eikon e2s Service and Repair Manual UL

Microwave Combination Oven
Merrychef eikon e2s
Service and Repair Manual UL – Original, USA / CAN
Part Number 32Z3936
Read instructions before use
Contents
Contents
1
General information
4
1.1
1.2
1.3
1.4
1.5
1.6
Important Information
Renseignements importants à lire avant l'utilisation
Environmental protection
Identifying your microwave combination oven
Structure of technical documentation
About this Service and Repair Manual
5
5
5
6
7
7
2
Design and function
2.1
2.2
Design and function of the microwave combination oven
Layout and function of the operating panel
3
For your safety
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
Basic safety code
Intended use of your microwave combination oven
Warning signs on your microwave combination oven
Summary of hazards
Aperçu des risques
Hazards and safety precautions when moving the appliance
Hazards and safety precautions when setting up the appliance
Hazards and safety precautions during installing
Hazards and safety precautions when preparing appliance for use
Hazards and safety precautions during cleaning
Hazards and safety precautions during servicing and repair
Hazards and safety precautions when taking the appliance out of service
Safety devices
Requirements to be met by personnel and working positions
Personal protective equipment
Équipement de protection individuelle
4
Setting up the appliance
4.1
4.2
4.3
Safe working when setting up the appliance
Requirements for the installation location
Mounting the appliance on a work surface
5
Installation
5.1
5.2
Safe working during electrical installation
Planning the electrical installation
6
Preparing the appliance for use
6.1
6.2
6.3
6.4
6.5
Safe working when preparing the appliance for use
Procedure for preparing the appliance for use
Start page
The keyboard screen
Using a USB stick
7
Cleaning procedures
7.1
Daily cleaning tasks
eikon e2s Service and Repair Manual UL
10
11
12
13
14
23
24
27
29
31
32
33
34
35
37
39
40
42
43
45
47
48
49
51
52
53
54
57
58
61
64
65
66
68
69
2
Contents
7.2
7.3
7.4
7.5
7.5.1
7.5.2
Cleaning chemicals
Items required for cleaning
Safe working when cleaning
Cleaning procedures
Cool down procedure before cleaning
Cleaning instructions
8
Technical data
8.1
8.2
Technical data
Dimensional drawings
9
Diagnostics
9.1
9.2
9.3
Checking the condition of your appliance
Errors and diagnostics
Fault finding
10
Tests
10.1
10.2
10.3
10.4
10.5
Safe working when testing components
Requirements
Testing selected components (casing mounted)
High voltage components (casing removed)
Mains voltage components (casing removed)
11
Firmware
11.1
Firmware Updates
12
Replacing components
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
12.10
12.11
12.12
12.13
12.14
12.15
Safe working when replacing appliance parts
Overview
Removing / fitting the casing
Removing / fitting the door assembly
Replacing a magnetron
Replacing the cooling fan
Replacing the QTS (Quick Touch Screen) assembly
Replacing the SRB (Smart Relay Board)
Replacing the touchscreen overlay
Adjusting the door microswitches / interlocks
Replacing the stirrer motor
Replacing the convection fan motor
Replacing a transformer (high voltage)
Removing the convection fan motor speed controller
Overview - further components
13
Circuit boards and diagrams
13.1
13.2
SRB / QTS circuit boards
Circuit diagrams
14
Commissioning the appliance
eikon e2s Service and Repair Manual UL
69
70
71
73
74
76
81
82
84
85
86
89
96
100
101
104
104
113
116
117
118
134
135
138
143
146
151
156
158
163
165
167
169
173
175
178
180
185
186
189
3
191
1 General information
1
General information
Purpose of this chapter
This chapter shows you how to identify your microwave combination oven and provides guidance on
using this manual.
Contents
This chapter contains the following topics:
Important Information
Renseignements importants à lire avant l'utilisation
Environmental protection
Identifying your microwave combination oven
Structure of technical documentation
About this Service and Repair Manual
eikon e2s Service and Repair Manual UL
4
Page
5
5
5
6
7
7
1 General information
1.1 Important Information
®
Users are cautioned that maintenance and repairs should be performed by a Merrychef authorised
®
®
service agent using genuine Merrychef replacement parts. Merrychef will have no obligation with
respect to any product that has been improperly installed, adjusted, operated or not maintained in
accordance with national and local codes or installation instructions provided with the product, or any
product that has its serial number defaced, obliterated or removed, or which has been modified or
repaired using unauthorised parts or by unauthorised service agents. For a list of authorised service
agents please refer to your distributor.
1.2 Renseignements importants à lire avant l'utilisation
Les utilisateurs sont avisés que l’entretien et les réparations devraient être effectués par un agent de
service autorisé de Merrychef utilisant des pièces de rechange d’origine Merrychef. Merrychef rejette
toute responsabilité relativement à tout produit qui a été installé, ajusté, utilisé incorrectement ou qui
n’est pas entretenu conformément aux codes fédéraux, provinciaux et locaux ou aux instructions
d’installation fournies avec l’appareil, ou à tout produit dont le numéro de série a été abîmé, effacé ou
enlevé, ou qui a été modifié ou réparé en utilisant des pièces non-autorisées ou par des agents de
service non-autorisés. Pour la liste des agents de service autorisés, se référer à la dernière page de ce
manuel. Les renseignements contenus dans ce manuel (incluant les spécifications de la conception et
des pièces) peuvent être remplacés et sont sous réserve de changements sans préavis.
1.3 Environmental protection
Statement of principles
Our customers' expectations, the legal regulations and standards and our company's own reputation set
the quality and service for all our products.
We have an environmental management policy that not only ensures compliance with all environmental
regulations and laws, but also commits us to continuous improvement of our green credentials.
We have developed a quality and environmental management system in order to guarantee the continued manufacture of high-quality products and to be sure of meeting our environmental targets.
This system satisfies the requirements of ISO 9001:2008 and ISO 14001:2004.
Environmental protection procedures
We observe the following procedures:
 Use of RoHS2-compliant products
 REACH chemical law
 Recycling of electronic waste
 Environmentally friendly disposal of old appliances via the manufacturer
Join us in our commitment to protect the environment.
eikon e2s Service and Repair Manual UL
5
1 General information
1.4 Identifying your microwave combination oven
Position of nameplate
The nameplate is located on the rear of your microwave combination oven.
1
Model number
eikon e2s
2
Elements of the item
number
Label
Model
e2s
Power output
convection
D
2200W
F
2200W / 1300W
G
2200W / 900W
B
2000W (High Power version)
X
1000W (Standard Power
version)
30
230V
MV5
220-230V / 50Hz
MV6
208-240V / 60Hz
00
200V
20
220V
5
50Hz
Power output
microwave
Voltage
Frequency
6
60Hz
Lead
A-Z
Example: H = L+N+E (4mm
EU)
Plug
A-Z
Example: E = 3-pin plug
Communication
L
USB + LAN
U
USB
A, B
A, B (pre-production)
1, 2, ...
1, 2, ... (serial production)
CF
"Trend" exterior
CL
"Classic" exterior
WW
Specific customer
EU
Europe
US
United States of America
Version
Accessory / Customer
Region / Country
3
Elements of the serial Label
number
Meaning
Year of manufacture
15
2015
16, ...
2016, ...
01
January
Month of manufacture
02, ...
February, ...
Place of manufacture
2130
Sheffield (UK)
Production number
12345
4
Technical data
5
Date of manufacture
eikon e2s Service and Repair Manual UL
Meaning
6
1 General information
1.5 Structure of technical documentation
Contents
The technical documentation for the microwave combination oven includes the following documents:
 Installation and Operating Manual
 Service and Repair Manual (this document)
1.6 About this Service and Repair Manual
Purpose
This Service and Repair Manual is intended for all trained service technicians who work with the microwave combination oven, and provides them with the necessary information for carrying out servicing
and repair work properly and safely.
Who should read the Service and Repair Manual
Name of target group
Tasks
Trained service technicians All servicing and repair work
Parts of this document that must be read without fail
If you do not follow the information in this document, you risk potentially fatal injury and property damage.
To guarantee safety, all people who work with the microwave combination oven must have read and
understood the following parts of this document before starting any work:
 The chapter 'For your safety' on page 13
 The sections that describe the activity to be carried out
Parties du présent document à lire absolument
Le non-respect des informations contenues dans ce document vous fait encourir risques de
blessures, même mortelles, ainsi que des dommages matériels.
Pour assurer la sécurité, toutes les personnes manipulant le four mixte doivent avoir lu et compris les
parties suivantes du présent document avant de commencer tous travaux quelconques :
 le chapitre 'Pour votre sécurité'.
 les sections décrivant l'action à effectuer.
Chapters in the service and repair manual
Chapter/section
Purpose
General information
 Shows you how to identify your appliance
 Provides guidance on using this Service and Repair Manual
Design and function
 Specifies the intended use of the appliance
 Explains the functions of the appliance and shows the position of its compo-
nents
For your safety
 Describes the hazards posed by the appliance and suitable preventive
measures
 It is important that you read this chapter carefully.
eikon e2s Service and Repair Manual UL
7
1 General information
Chapter/section
Purpose
Setting up the appliance
 Explains how to unpack the appliance and specifies the parts supplied with the
appliance
 Explains how to set up the appliance
Installation
Provides information on installing the electrical supply
Preparing the appliance for use Explains the procedure for preparing the appliance for first-time use
Cleaning procedures





Technical data
Contains the technical data and dimensional drawings
Diagnostics
Contains a catalogue of potential errors and faults and specifies the required
actions
Tests
Contains instructions about testing various components of the appliance
Firmware
Explains the procedure to check and to update the firmware of the appliance
Replacing components
Contains instructions for removing and fitting the appliance parts in order to
repair a defective appliance
Circuit diagrams and boards
Shows electrical circuit diagrams and terminal locations on boards
Commissioning the appliance
Contains checklists which actions to take when preparing the appliance for first
time-use and recommissioning it after service/repair.
Explains the principles of the cleaning methods
Contains the cleaning instructions
Describes the cleaning chemicals and how to prepare them for use
Contains the instructions for working procedures during cleaning
Contains and refers to the instructions for handling operations on the microwave combination oven regularly performed during cleaning
Safety alert symbol
Safety alert symbol
Meaning
Warns of potential injuries. Heed all the warning notices that appear after this
symbol to avoid potential injuries or death.
Symbole de danger
Symbole de danger
Signification
Sert à prévenir de toute blessure potentielle. Veuillez respecter tous les
avertissements cités à la suite de ce symbole afin d'éviter toute blessure possible
voire la mort.
Form of warning notices
The warning notices are categorized according to the following hazard levels:
Hazard level
NOTICE
Consequences
Likelihood
Death / serious injury (irreversible)
Immediate risk
Death / serious injury (irreversible)
Potential risk
Minor injury (reversible)
Potential risk
Damage to property
Potential risk
eikon e2s Service and Repair Manual UL
8
1 General information
Présentation des avertissements
Les avertissements sont catégorisés selon les niveaux de risque suivants :
Niveau de risque
REMARQUE
Conséquences
Probabilité
Mort/ blessures graves (irréversibles)
Imminent
Mort/ blessures graves (irréversibles)
Eventuellement
Blessure légère (réversible)
Eventuellement
Dommages matériels
Eventuellement
Decimal points
Decimal points are used throughout this manual in any language available.
eikon e2s Service and Repair Manual UL
9
2 Design and function
2
Design and function
Purpose of this chapter
This chapter describes the design and construction of the microwave combination oven and explains its
functions.
Contents
This chapter contains the following topics:
Design and function of the microwave combination oven
Layout and function of the operating panel
eikon e2s Service and Repair Manual UL
10
Page
11
12
2 Design and function
2.1 Design and function of the microwave combination oven
Parts and their function
Item
Name
Function
1
ON/OFF appliance switch
Used to turn the microwave combination oven on and off.
Turning this switch off does not isolate the appliance from the electricity
supply.
2
easyToUCH® screen
control panel
When the appliance is switched on the easyToUCH® screen illuminates the
user interface.
See 'Cooking procedures' for details.
3
Nameplate
(no picture)
Located on the rear panel of the appliance the nameplate states the serial
number, model type and electrical specifications.
4
USB port
A USB socket located under the cover allows updates to programs stored on
the appliance.
See USB MenuConnect® User Manual.
See 'Cooking procedures' section of this manual, for details of updating
cooking profiles.
5
Air outlets
(no picture)
Air used to cool internal components and steam from the cavity escape
through the air outlet vents located on the rear of the appliance. The air
outlets must be kept free from obstruction and they will not allow microwave
energy to escape into the environment.
6
Appliance door
The door is a precision-made energy barrier with three microwave safety
interlocks. Always keep it clean and do not use it to support heavy objects.
See 'Cleaning procedures' on page 68.
7
Air filter
The air filter situated at the lower front of the appliance is part of the
ventilation system. Keep it free of obstruction and clean it daily as described
under ‘Cleaning procedures’ on page 68. The appliance will not operate
without the air filter fitted.
8
Door handle
The door handle is a rigid bar which is pulled downwards and away from the
appliance to open it.
eikon e2s Service and Repair Manual UL
11
2 Design and function
Item
Name
Function
9
Door seals
The door seals ensure a tight seal around the door. Always keep them clean
and check regularly for signs of damage. At the first sign of wear have them
replaced by a Merrychef approved service agent.
See 'Cleaning procedures' on page 68.
10
Air diffuser
(not fitted to all appliances)
Keep the air diffuser clean and free of debris. Take great care when cleaning
this area of the appliance noting the different requirements shown under
‘Cleaning procedures’ on page 68 in this manual.
11
Cavity
The cavity (cooking chamber) is constructed from stainless steel and used
for cooking products. Keep it clean by following the cleaning instructions in
the ‘Cleaning procedures’ on page 68 section of this manual.
Material
The interior and exterior structure of the appliance is made of stainless steel in either a brushed finish or
colour-coded.
2.2 Layout and function of the operating panel
Elements and their function
Item
Name
Function
1
ON/OFF appliance switch
Switches the microwave combination oven on and off.
2
Touchscreen
Central controls of the appliance
 Appliance operated by touching icons on touchscreen pages
 Status displays
3
USB port
For connecting a USB memory stick
eikon e2s Service and Repair Manual UL
12
3 For your safety
3
For your safety
Purpose of this chapter
This chapter provides you with all the information you need in order to use the microwave combination
oven safely without putting yourself or others at risk.
This is a particularly important chapter that you must read through carefully.
Contents
This chapter contains the following topics:
Basic safety code
Intended use of your microwave combination oven
Warning signs on your microwave combination oven
Summary of hazards
Aperçu des risques
Hazards and safety precautions when moving the appliance
Hazards and safety precautions when setting up the appliance
Hazards and safety precautions during installing
Hazards and safety precautions when preparing appliance for use
Hazards and safety precautions during cleaning
Hazards and safety precautions during servicing and repair
Hazards and safety precautions when taking the appliance out of service
Safety devices
Requirements to be met by personnel and working positions
Personal protective equipment
Équipement de protection individuelle
eikon e2s Service and Repair Manual UL
13
Page
14
23
24
27
29
31
32
33
34
35
37
39
40
42
43
45
3 For your safety
3.1 Basic safety code
Object of this safety code
This safety code aims to ensure that all persons who use the microwave combination oven have a
thorough knowledge of the hazards and safety precautions, and that they follow the warning notices
given in the user manual and on the appliance. If you do not follow this safety code, you risk potentially
fatal injury and property damage.
Referring to the user manuals included in the customer documentation
Follow the instructions below:
 Read in full the chapter 'For Your Safety' on page 13 and the chapters that relate to your work.
 Always keep to hand the manuals included in the customer documentation for reference.
 Pass on the user manuals included in the customer documentation with the microwave combination
oven if it changes ownership.
Personal protective equipment for your personnel
Instruct your personnel to wear the correct personal protective equipment specified in the section
'Personal protective equipment' on page 43 in the 'For your safety‘ chapter for the relevant tasks.
Basic rules for installation
The appliance must be installed in compliance with all national and state laws and regulations, with all
applicable local requirements and regulations set forth by the relevant local utility companies and
authorities, and with all other relevant regulations and standards.
These include, but are not limited to:
 The National Electrical Code, ANSI/NFPA 70 (current edition)
 The Canadian Electrical Code, CSA C22.1
 The Food Code and Food Service Sanitation Manual published by the Food and Drug Administration
(FDA) (current editions)
 The standards published by the National Sanitation Foundation (NSF)
 All local fire protection and occupational health and safety regulations
Règles de base pour l'installation
L'installation doit s'effectuer conformément à toutes les lois et prescriptions étatiques et fédérales, ainsi
qu'aux prescriptions locales des opérateurs et autorités locales ainsi qu'aux autres directives applicables.
Outre les autres prescriptions doivent également être respectés :
 National Electrical Code, ANSI/NFPA 70 (édition actuelle)
 Canadian Electrical Code, CSA C22.1
 Food Code et Food Service Sanitation Manual de la Food and Drug Administration (FDA) (édition
actuelle respective)
 Prescriptions de la National Sanitation Foundation (NSF)
 Toutes les prescriptions en matière de protection incendie, sécurité au travail et protection sanitaire
eikon e2s Service and Repair Manual UL
14
3 For your safety
Working with the microwave combination oven
Follow the instructions below:
 Only those persons who satisfy the requirements stipulated in this installation and operating manual
are permitted to use the microwave combination oven.
 Only use the microwave combination oven for the specified use. Never, under any circumstances, use
the microwave combination oven for other purposes.
 Take all the safety precautions specified in this installation and operating manual and on the microwave combination oven. In particular, use the prescribed personal protective equipment.
 Only stand in the working positions specified.
 Do not make any changes to the microwave combination oven, e. g. removing parts or fitting
un-approved parts. In particular, you must not disable any safety devices.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances basic safety precautions should be followed, including the
following:
To reduce the risk of burns, electric shock, fire, injury to persons, or exposure to excessive
microwave energy:
 Read all instructions before using the appliance.
 Read and follow the specific 'PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY'.
 This appliance must be grounded. Connect only to a properly grounded outlet. See
'GROUNDING INSTRUCTIONS' on page 54.
 Install or locate this appliance only in accordance with the provided installation instructions.
Restrictions on use
 Use this appliance only for its intended use as described in the manual. Do not use corrosive
chemicals or vapors in this appliance. This type of oven is specifically designed to heat, cook
or toast food. It is not designed for industrial or laboratory use.
 Never use the appliance to heat alcohol, e. g. brandy, rum, etc. Food containing alcohol can
more easily catch fire if overheated. Observe caution and do not leave the appliance
unattended.
 Never attempt to deep fry in the oven.
 Some products such as whole eggs and sealed containers – for example, closed glass jars –
are able to explode and should not be heated in this oven.
 Do not operate the appliance using microwave only or combination function without food or
liquid inside the cooking chamber as this may result in overheating and may cause damage.
 The appliance should not be used to dry linen.
 Do not attempt to operate the appliance with: an object caught in the door, door that does not
close properly; a damaged door, hinge, latch, sealing surface or without food in the oven.
 Do not use the cavity for storage purposes. Do not leave paper products, cooking utensils or
food in the cavity when not in use.
 Do not store any materials, other than manufacturer's recommended accessories, in this
oven when not in use.
eikon e2s Service and Repair Manual UL
15
3 For your safety
Precautions when using the microwave combination oven
 When handling hot liquids, foods and containers, care should be taken to avoid scalds and
burns.
 Liquids, such as water, coffee or tea are able to be overheated beyond the boiling point
without appearing to be boiling. Visible bubbling or boiling when the container is removed
from the microwave combination oven is not always present. THIS COULD RESULT IN
VERY HOT LIQUIDS SUDDENLY BOILING OVER WHEN THE CONTAINER IS
DISTURBED OR A UTENSIL IS INSERTED INTO THE LIQUID.
 As with any cooking appliance, care should be taken to avoid combustion of the items within
the appliance.
Instructions for safe use of the microwave combination oven
 When heating liquids using microwave only or combination function, the contents should be
stirred prior to heating to help prevent eruptive boiling.
 Items should be unwrapped when using convection and combination functions.
 Excess fat should be removed during ‘roasting’ and before lifting heavy containers from the
oven.
 Food with a skin, e. g. potatoes, apples, sausages, etc. should be pierced before heating.
 In the event of glass breaking or shattering within the oven, ensure that food is totally free of
glass particles. If in doubt, dispose of any food that was in the oven at the time of the
breakage.
 Switch off the appliance at the end of all the cooking sessions for that day.
To reduce the risk of fire in the oven cavity
 Do not overcook food. Carefully attend appliance when paper, plastic, or other combustible
materials are placed inside the oven to facilitate cooking.
 Remove wire twist-ties from paper or plastic bags before placing a bag in the oven.
 Food in combustible plastic or paper containers should be transferred to a microwave/oven
proof container to avoid the possibility of ignition.
 Do not use paper products when appliance is operated in the toaster mode.
 Oversized foods or oversized metal utensils should not be inserted in a microwave/toaster
oven as they may create a fire or risk of electric shock.
 Do not cover racks or any other part of the oven with metal foil. This will cause overheating of
the oven.
 If materials inside the oven ignite, keep the oven door closed. Turn the oven off, and disconnect the supply cord, or shut off power at the fuse or circuit breaker panel.
Requirements to be met by operating personnel
 As with any appliance, close supervision is necessary when used by children.
 This appliance should be serviced only by qualified service personnel. Contact nearest
authorized service facility for examination, repair, or adjustment.
eikon e2s Service and Repair Manual UL
16
3 For your safety
Requirements relating to the operating condition of the microwave combination
oven
 As with all electrical appliances, it is recommended to have the electrical connections
inspected at least once a year.
 Never remove the external covers of the appliance.
 Never remove any fixed internal parts of the appliance.
 Never tamper with the control panel, door, seals, or any other part of the appliance.
 Do not cover or block any openings on the appliance including air vents/filters and steam
outlet.
 Never hang dish towels or cloths on any part of the appliance.
 Do not operate this appliance if it has a damaged cord or plug, if it is not working properly, or
if it has been damaged or dropped.
 The appliance must not be operated without the air filter in place.
 If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
 Do not immerse the supply cord or plug in water.
 Keep the supply cord away from heated surfaces.
 Do not let the supply cord hang over an edge of a table or counter.
Requirements relating to the operating environment of the microwave combination oven
 Do not store this appliance outdoors. Do not use this product near water – for example, near
a kitchen sink, in a wet basement, near a swimming pool, or similar locations.
 The floor adjacent to the appliance may be slippery. Clean up spillages immediately.
Cleaning requirements
 The appliance should be cleaned regularly and any food deposits removed.
 The cooking chamber of the appliance and the door seals should be cleaned frequently.
Failure to maintain the appliance in a clean condition could lead to deterioration of the
surface that could adversely affect the life of the appliance and possibly result in a hazardous situation.
 When cleaning surfaces of door and oven that come together on closing the door see the
instructions on cleaning the door surface in the 'Cleaning procedures' on page 68 section of
this manual.
 Do not clean with metal scouring pads. Pieces can burn off the pad and touch electrical parts
involving a risk of electric shock.
SAVE THESE INSTRUCTIONS
eikon e2s Service and Repair Manual UL
17
3 For your safety
DIRECTIVES IMPORTANTES PORTANT SUR
LA SÉCURITÉ
Lors de l’utilisation d’appareils électriques, des précautions sécuritaires fondamentales doivent être prises incluant ce qui suit :
Pour réduire les risques de brûlures, de chocs électriques, d’incendie, de blessures
corporelles ou d’exposition excessive à l’énergie micro-ondes :
1. Lire toutes les directives avant d’utiliser l’appareil.
2. Lire et observer spécifiquement les 'PRÉCAUTIONS POUR ÉVITER UNE
EXPOSITION EXCESSIVE À L’ÉNERGIE MICRO-ONDES' indiquées.
3. Cet appareil doit être mis à la terre. Ne le brancher qu’à une prise de courant correctement mise à la terre. Voir 'INSTRUCTIONS POUR LA MISE À LA TERRE' on
page 55 indiquées.
4. Installer ou localiser cet appareil conformément aux instructions d’installation fournies.
5. Certains produits comme des oeufs entiers et des contenants scellés (pots fermés
par exemple) peuvent exploser et ne devraient pas être chauffés dans ce four.
6. Utiliser cet appareil uniquement aux fins prévues décrites dans le manuel. Ne pas
utiliser de produits chimiques ou des vapeurs corrosifs dans cet appareil. Ce type de
four est conçu spécialement pour chauffer, cuire ou sécher des aliments. Il n’est pas
conçu pour un usage commercial ou en laboratoire.
7. Cet appareil ne devrait pas être utilisé par les enfants.
8. Ne pas utiliser cet appareil si le cordon électrique ou la prise sont endommagés, s’il
ne fonctionne pas correctement ou s’il a été endommagé ou échappé.
9. Cet appareil doit être entretenu uniquement par un personnel de service qualifié.
Contacter le centre de service autorisé le plus près pour l’inspection, la réparation ou
les ajustements.
10. Ne pas couvrir ou bloquer les ouvertures de l’appareil incluant les évents et les
filtres à air et les orifices de sortie de la vapeur.
11. Ne pas entreposer cet appareil à l’extérieur. Ne pas utiliser cet appareil près de
l’eau (près d’un évier de cuisine, dans une cave humide, près d’une piscine, par exemple).
12. Ne pas immerger le cordon électrique ou la prise dans l’eau.
13. Maintenir le cordon électrique éloigné des surfaces chaudes.
14. Ne pas laisser le cordon électrique pendre sur le bord de la table ou du comptoir.
15. L’un ou l’autre de ce qui suit:
i) Lors du nettoyage des surfaces de la porte et des surfaces du four faisant contact à
la fermeture de la porte, utiliser uniquement des savons doux ou des détergents
non-abrasifs appliqués avec une éponge ou un linge doux.
ii) Lorsque d’autres instructions de nettoyage sont fournies, voir les instructions de
nettoyage des surfaces de la porte.
eikon e2s Service and Repair Manual UL
18
3 For your safety
16. Pour réduire les risques d’incendie dans la cavité:
i) Ne pas faire trop cuire les aliments. Surveiller l’appareil avec soin si des matériaux
de papier, de plastique ou autres matériaux combustibles sont placés dans le four pour
faciliter la cuisson.
ii) Enlever les ligatures métalliques des sacs de papier ou de plastique avant de les
placer dans le four.
iii) Si les matériaux dans le four s’enflamment, maintenir la porte du four fermée,
commuter le four hors circuit, débrancher le cordon électrique et couper l’alimentation
électrique au panneau des fusibles ou des disjoncteurs.
iv) Ne pas utiliser la cavité du four à des fins d’entreposage. Ne pas laisser de produits
de papier, d’ustensiles de cuisson ou des aliments dans la cavité lorsque le four n’est
pas utilisé.
17. Des liquides comme l’eau, le café ou le thé peuvent être surchauffés au-delà du
point d’ébullition sans qu’il y ait des signes d’ébullition. Des signes visibles de bouillonnement ou d’ébullition ne sont pas toujours présents lorsque le contenant est retiré
du four micro-ondes. CECI POURRAIT RÉSULTER EN UNE ÉBULLITION
SOUDAINE LORSQUE LE CONTENANT EST DÉPLACÉ OU LORSQU’UN
USTENSILE EST INTRODUIT DANS LE LIQUIDE.
18. NE PAS UTILISER la fonction micro-ondes seulement ou la fonction combinée s’il
n’y a pas d’aliment ou de liquide dans le four puisque ceci pourrait causer une surchauffe et des dommages.
19. NE JAMAIS RETIRER le boîtier extérieur du four.
20. NE JAMAIS RETIRER les parties internes fixes du four.
21. NE JAMAIS TRAFIQUER le tableau de commande, la porte, les joints ou toute
autre pièce du four.
22. NE JAMAIS OBSTRUER les évents et les filtres à air ou l’orifice de sortie de la
vapeur.
23. NE JAMAIS SUSPENDRE de torchons ou de linges à vaisselle sur une partie du
four.
24. Si les joints de la porte sont endommagés, le four doit être réparé par un agent de
service agréé.
25. Si le cordon électrique est endommagé de quelque façon, il DOIT être réparé par
un agent de service agréé.
26. Lors de la manipulation de liquides, aliments et contenants chauds, prendre des
précautions pour éviter les brûlures.
27. Lors du chauffage de liquides utilisant la fonction micro-ondes seulement ou la
fonction combinée, le contenu devrait être brassé avant le chauffage pour éviter
l’ébullition éruptive.
28. Les biberons et les jarres d’aliment pour bébé ne devraient pas être chauffés dans
cet appareil.
29. Ne jamais utiliser le four pour chauffer de l’alcool, c.-à-d., brandy, rhum, etc. Les
aliments contenant de l’alcool peuvent facilement prendre feu s’ils sont surchauffés.
Être prudent et ne jamais laisser le four sans surveillance.
30. Ne jamais tenter de friture dans le four.
eikon e2s Service and Repair Manual UL
19
3 For your safety
31. L’appareil n’est pas conçu pour être utilisé par les enfants ou les personnes infirmes sans supervision.
32. Les enfants devraient être surveillés pour s’assurer qu’ils ne jouent pas avec
l’appareil.
PRÉCAUTIONS À PRENDRE
1. Lire ce manuel au complet avant d’utiliser votre four.
2. Comme pour tous les appareils électriques, il est sage de faire inspecter les connexions électriques au moins une fois par année.
3. L’intérieur du four, les joints de la porte devraient être nettoyés fréquemment, conformément aux directives présentées à la section portant sur le nettoyage. Le manquement à ces directives peut créer des situations dangereuses.
4. Commuter le four hors circuit à la fin de toutes les sessions de cuisson pour la
journée.
5. Le four ne doit pas être utilisé pour faire sécher des linges.
6. Comme pour tout autre appareil de cuisson, prendre soin d’éviter toute combustion
d’articles dans le fourneau.
7. Les aliments dans des contenants combustibles de plastique ou de papier devraient
être transférés dans des contenants pouvant être utilisés dans un four à micro-ondes/ordinaires pour prévenir les risques d’ignition.
8. Les articles devraient être déballés lorsque les fonctions de cuisson par convection
ou combinée sont utilisées.
9. Les oeufs en coquille et les oeufs durs complets ne doivent pas être chauffés dans
le four puisqu’ils peuvent exploser.
10. Les aliments avec pelure, c.-à-d., pommes de terre, pommes, saucisse, etc.
devraient être percés avant d’être chauffés.
11. Les aliments ne doivent pas être chauffés dans un contenant complètement scellé
puisque la montée de vapeur peut causer une explosion.
12. L’excès de gras devrait être enlevé durant le rôtissage et avant de retirer des
contenants lourds du four.
13. Dans le cas où du verre casse ou se brise dans le four, s’assurer que les aliments
sont complètement libres de toutes particules de verre. En cas de doute, jeter tous les
aliments qui se trouvaient dans le four au moment du bris.
14. NE JAMAIS TENTER d’utiliser le four lorsqu’un objet bloque la porte qui ne se
ferme pas correctement ainsi que lorsque la porte, le verrouillage, les surfaces
d’étanchéité sont endommagées ou lorsqu’il n’y a pas d’aliments dans le four.
Si on observe de la fumée:
• Commuter le four hors circuit
• Fermer le disjoncteur/commutateur de l’alimentation électrique
• Garder la porte fermée pour étouffer les flammes
CONSERVER CES INSTRUCTIONS
eikon e2s Service and Repair Manual UL
20
3 For your safety
More on this ...
Related topics
 Summary of hazards
 Hazards and safety precautions during cleaning
 Hazards and safety precautions when moving the appliance
 Hazards and safety precautions when setting up the appliance
 Hazards and safety precautions during installing
 Hazards and safety precautions when preparing appliance for use
 Hazards and safety precautions when taking the appliance out of service
 Safety devices
 Requirements to be met by personnel and working positions
 Personal protective equipment
27
35
31
32
33
34
39
40
42
43
IMPORTANT
This manual provides technical guidance for technicians who have successfully undertaken a recognized product familiarization and training course run by Merrychef to carry out service/repair tasks to the
appliance/s shown on the front cover of this manual which must not be used for any other make or model
of appliance.
Please remember that it is wiser not to attempt a service task if you are unsure of being able to complete
it competently, quickly, and above all safely.
To avoid injury to yourself or others and to protect the appliance from possible damage, ensure you have
read and understand all the relevant instructions and ALWAYS follow the Safety Codes when servicing
an oven.
1.
Ensure the electrical supply is locked-off to prevent the oven from being inadvertently powered up.
2.
Do not leave the oven unattended without the oven panels fitted and keep within sight of other
personnel when testing the oven, ensuring persons other than trained engineers are denied
access.
3.
The minimum number of panels should be removed and the high voltage capacitors must be
discharged before working on the oven using a suitably insulated 10 MΩ resistor.
4.
Temporary insulation should be used to prevent accidental contact with dangerous conductors.
5.
Do not touch any internal wiring or connectors within the oven, whether you believe it is live or not
and avoid touching the metalwork (casing, panels, etc) of the oven with your body.
6.
Only use electrically rated screwdrivers for adjusting ‘Pots’ etc., ensuring the tool touches nothing
else.
7.
Ensure the test equipment is set correctly before use.
8.
Test equipment such as meter test leads or clamps must be fitted and removed whilst the unit is
dead, for each and every test.
9.
Do not undertake functional magnetron testing with the panels of the casing removed.
10.
Avoid touching the test equipment, unless necessary for the operation.
11.
Upon completion of a service follow the steps for commissioning the oven under the "Commissioning the appliance" section of this manual.
eikon e2s Service and Repair Manual UL
21
3 For your safety
IMPORTANT
To Service Technicians:
PRECAUTIONS TO BE OBSERVED BEFORE
AND DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY.
a.
Do not operate or allow the oven to be operated with the door open.
b.
Make the following safety checks on all ovens to be serviced before activating the magnetron or
other microwave source, and make repairs as necessary:
1) interlock operation,
2) proper door closing,
3) seal and sealing surfaces (arcing, wear, and other damage),
4) damage to or loosening of hinges and latches,
5) evidence of dropping or abuse.
c.
Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for
proper alignment, integrity and connection.
d.
Any defective or misadjusted components in the interlock, monitor, door seal, and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures
described in this manual before the oven is released to the owner.
e.
A microwave leakage check to verify compliance with the Federal Performance Standard for the
U.S.A. or the Canadian Regulation, HEALTH AND WELFARE, SOR/79 920 for Canada should be
performed on each oven prior to release to the owner.
eikon e2s Service and Repair Manual UL
22
3 For your safety
3.2 Intended use of your microwave combination oven
Intended use of your microwave combination oven
The microwave combination oven must only be used for the purposes specified below:
 The microwave combination oven is designed and built solely for cooking different foodstuffs in
containers approved by the manufacturer. Microwave, convection and impingement are used for this
purpose.
 The microwave combination oven is intended solely for professional, commercial use.
Restrictions on use
Some materials are not allowed to be heated in the microwave combination oven:
 No dry powder or granulated material
 No highly flammable objects with a flash point below 270°C / 518°F, such as highly flammable oils,
fats or cloths (kitchen cloths)
 No food in sealed tins or jars
Requirements to be met by personnel
 The microwave combination oven must only be operated and installed by personnel who satisfy
specific requirements. Please refer to 'Requirements to be met by personnel, working positions' on
page 42 for the training and qualifications requirements.
 Personnel must be aware of the risks and regulations associated with handling heavy loads.
Requirements relating to the operating condition of the microwave combination oven
 Do not operate the microwave combination oven unless it has been properly transported, set up,
installed and placed into operation as indicated in this manual and the person responsible for placing
it into operation has confirmed this.
 The microwave combination oven must only be operated when all safety devices and protective
equipment are fitted, in working order and fixed properly in place.
 The manufacturer's regulations for operation and servicing of the microwave combination oven must
be observed.
Requirements relating to the operating environment of the microwave combination oven
Specified operating environment for the microwave combination oven:
 The ambient temperature lies between +4°C / 40°F and +35°C / 95°F
 Not a toxic or potentially explosive atmosphere
 Dry kitchen floor to reduce the risk of accidents
Specified properties of the installation location:
 No fire alarm, no sprinkler system directly above the appliance
 No flammable materials, gases or liquids above, on, under or in the vicinity of the appliance
 It must be possible to set up the microwave combination oven in the installation position so that it
cannot tip over or slide about. The supporting surface must comply with these requirements.
Mandatory restrictions on use:
 The appliance must not be operated outdoors and not be shifted or moved during use.
Cleaning requirements
 Use only cleaning chemicals that have been approved by the manufacturer.
 High-pressure cleaners or water jets must not be used for cleaning.
 The appliance must not be treated with alkali or acid solutions or exposed to acid fumes.
eikon e2s Service and Repair Manual UL
23
3 For your safety
3.3 Warning signs on your microwave combination oven
Warning and safety signs
eikon e2s Service and Repair Manual UL
24
3 For your safety
Mandatory warning signs
The following warning signs / notices must be attached to the microwave combination oven and optional
accessories in the area indicated so as to be easily visible at all times.
Area
Warning sign
Description
1
Microwaves warning
There is a risk of external and internal burns of body parts following exposure to
microwave energy.
2
Electric shock warning
There is a risk of electric shock if the appliance is serviced without disconnecting the electrical supply.
3
Fire / electric shock warning
There is a risk of fire / electric shock if the appliance is operated without
respecting the minimum clearances.
4
Hot surface warning
There is a risk of burns from high temperatures inside the cavity and on the
inside of the appliance door.
5
Electric shock warning
There is a risk of electric shock if the electrical power is not connected to a
properly grounded outlet.
Symboles d'avertissement nécessaires
Les avertissements suivants doivent toujours être apposés bien visibles sur le four mixte dans les zones
repérées.
Zone
Symbole
d'avertissement
Description
1
Avertissement micro-ondes
Il y a un risque de brûlures à cause d'une exposition excessive à l'énergie
micro-ondes.
2
Avertissement choc électrique
3
Avertissement choc électrique / incendie
4
Avertissement surfaces chaudes
Il y a un risque de brûlure par hautes températures dans l'enceinte et en face
intérieure de la porte de l'appareil.
5
Avertissement choc électrique
eikon e2s Service and Repair Manual UL
25
3 For your safety
Safety symbols
The following safety symbols be attached to the microwave combination oven and optional accessories
in the area indicated so as to be easily visible at all times.
Area
Safety symbol
Description
Protective Earth (Ground)
1
Symbole de sécurité
Les avertissements suivants doivent toujours être apposés bien visibles sur le four mixte dans les zones
repérées.
Zone
1
Symbole de
sécurité
Description
Mise à la terre (Ground)
eikon e2s Service and Repair Manual UL
26
3 For your safety
3.4 Summary of hazards
General rules for dealing with hazards and safety precautions
The microwave combination oven is designed to protect the user from all hazards that can reasonably
be avoided by design measures.
The actual purpose of the microwave combination oven, however, means that there are still residual
risks; you must therefore take precautions to avoid them. A safety device can provide you with a certain
degree of protection against some of these hazards. You must ensure, however, that these safety
devices are in place and in working order.
The nature of these residual risks and what effect they have are described below.
Hazard points
The following illustration shows a Merrychef e2s microwave combination oven:
Excessive microwave energy
The microwave combination oven generates microwave energy. An operation with an open or damaged
door or cavity can result in external and internal burns of body parts following exposure to microwave
energy.
Heat generation (1)
The microwave combination oven becomes hot inside the cavity and on the inside of the appliance door.
This poses a risk of burns on hot surfaces inside the microwave combination oven, and also on hot
appliance parts, food containers and other accessories used for cooking.
eikon e2s Service and Repair Manual UL
27
3 For your safety
Hot steam / vapour (2)
When cooking food the microwave combination oven may generate hot steam and vapour which
escapes when the appliance door is opened and which is removed through the air vents on the rear of
the microwave combination oven when the appliance door is closed. This poses a risk of scalding from
hot steam when the appliance door is opened. Take particular care when opening the appliance door if
the top door edge is below your field of vision.
Hot liquids
Foodstuffs are cooked in the microwave combination oven. These foodstuffs may also be liquid, or
liquefy during cooking. This poses a risk of scalding from hot liquids, which may be spilled if not handled
properly.
Live components (3)
The microwave combination oven contains live parts. This means a risk from live parts if the cover is not
in place.
Contact with cleaning chemicals
The microwave combination oven must be cleaned using special cleaning chemicals. This poses a risk
from cleaning chemicals, some of which can cause skin burns.
Parts moving against each other (4)
For various actions, such as opening/shutting the appliance door or cleaning the appliance door, there is
the risk that you will crush or cut your hand.
Undercooking of food products
Ensure all food is hot before serving to protect your guests from microbiological contamination of
foodstuffs.
eikon e2s Service and Repair Manual UL
28
3 For your safety
3.5 Aperçu des risques
Règles générales en cas de risques et mesures de sécurité
Le four mixte est conçu tel que l'utilisateur est raisonnablement protégé de tous les risques de construction évitables.
Dû à l'objet du four mixte, il existe cependant des risques résiduels contre lesquels vous devez prendre
des mesures de précaution pour les éviter. Vous pouvez vous protéger jusqu'à un certain degré contre
certains de ces risques, par un dispositif de sécurité. Vous devez cependant veiller à ce que ces dispositifs soient bien en place et qu'ils fonctionnent.
Vous apprendrez dans la suite la nature de ces risques résiduels et quels effets ils peuvent avoir.
Zones dangereuses
La figure suivante montre un four micro-ondes combiné Merrychef e2s :
Excessive microwave energy
Le four micro-ondes combiné génère de l'énergie micro-ondes. Utilisation de l'appareil avec une porte
ou une cavité ouverte ou endommagé peut causer des brûlures externes et internes des parties du
corps suite à une exposition à l'énergie des micro-ondes.
Développement de chaleur (1)
Le four micro-ondes combiné chauffe dans l'enceinte de cuisson et en face intérieure de la porte de
l'appareil. Ceci a pour conséquence un risque de brûlure sur les surfaces chaudes à l'intérieur du four
micro-ondes combiné, à l'intérieur également sur les parties chaudes de l'appareil, sur les supports
d'aliments et autres accessoires chauds utilisés pour la cuisson.
eikon e2s Service and Repair Manual UL
29
3 For your safety
Vapeur / buées chaudes (2)
Le four micro-ondes combiné génère de la vapeur et des buées chaudes qui s'échappent à l'ouverture
de la porte de l'appareil et qui, à porte d'appareil fermée, sont évacuées par les manchons d'évacuation
d'air vicié, en arrière du four. Ceci a pour conséquence des risques de brûlures par la vapeur chaude à
l'ouverture de la porte de l'appareil.
La porte de l'appareil ainsi que son verrouillage de sécurité vous protègent de la vapeur chaude si vous
utilisez la position de ventilation lors de l'ouverture de la porte et sur d'une manière générale, vous
veillez à ce que la porte de l'appareil reste intacte. Porter une attention particulière lors de l'ouverture de
la porte de l'appareil si le bord supérieur de la porte se trouve en dessous du champ du visage, comme
cela est le cas dans un kit de superposition.
Liquides très chauds
Le four micro-ondes combiné permet de cuire des aliments. Ces aliments peuvent également être
liquides ou se liquéfier pendant la cuisson. Ceci a pour conséquence un risque d'échaudure par des
liquides chauds pouvant être renversés en cas de manipulation incorrecte.
Pièces sous tension (3)
Le four micro-ondes combiné comporte des pièces sous tension. Ce qui signifie danger dû aux pièces
sous tension si le capot n'est pas à sa place.
Contact avec les nettoyants
Le four micro-ondes combiné nécessite un nettoyage à l'aide de produits nettoyant spécifiques. Ceci a
pour conséquence des risques causés par des nettoyants ayant un effet en partie corrosif.
Pièces mobiles l'une par rapport à l'autre (4)
Lors de différentes activités, par ex. ouverture/fermeture de la porte de l'appareil ou nettoyage de la
porte de l'appareil, vous risquez de vous écraser ou de vous couper la main.
Interruption de la chaîne du froid
Assurez-vous que tous les aliments sont chauds avant de servir pour protéger vos hôtes de contamination microbiologique des aliments.
eikon e2s Service and Repair Manual UL
30
3 For your safety
3.6 Hazards and safety precautions when moving the appliance
Safety hazard: moving heavy weights
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of injury from overstressing your body
When moving the appliance onto and off
the moving equipment
 Use a forklift truck or pallet truck
 Do not exceed safety limits for lifting
and carrying
 Wear personal protective equipment
Safety hazard: mechanical parts of the appliance
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of body parts being
crushed if the appliance is
dropped
When moving the appliance
 Use suitable handling gear
 Move the appliance slowly and care-
fully, and secure it against tipping over
 Make sure center of gravity is balanced
 Avoid jolts
Risk of body parts being
crushed if the appliance
tips over or falls off
When placing the appliance down on the Always observe the requirements for the
supporting surface
supporting surface while setting up the
appliance; see 'Requirements for the
installation location' on page 49
eikon e2s Service and Repair Manual UL
31
3 For your safety
3.7 Hazards and safety precautions when setting up the appliance
Safety hazard: moving heavy weights
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of injury from overstressing your body
When moving the appliance
 Use a forklift truck or pallet truck to
place the appliance in the installation
position or to move it to a new position
 Always use the correct number of
persons and observe the limits specified for lifting and carrying when adjusting the appliance position
 Observe the local occupational safety
regulations
 Wear personal protective equipment
Safety hazard: mechanical parts of the appliance
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of body parts being
crushed if the appliance is
dropped
When lifting the appliance
 Make sure center of gravity is balanced
 Avoid jolts
Risk of cuts from sharp
edges
When handling sheet-metal parts
 Exercise caution when performing
these tasks
 Wear personal protective equipment
eikon e2s Service and Repair Manual UL
32
3 For your safety
3.8 Hazards and safety precautions during installing
Safety hazard: electrical power
Danger
Where or in what situations does the
hazard arise?
Risk of electric shock from  Under covers
live parts
 Under the operating panel
 Along the mains power lead
Preventive action
 Work on the electrical system must only
be performed by qualified electricians
from an authorised service company
 Professional working
Ensure that all electrical connections are
in perfect condition and fixed securely
before putting the appliance into use
Safety hazard: mechanical parts of the appliance
Danger
Trapping fingers or body
Where or in what situations does the
hazard arise?
When opening or closing the door
eikon e2s Service and Repair Manual UL
33
Preventive action
Use the handle and avoid the door hinges
3 For your safety
3.9 Hazards and safety precautions when preparing appliance for
use
Safety hazard: electrical power
Danger
Where or in what situations does the
hazard arise?
Risk of electric shock from  Under covers
live parts
 Under the operating panel
 Along the mains power lead
Preventive action
 Work on the electrical system must only
be performed by qualified electricians
from an authorised service company
 Professional working
Ensure that all electrical connections are
in perfect condition and fixed securely
before putting the appliance into use
Additional safety hazards when preparing appliance for use
When preparing the appliance for use, read and follow the safety information given in this chapter and
also the following sections in the chapter 'For your safety' on page 13 in the user manual:
 'Hazards and safety precautions during operation'
 'Hazards and safety precautions during cleaning'
eikon e2s Service and Repair Manual UL
34
3 For your safety
3.10 Hazards and safety precautions during cleaning
Safety hazard: cleaning chemicals
Danger
Where or in what situations does the
hazard arise?
Risk of chemical burns or For all cleaning actions
irritation to skin, eyes and
respiratory system from
contact with cleaning
chemicals and their fumes
Preventive action
 Do not let cleaning chemicals come
into contact with your skin or eyes
 Do not heat up the appliance if there
are cleaning chemicals inside
 Never spray cleaning chemicals into
the cavity
 Do not breathe in spray
 Wear personal protective equipment
When corrosive cleaning chemicals are
used
Only use those cleaning chemicals
specified under 'Cleaning agents' on
page 69.
Safety hazard: contamination of foodstuffs
Danger
Where or in what situations does the
hazard arise?
Risk of food contamination If the cavity has not been washed off
properly after cleaning.
from cleaning chemicals
Preventive action
Wash off the cavity using a clean cloth
and plenty of clean warm water, then
wipe with a soft cloth or paper towel.
Safety hazard: heat
Danger
Where or in what situations does the
hazard arise?
Preventive action
A risk of burns from hot
surfaces
Inside the entire cavity, including all parts  Before starting cleaning tasks, wait
that are or were inside during cooking,
until the cavity has cooled to below
such as
50°C / 122°F or use the 'cool down'
function to cool the cavity
 Racks

Wear specified protective clothing, in
 Containers, baking sheets, shelf grills
particular protective gloves
etc.
On the inside of the appliance door
Risk of scalding from hot
steam if water is sprayed
into the hot cavity
In the entire cavity
Risk of scalding from hot
steam
In front of the appliance if the cavity is
 Step back from the appliance to avoid
being cooled by the 'Cool Down' function
the hot steam and vapour escaping
through the open appliance door
 Do not put your head inside the cavity
 Before starting cleaning work, wait until
the cavity has cooled to below 50°C /
122°F or use the 'Cool Down' function
to cool the cavity
 Wear specified protective clothing, in
particular protective gloves
eikon e2s Service and Repair Manual UL
35
3 For your safety
Safety hazard: moving appliances supported on a wheeled base
Danger
Where or in what situations does the
hazard arise?
Preventive action
All specified hazards
While appliances are being moved on a
wheeled platform
When moving the microwave combination oven, take care not to wheel over the
electrical supply cables
Risk of crushing of body
parts
While appliances are being moved on a
wheeled platform
Watch out for the connecting cables
Risk of scalding from hot
liquid food
While appliances are being moved on a
wheeled platform
Always remove any food from the
appliance before moving it
Risk of electric shock from While appliances are being moved on a
wheeled platform
live parts
Watch out for connected electrical cables
Risk of tripping from
exposed cables
Exercise caution when performing this
action
While cleaning behind appliances when
pulled forward
Safety hazard: electrical power
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of electric shock
caused by a short-circuit
If the appliance comes into contact with
water
 Do not wash down the outer case with
water
 Always keep the USB cover closed
during cleaning
Risk of electric shock from If appliances on wheeled stands start
live parts
moving unintentionally and the power
supply is pulled off
 When operating the appliances, always
engage the parking brake on the
wheels
 Check that wheel brakes are on before
operation each day
Safety hazard: mechanical parts of the appliance
Danger
Where or in what situations does the
hazard arise?
Risk of crushing to hands
and pinching of fingers
When opening and closing the appliance Exercise caution when performing this
door
action
eikon e2s Service and Repair Manual UL
36
Preventive action
3 For your safety
3.11 Hazards and safety precautions during servicing and repair
Safety hazard: heat
Danger
Where or in what situations does the
hazard arise?
Preventive action
A risk of burns from hot
surfaces
Inside the entire cavity, including all parts  Before starting cleaning tasks, wait
that are or were inside during cooking,
until the cavity has cooled to below
such as
50°C / 122°F or use the 'cool down'
function to cool the cavity
 Racks
 Wear specified protective clothing, in
 Containers, baking sheets, shelf grills
particular protective gloves
etc.
On the inside of the appliance door
Safety hazard: electrical power
Danger
Where or in what situations does the
hazard arise?
Risk of electric shock from  Under covers
live parts
 Under the control panel
Preventive action
Work on the electrical system must only
be performed by qualified electricians
from an authorized customer service
company
Before removing the covers:
 Switch off all connections to the power
supply
 Take protective measures at every
power switch to ensure that the power
cannot be switched on again.
 Wait 15 minutes to allow the DC bus
capacitors to discharge
 Make sure that the appliance is
de-energized
Make sure that the electrical connections
are intact and fixed securely before
plugging the appliance back into the
power supply.
Safety hazard: mechanical parts of the appliance
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of cuts from sharp
edges
During servicing work
When handling sheet-metal parts
 Exercise caution when performing this
action
 Wear personal protective equipment
Risk of body parts being
crushed if the appliance
tips over or falls off
When the appliance is being moved e.g.
to gain better access to the connections
eikon e2s Service and Repair Manual UL
37
Always observe the requirements for the
supporting surface
3 For your safety
Safety hazard: moving heavy weights
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of injury from overstressing your body
When moving the appliance
 Use a forklift truck or pallet truck to
place the appliance in the installation
position or to move it to a new position
 Always use the correct number of
persons and observe the limits specified for lifting and carrying when adjusting the appliance position
 Observe the local occupational safety
regulations
 Wear personal protective equipment
Safety hazard: moving appliances supported on a wheeled base
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of crushing of body
parts
While appliances are being moved on a
wheeled platform
 Disconnect the appliance from the
electrical supply before moving it
 When servicing the appliances, always
Risk of hands and feet
being pinched
engage the parking brake on the
wheels
Risk of electric shock from
live parts
Safety hazard: smoke or fire
Danger
Where or in what situations does the
hazard arise?
Risk of fire / smoke from
defective electrical components or wrong electrical
connections.
If one of the electrical components is
 Never use electrical spare components
defect, for example due to a short circuit,
which failed in a dedicated test or which
or if the internal wiring is refitted incorbear visible damages.
rectly when servicing/repairing the oven.  Carefully refit electrical connections
using the wiring diagrams provided in
this manual.
eikon e2s Service and Repair Manual UL
38
Preventive action
3 For your safety
3.12 Hazards and safety precautions when taking the appliance
out of service
Safety hazard: electrical power
Danger
Where or in what situations does the
hazard arise?
Risk of electric shock from  Under covers
live parts
 Under the operating panel
Preventive action
 Work on the electrical system must only
be performed by qualified electricians
from an authorized customer service
company
 Professional working
Safety hazard: moving heavy weights
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of injury from overstressing your body
When moving the appliance onto and off
the moving equipment
 Use a forklift truck or pallet truck
 Do not exceed safety limits for lifting
and carrying
 Wear personal protective equipment
Safety hazard: mechanical parts of the appliance
Danger
Where or in what situations does the
hazard arise?
Preventive action
Risk of body parts being
crushed if the appliance
tips over or falls off
When the appliance is being moved e.g.
to gain better access to the connections
Always observe the requirements for the
supporting surface when taking the
appliance out of service; see 'Requirements for the installation site' on page 49
Risk of slipping on damp
kitchen floor
In front of the appliance
Ensure that the floor around the appliance is dry at all times
eikon e2s Service and Repair Manual UL
39
3 For your safety
3.13 Safety devices
Meaning
The microwave combination oven has a number of safety devices to protect the user from hazards. It is
absolutely essential that all safety devices are fitted and in working order when operating the appliance.
Position and function
Item
Safety device
Function
Check
1
Covers can only be
removed using a tool
 Prevents live parts from being
Check that the covers are in place
touched accidentally
 Prevents access to the moving
fan from the wiring compartment
2
Prevents live parts from being
Operating panel can
only be removed using a touched accidentally
tool
3
Door seal
Protects the user and outside
environment from microwave
energy leaking from the cavity
Check the door seal regularly for
signs of damage and replace it if
required.
4
Appliance door
Protects the user and outside
environment from hot steam and
microwave energy
Check the door regularly for
damage and replace it if required
5
(no picture)
Door interlocks:
Electric door sensor for
appliance door
Ensures that the microwave
generation system cannot be
powered when the door is open.
Check door switch:
Action:
 Open the appliance door fully
 Press Start
Result:
Door open warning message
eikon e2s Service and Repair Manual UL
40
Ensure that the operating panel is
in place
3 For your safety
Item
Safety device
Function
6
(no picture,
installed by
customer)
Disconnection device
 Installed by the customer close
7
(no picture)
Internal fuses
Prevent faulty components from
drawing too much current and
causing potential fire hazard.
eikon e2s Service and Repair Manual UL
Check
Action:
to the appliance; easily visible
 Trip the disconnection device
and accessible, 1- or 3-pole
action, minimum contact separation 3 mm.
 Used to disconnect the appliance
from the power supply during
cleaning, repair and servicing
work and in case of danger
41
Ensure that the internal fuses are
correctly rated
3 For your safety
3.14 Requirements to be met by personnel and working positions
Requirements to be met by operating personnel
Personnel
Qualifications
Tasks
Service technician




All servicing and repair work
Is an authorized service agent
Has relevant technical training
Is trained in the particular appliance
Knows the regulations associated with
handling heavy loads
Working positions during servicing and repairs
The service area for staff during servicing and repair work is the area around the appliance.
If it is not possible to obtain full access to all sides of the appliance move it to a better location following
all manual handling recommendations.
eikon e2s Service and Repair Manual UL
42
3 For your safety
3.15 Personal protective equipment
Moving and setting up the appliance
Activity
Materials used
Personal protective equipment
 Conveying within the establishment
 Setting up the appliance on a work
 Suitable lifting gear
 Forklift truck or pallet
 Protective gloves
 Safety boots
 Hard hat (e.g. when heavy loads are
surface, stand or in a stacking kit
truck
 Setting up the appliance in the installa-
being lifted, working overhead, ...)
tion location
Installation, preparing for first-time use and taking out of service
Activity
Materials used
Personal protective equipment
Installing and removing (taking out of
operation) the electrical connection
Tools and equipment
depending on the task
Work wear and personal protective
equipment depending on the job that
needs doing as specified in national
regulations
 Preparing the appliance for first-time
Tools and equipment
depending on the task
Work wear as specified in country-specific standards and directives for
kitchen work, in particular:
 Protective clothing
 Heat protective gloves
 Safety boots
 Suitable lifting gear
 Forklift truck or pallet
 Protective gloves
 Safety boots
 Hard hat (e.g. when heavy loads are
use
 Instructing the user
Dismantling the appliance (taking out of
operation)
truck
being lifted, working overhead,...)
Cleaning
Activity
Materials used
Personal protective equipment
 Cleaning the cavity by hand
 Handling spray bottles
 Cleaning chemicals
Items of protection equipment, depending on cleaning chemical being
used:
 Breathing mask
 Safety goggles
 Protective gloves
 Protective clothing/apron
The EC safety datasheet for the relevant
cleaning chemical contains a more
precise specification of these items. An
up-to-date copy can be obtained from
the manufacturer.
Refer to the label on the cleaning
chemical concerned.
Cleaning components and accessories
according to relevant instructions
Common household
detergent: mild on skin,
alkali-free, pH-neutral and
odourless
Follow the instructions given by the
manufacturer of the cleaning chemical
you are using
Cleaning the outside of the appliance
case
Common household
stainless steel cleaner or
hard surface cleaner
Follow the instructions given by the
manufacturer of the cleaning chemical
you are using
eikon e2s Service and Repair Manual UL
approved by the manufacturer
 Protective chemicals
approved by the manufacturer
43
3 For your safety
Repairs
Activity
Protection equipment
All repair work
Work wear and personal protective equipment depending on the job
that needs doing as specified in national regulations
eikon e2s Service and Repair Manual UL
44
3 For your safety
3.16 Équipement de protection individuelle
Transport et montage
Action
Moyen utilisé
 Transport au sein de l'entreprise
 Montage de l'appareil sur le plan de
 Engins de levage adaptés  Gants de protection
 Chariots élévateurs ou
 Chaussures de sécurité
transpalettes
 Casque de protection (par ex. en cas
travail, le support ou le kit de superposition
 Montage de l'appareil sur le lieu
d'installation
Équipement de protection
individuelle
de charges soulevées, travaux
au-dessus de la tête, ...)
Installation, mise en service et hors service
Action
Moyen utilisé
Équipement de protection
individuelle
Installation et désinstallation (mise hors
service) du raccordement électrique
Outillage et équipements
selon activité
Vêtements de travail et équipement de
protection individuelle en fonction de
l'activité exigée selon les consignes
nationales en vigueur
 Mise en service de l'appareil
 Formation de l'utilisateur
Outillage et équipements
selon activité
Vêtements de travail selon les normes
et directives des pays pour travailler
dans les entreprises de restauration et
les cuisines de collectivités, notamment
:
 Vêtements de protection
 Gants de protection thermique
 Chaussures de sécurité
Démontage (mise hors service) de
l'appareil
 Engins de levage adaptés  Gants de protection
 Chariots élévateurs ou
 Chaussures de sécurité
transpalettes
 Casque de protection (par ex. en cas
de charges soulevées, travaux
au-dessus de la tête, ...)
eikon e2s Service and Repair Manual UL
45
3 For your safety
Nettoyage
Action
Nettoyant utilisé
 Nettoyage de l'enceinte de cuisson à la  Nettoyant approuvé de
main
 Utilisation de bombes d'aspersion
Merrychef
 Produit d'entretien
approuvé de Merrychef
Équipement de protection
individuelle
Les éléments de l'équipement de
protection dépendent du produit de
nettoyage utilisé :
 Protection respiratoire
 Lunettes de protection
 Gants de protection
 Vêtements/tablier de protection
Vous trouverez une spécification plus
précise de ces éléments dans les fiches
techniques de sécurité des produits de
nettoyage respectifs, dont vous pouvez
vous procurer la version actuelle auprès
du fabricant. Respecter les étiquettes
des nettoyants.
Nettoyage de composants et accessoires Produit de rinçage
selon les notices respectives
ménager, préservant la
peau, non alcalin, de pH
neutre et sans odeur
Observer les indications du fabricant
respectif de produit nettoyant
Nettoyage de l'extérieur de l'appareil
Observer les indications du fabricant
respectif de produit nettoyant
Nettoyant inox ménager
Réparations
Action
Équipement de protection individuelle
Toutes les réparations
Vêtements de travail et l'équipement de protection individuelle en
fonction de l'activité exigée selon les consignes nationales en vigueur
eikon e2s Service and Repair Manual UL
46
4 Setting up the appliance
4
Setting up the appliance
Purpose of this chapter
This chapter provides information on how to set up your appliance.
This chapter is intended for the user and for a qualified member of staff from an authorized service
company.
Contents
This chapter contains the following topics:
Page
48
49
51
Safe working when setting up the appliance
Requirements for the installation location
Mounting the appliance on a work surface
eikon e2s Service and Repair Manual UL
47
4 Setting up the appliance
4.1Safe working when setting up the appliance
For your safety
Before starting work, familiarize yourself with the hazards described in 'Hazards and safety precautions
when setting up the appliance' on page 32.
Eligibility of personnel for setting up the appliance
Personnel eligible for setting up the appliance:
 Only qualified personnel from an authorized service company are permitted to set up the appliance.
Regulations for setting up the appliance
Local and national standards and regulations relating to workplaces in catering kitchens must be
observed.
The rules and regulations of the local authorities and supply companies that apply to the installation
location concerned must be observed.
Personal protective equipment
Wear the following personal protective equipment specified in the section 'Personal protective equipment' on page 43 of the 'For your safety‘ chapter for the relevant tasks.
Moving heavy loads
Risk of injury from lifting incorrectly
When lifting the appliance, the weight of the appliance may lead to injuries, especially in the area of the
torso.
 Use a forklift truck or pallet truck to place the appliance in the installation position or to move it to a
new position.
 When shifting the appliance into the correct position, use enough people for the weight of the
appliance when lifting it (value depending on age and gender). Observe the local occupational
safety regulations.
 Wear personal protective equipment.
Unsuitable supporting surface
Risk of crushing if the appliance tips over or falls off
Body parts can be crushed if the appliance tips over or falls off.
 Make sure that the appliance is never placed on an unsuitable supporting surface.
eikon e2s Service and Repair Manual UL
48
4 Setting up the appliance
4.2 Requirements for the installation location
Meaning
This section contains information to help you choose a suitable installation location for the microwave
combination oven. Inspect the intended installation location carefully to ensure it is suitable before taking
the appliance there and starting the installation.
Rules for setting up the appliance safely
To prevent hazards that arise from the installation site and environment of the appliances, the following
rules must be observed:
 It must be possible to comply with the operating conditions. For operating conditions, see 'Requirements relating to the operating environment of the microwave combination oven' on page 23.
 There is a risk of fire from the heat emitted from hot surfaces. Therefore flammable materials, gases
or liquids must not be located near, on or below the appliance. When choosing where to install the
appliance it is essential to remember this requirement together with the minimum space required for
the appliance.
 Heat sources in the vicinity must lie at a minimum distance of 500 mm / 20 in.
 The appliance must be installed so that there is absolutely no possibility that liquid from the appliance
or liquid coming from cooking processes can reach deep-fat fryers or appliances that use hot, uncovered fat. Deep-fat fryers or appliances that use hot, uncovered fat that are located in the vicinity
must lie at a minimum distance of 500 mm / 20 in.
 The appliance must not be installed directly under a fire alarm or sprinkler system. Fire alarm installations and sprinkler systems must be set up to handle the level of steam and vapour expected to
escape from the appliance when the door is opened.
 It must be possible to set up the supporting structure for the appliance (work surface, stand or
stacking kit) in the installation position so that it cannot tip over or slide about. The supporting surface
must satisfy the requirements listed below.
 Vibrations must generally be avoided when using wheeled oven stands or wheeled stacking kits.
Requirements for the supporting surface
The supporting surface must have the following properties:
 The supporting surface must be flat and level.
 The supporting surface must be able to bear the in-use weight of the appliance plus the weight of the
structure supporting the appliance.
 The structure supporting the appliance (work surface or stand) must be able to bear the in-use weight
of the appliance.
Empty weight of appliance
e2s High Power version
[lbs]
134
[kg]
61.0
e2s Standard Power version
[lbs]
114
[kg]
51.7
Actual space requirements
Far more room than the specified minimum space requirement is needed in front of the appliances to
operate the microwave combination ovens safely, in particular to handle hot food safely.
Larger wall gaps are generally recommended to provide access for servicing.
Ventilation is not required but local codes prevail. These are the "authority having jurisdiction" as stated
by the NATIONAL FIRE PROTECTION ASSOCIATION, INC. in NFPA 96, latest edition.
In the installation location, the following parts must not be covered, adjusted or blocked (see also
'Design and function of the microwave combination oven' on page 11):
 Air vent on the rear of the appliance
 Air filter at the front of the appliance
eikon e2s Service and Repair Manual UL
49
4 Setting up the appliance
Minimum space required
The following diagram and table show the space required for the appliance for different installation and
operating situations. They also show the minimum horizontal distances from adjacent walls and surfaces. The safety clearance on the top must always be complied with.
Meaning
Space required
A
Safety clearance from the top
[in]
2
[mm]
50
B
Depth requirement, appliance door open at 90°
[in]
12.2
[mm]
310
C
Installation height
[in]
36
[mm]
916
Safety clearance on left-/right-hand side / at rear
[in]
0
[mm]
0
eikon e2s Service and Repair Manual UL
50
4 Setting up the appliance
4.3 Mounting the appliance on a work surface
Rules for setting up the appliance safely
Observe the following rules to ensure that the appliance is installed in a stable situation:
 It must be possible to set up the work surface in the installation position so that it cannot tip over or
slide about. The supporting surface must comply with the requirements.
 The work top must have a non-slip surface.
eikon e2s Service and Repair Manual UL
51
5 Installation
5
Installation
Purpose of this chapter
This chapter explains how to connect your microwave combination oven to the electrical supply.
Contents
This chapter contains the following topics:
Page
53
54
Safe working during electrical installation
Planning the electrical installation
eikon e2s Service and Repair Manual UL
52
5 Installation
5.1 Safe working during electrical installation
For your safety
Before starting work, familiarize yourself with the hazards described in 'Hazards and safety precautions
during installation' on page 33.
Eligibility of personnel for the electrical installation
Only electricians qualified under the terms of EN 50110-1 and from an authorized service company are
permitted to perform work on electrical equipment.
Regulations for the electrical installation
Observe the following requirements to prevent hazards caused by faulty electrical connections:
 The electrical supply must be connected in accordance with applicable local and national regulations
and regulations of the professional associations and of the relevant power supply company.
 USA: When installed, this appliance must be electrically grounded and its installation must comply
with the National Electric Code, ANSI-NFPA 70, latest edition, the Manufacturer's installation instructions and applicable municipal building codes.
 CANADA: All electrical connections are to be made in accordance with CSA C22.1 - Canadian
Electrical Code Part 1 and/or local codes.
Consignes relatives à l'installation électrique
Afin d'exclure les mises en danger survenant en raison de raccordements électriques défectueux,
observer les consignes suivantes :
 Le raccordement à l'alimentation électrique doit être effectué conformément à les normes locales et
nationales d'installation électrique et à toutes les autres prescriptions et lois nationales et fédérales
fondamentales ainsi qu'aux prescriptions locales des fournisseurs d'énergie locaux, des associations
professionnelles et des autorités.
 AUX ÉTATS-UNIS: Lors de l’installation, cet appareil doit etre mise en terre (grounded) et doit se
conformer au Code électrique national, ANSI/NFPA 70, dernière édition. Suivre les instructions
d’installation du fabriquant, et les codes de bâtiment municipaux applicables.
 AU CANADA: Toutes les connexions électriques sont conformément faites a CSA C22.1. Le code
d’électricité canadien sépare 1 et/ou les codes locaux.
Personal protective equipment
Wear the personal protective equipment specified in the section 'Personal protective equipment' on
page 43 of the 'For your safety‘ chapter for the relevant tasks.
Live components
Risk of electric shock from live parts
If the power cord is damaged, there is a risk of electric shock from touching live wires.
 Make sure that the power cord and electrical connections are intact and connected securely before
putting the appliance into use.
 Make sure that any work on the electrical system is performed solely by a qualified electrician from
an authorized service company.
eikon e2s Service and Repair Manual UL
53
5 Installation
5.2 Planning the electrical installation
Meaning
It is crucial to the safe and reliable operation of the appliance that the electrical system is installed
carefully and correctly. All the rules and regulations listed here, and the described procedure, must be
strictly followed.
Rules for safe electrical installation of the appliances
Observe the following rules to prevent hazards caused by faulty electrical connections:
 The electrical supply must be connected in accordance with applicable local regulations of the
professional associations and of the relevant power supply company.
 The case of the appliance must be grounded in a suitable manner.
 If two microwave combination ovens are installed in a stacking kit, both cases of the appliances and
the stacking kit itself must be grounded in a suitable manner.
 For microwave combination ovens on a wheeled platform, the length of the mains power lead must
accommodate the degree of movement allowed to the appliance by the retaining device on the
wheeled platform. When moving the assembly (platform plus appliance), never place the mains
power lead under tension.
 All electrical connections must be checked when the appliance is prepared for first-time use to ensure
cables are laid correctly and connections are made properly.
Equipment provided by customer and electrical installation regulations
The table below shows what equipment must be provided by the customer and what regulations must be
observed when connecting the appliance.
Equipment
Regulations
Fuse
Fuse protection and connection of the appliance must comply with local regulations
and national installation requirements.
Ground fault circuit interrupter (GFCI)
The installation regulations require protection by a ground fault circuit interrupter
(GFCI). Suitable GFCIs meeting the relevant national regulations must be used.
If the installation includes more than one appliance, one GFCI must be provided for
each appliance.
Disconnection device
An easily accessible all-pole disconnection device with a minimum contact separation of 3 mm must be installed close to the appliance. The appliance must be
connected via this disconnection device.
The disconnection device is used to disconnect the appliance from the electrical
supply for cleaning, repair and installation work.
eikon e2s Service and Repair Manual UL
54
5 Installation
GROUNDING INSTRUCTIONS
IMPROPER USE OF THE GROUNDING PLUG CAN RESULT IN A
RISK OF ELECTRIC SHOCK.
For all cord-connected appliances:
GROUNDING INSTRUCTIONS
This appliance must be grounded. In the event of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric current. This appliance is equipped with a cord
having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly
installed and grounded.
Consult a qualified electrician or service technician if the grounding instructions are not completely
understood, or if doubt exists as to whether the appliance is properly grounded.
Do not use an extension cord. If the power supply cord is too short, have a qualified electrician or service
technician install an outlet near the appliance.
INSTRUCTIONS POUR LA MISE À LA TERRE
CET APPAREIL DOIT ÊTRE MIS À LA TERRE. LE MANQUEMENT À
CETTE RÈGLE PEUT RÉSULTER EN DES CHOCS ÉLECTRIQUES
POUVANT CAUSER LA MORT.
Pour tous les appareils avec cordon:
INSTRUCTIONS POUR LA MISE À LA TERRE
Cet appareil doit être mis à la terre. Si un court-circuit électrique survient, la mise à la terre réduit les
risques de chocs électriques en offrant un conducteur de fuite pour le courant électrique. Cet appareil
est équipé d’un cordon ayant un conducteur de mise à la terre et d’un connecteur ayant une broche de
mise à la terre. Le connecteur doit être branché à une prise de courant installée et mise à la terre
correctement.
Une méthode inadaptée de mise à la terre peut causer des risques de chocs électriques. Consulter un
électricien ou un technicien de service qualifié si les directives portant sur la mise à la terre ne sont pas
comprises ou si un doute existe si oui ou non l’appareil est mis à la terre correctement.
Ne pas utiliser de cordon prolongateur. Si le cordon d’alimentation est trop court, demander à un
électricien ou un technicien qualifié d’installer une nouvelle prise de courant près de l’appareil.
eikon e2s Service and Repair Manual UL
55
5 Installation
Plug types
Power Supply Configuration (refer to nameplate)
Model
e2S**MV6********
Plug Type
NEMA 6-30P
Plug Type
NEMA L6-30P
Model
e2S**MV6********
Plug Type
NEMA 6-20P
Model
e2S**MV6********
Plug Type
NEMA L6-15P
208V / 240V AC, 60Hz, 30Amp, 2P + GND
(High Power version)
208V / 240V AC, 60Hz, 20Amp, 2P + GND
(Standard Power version)
208V / 240V AC, 60Hz, 15Amp, 2P + GND
(Standard Power version)
Suitably rated Branch Circuit Protection must be provided in accordance with applicable Local Electrical Code.
Un protecteur de circuit approuvé doit être utilisé selon les normes locales d’installation électrique.
Fitted variable frequency drive
The appliance features one variable frequency drive (VFD) and an EMC mains input filter.
This equipment can result in a leakage current of 0.75 mA max. per VFD.
Use an appropriate GFCI as required for the relevant rated voltage.
Ground fault circuit interrupter properties
The ground fault circuit interrupter (GFCI) must have the following properties:
 High-frequency current filtering
 "Time-delayed trip" characteristic trip curve for GFCIs with a trip threshold >30mA: Prevents GFCIs
from tripping as a result of capacitances and capacitance-related disturbances when the appliance is
switched on.
 “Si-type leakage current protection” characteristic trip curve for GFCIs with a trip threshold equal to or
greater than 30mA: Prevents nuisance tripping.
Circuit Breakers
Establishments with standard (Type ‘B’) circuit breakers are sensitive to ‘surges’ which occur on
switching on freezers, refrigerators and other catering equipment, including microwave combination
ovens. Because of this, a Type ‘D’ circuit breaker (designed specifically for this type of equipment) must
be fitted. An individual, suitably rated circuit breaker should be fitted for each appliance installed.
eikon e2s Service and Repair Manual UL
56
6 Preparing the appliance for use
6
Preparing the appliance for use
Purpose of this chapter
This chapter shows you how to put the microwave combination oven into operation and how to cook.
Contents
This chapter contains the following topics:
Safe working when preparing the appliance for use
Procedure for preparing the appliance for use
Start page
The keyboard screen
Using a USB stick
eikon e2s Service and Repair Manual UL
57
Page
58
61
64
65
66
6 Preparing the appliance for use
6.1 Safe working when preparing the appliance for use
For your safety when preparing the appliance for use
Before starting work, make sure that you are familiar with the hazards described under 'Hazards and
safety precautions when preparing appliance for use' on page 34 and in the chapter 'For your safety' in
the user manual.
Eligibility of personnel preparing the appliance for use and taking it out of service
Work performed on the appliance while preparing it for use is performed in special operating circumstances (e.g. with safety covers removed) or includes activities that require personnel to have relevant
qualifications and appliance-specific knowledge that exceed the requirements for operating personnel.
The following requirements must be met by personnel:
 They are qualified employees of an authorized service company.
 Personnel have relevant training as a service engineer.
 Personnel have training specific to the appliance.
Personal protective equipment for preparing the appliance for use
Wear the personal protective equipment specified in the section 'Personal protective equipment' on
page 43 of the 'For your safety‘ chapter for the relevant tasks.
Rules for safe operation of the appliance
To avoid hazards, the following rules must be observed during operation:
 The exhaust vent on the rear of the appliance, and the ventilation holes in the front of the appliance
base must not be covered, obstructed or blocked.
 Ensure all appropriate accessories are fitted.
To avoid hazards, the following rules must be observed when operating appliances positioned on a
wheeled supporting structure:
 The parking brakes on the front wheels must always be engaged when operating the appliances.
 Check that the wheel brakes are on before operation each day.
Live components
Risk of electric shock from live parts
If the power cord is damaged, there is a risk of electric shock from touching live wires.
 Make sure that the power cord and electrical connections are intact and connected securely before
putting the appliance into use.
 Make sure that any work on the electrical system is performed solely by a qualified electrician from
an authorized service company.
Hot surfaces
Risk of burns from high temperatures inside the cavity and on the inside of the appliance door
 You may get burnt if you touch any of the interior parts of the cooking chamber, the inside of the
appliance door or any parts that were inside the oven during cooking.
 Wear personal protective equipment.
eikon e2s Service and Repair Manual UL
58
6 Preparing the appliance for use
Hot steam / vapour
Risk of scalding from hot steam and vapour
 When opening the door, always be cautious of escaping hot steam and vapour which can cause
scalding to face, hands, feet and legs.
 When you are cooling the cavity using the ‘cool down’ function, step back from the appliance to
avoid the hot steam and vapour escaping through the open door.
Excessive microwave energy
Risk of burns from excessive microwave energy
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
 Do not attempt to operate this oven with the door open since open-door operation can result in
harmful exposure to microwave energy. It is important not to defeat or tamper with the safety interlocks.
 Do not place any object between the oven front face and the appliance door or allow soil or cleaner
residue to accumulate on sealing surfaces.
 Do not operate the oven if it is damaged. It is particularly important that the oven door closes
properly and that there is no damage to the (1) door (bent), (2) hinges, (3) door seals and sealing
surfaces.
 The oven should not be adjusted or repaired by anyone except properly qualified service personnel.
Radio interference
NOTICE
This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
IN CASE OF RADIO OR TELEVISION INTERFERENCE
This equipment generates and uses radio frequency energy and if not installed and operated correctly,
in strict accordance with the manufacturer’s instructions, may cause harmful interference to authorized
radio communication services.
This product complies with the relevant requirements of CFR 47 Ch.1 Part 18, which are designed to
provide reasonable protection against such interference. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
1) Re-orientate the receiving antenna.
2) Relocate the microwave combination oven with respect to the receiver.
3) Plug the microwave combination oven into a different outlet so that the receiver and microwave
combination oven are on different branch circuits.
If necessary the user should consult the dealer or an experienced radio/television technician for additional suggestions.
NOTE: Modifications should only be carried out by the manufacturer or authorized representative to
ensure continuing conformance.
This device complies with Part 18 of the FCC rules.
eikon e2s Service and Repair Manual UL
59
6 Preparing the appliance for use
Interférences radio
REMARQUE
Ce produit appartient à la classe A. Dans un environnement domestique, ce produit est susceptible de
provoquer des interférences radio, auquel cas l'utilisateur peut être amené à prendre les mesures
adéquates.
EN CAS D’INTERFÉRENCES DANS LES SIGNAUX DE RADIO/ TÉLÉVISION
Cet équipement génère et utilise de l’énergie FR et s’il n’est pas installé et utilisé correctement, en
stricte conformité avec les directives du fabricant, il peut générer de l’interférence nuisible aux services
de communication radio autorisés. Ce produit est conforme aux exigences applicables de la Clause 18,
du Chapitre 1 du CFR 47, qui sont conçus pour assurer une protection raisonnable contre de telles
interférences. Cependant, il n’existe aucune garantie que des interférences ne surviendront pas dans
une installation donnée. Si cet équipement cause de l’interférence à la réception des signaux radio/télévision, ce qui peut être facilement déterminé en commutant l’équipement en/hors circuit, nous
recommandons à l’utilisateur de tenter d’éliminer l’interférence en utilisant une ou plusieurs des
méthodes suivantes :
1) Réorienter l’antenne de réception.
2) Relocaliser le four à micro-ondes relativement au récepteur.
3) Brancher le four à micro-ondes à une prise différente de celle du récepteur pour que le four à
micro-ondes et le récepteur s’alimentent à des circuits électriques différents.
Au besoin, l’utilisateur devrait consulter son fournisseur ou un technicien radio/télévision expérimenté
pour obtenir des suggestions supplémentaires.
REMARQUE : Les modifications ne doivent être effectuées que par le fabricant ou par un représentant
autorisé pour assurer le maintien de la conformité.
Cet appareil est conforme à la Section 18 des règlements de la FCC.
eikon e2s Service and Repair Manual UL
60
6 Preparing the appliance for use
6.2 Procedure for preparing the appliance for use
Checks prior to preparing the appliance for use
Before preparing the microwave combination oven for use use the checklists below to make sure that all
important requirements are met. The appliance must not be put into operation until all the specified
requirements are met.
Checklist for moving, setting up and installing the appliance:
 Cardboard packaging and transport securing devices etc. have been removed completely from the
appliance.
 The appliance has no signs of damage.
 The appliance has been set up so that it cannot slide about or tip over; the requirements for the
installation position and the area around the appliance have been met.
 The appliance is installed in accordance with the installation regulations.
Checklist for safety devices and warnings:
 All safety devices are in their designated position, are working correctly and are secured properly in
place.
 All warning signs are in their designated position.
Suitable cooking utensils
Check the manufacturer’s instructions and temperature rating to determine the suitability of individual
containers or utensils using each of the cooking functions. The following chart provides general
guidelines:
Cooking utensils
Permitted
Notice
Heat resistant containers
Toughened glass
YES
Compatible vitreous ceramics
YES
Earthenware (porcelain, crockery, china, etc.)
YES
Do not use items with metallic decoration.
Metallic and foil trays
Any metal or foil containers
NO
Plastic containers
Dual-ovenable plastic containers
YES
Use only plastic containers approved by the
manufacturer.
YES
Use only combustibles approved by the manufacturer.
Disposables
Combustibles (paper, card, etc.)
Other utensils
Tie tags
NO
Cutlery
NO
Temperature probes
NO
eikon e2s Service and Repair Manual UL
61
No kitchen utensil should be left in a food product
while it is cooking in the cavity.
6 Preparing the appliance for use
Ustensiles de cuisson appropriés
Les directives du fabricant devraient être consultées pour déterminer l’adéquation de chaque contenant
et ustensile individuel pour chacune des fonctions de la cuisson. Le tableau suivant présente les
directives générales :
Ustensiles de cuisson
Approprié
Remarque
Contenants résistant à la chaleur
Verre trempé
OUI
Céramique vitreuse compatible
OUI
Grès, faïence (porcelaine, poterie, etc.)
OUI
Ne pas utiliser d’articles portant des décorations
métalliques.
Plateaux métalliques et de feuilles métalliques
Contenants métalliques et de feuilles métalliques
NON
Contenants de plastique
Contenants de plastique utilisables dans les
deux types de fours
OUI
Utilisez uniquement des contenants de plastique
approuvés par Merrychef.
OUI
Utilisez uniquement des combustibles approuvés par Merrychef.
Contenants jetables
Combustibles (papier, carton, etc.)
Autres ustensiles
Attaches-étiquettes
NON
Coutellerie
NON
Capteurs thermiques
NON
eikon e2s Service and Repair Manual UL
62
Aucun ustensile de cuisine ne doit être laissé
dans les aliments pendant qu’ils cuisent dans le
four.
6 Preparing the appliance for use
Start up
1.
Make all the relevant safety checks and ensure the appliance is
clean and empty.
Then switch the appliance ON.
2.
The easyToUCH screen illuminates with the display briefly
showing the serial number and appliance data.
If required, to keep the data on the screen, lightly tap the screen
once to freeze the display. Tap again to continue.
3.
When the appliance is set up with two or more preheating
temperatures a choice is displayed.
Scroll arrows at the bottom of the screen indicate that there are
more temperature choices not shown on the screen.
If necessary, use the scroll arrows. Then select the temperature
required to start preheating the cavity.
4.
During preheating the display shows the progress as the cavity
heats up to the set temperature.
To stop the cavity heating up touch the red ‘X’ symbol at the
bottom of the screen.
5.
The appliance is ready to use when the 'cookbook' is displayed.
®
Customer guidance and instruction
Instruct the user regarding all safety-related functions and devices.
Instruct the user in how to operate the appliance.
eikon e2s Service and Repair Manual UL
63
6 Preparing the appliance for use
6.3 Start page
Appearance
The buttons and what they do
Button
Meaning
Function
Development Mode
'Development Mode' enables multistage cooking profiles to
be developed, then stored under a name and symbol for
reuse.
Press&Go
'Press&Go' allows quick access to use the cooking profiles
that are already stored.
Cookbook
'Cookbook' contains the cooking profiles stored in the
memory of the appliance. It displays favourites, cooking
profile groups and a complete listing of all cooking profiles
available.
Cleaning / Temp change
'Cleaning / Temp change' allows the cavity temperature to
be changed and the appliance to be prepared for cleaning
with reminders displayed to assist during the cleaning
process.
Settings
'Settings' are used to control the appliance settings and
functions including time and language, loading cooking
profiles and for service and maintenance purposes.
®
The easyToUCH screen display
®
The easyToUCH screen display, layout and icons shown herein are for guidance purposes only and are
not intended to be an exact representation of those supplied with the appliance.
eikon e2s Service and Repair Manual UL
64
6 Preparing the appliance for use
6.4 The keyboard screen
Appearance
The buttons and their functions
Button
Meaning
Function
Keyboard screen
Keyboard screen is used to enter an authorised password
to enter data for programs and may restrict operator access
to some functions.
Clear screen
Clear screen
Keyboard
Keyboard
Spacebar
Spacebar
Return
Return
Keyboard scroll
Keyboard scroll
Enter / OK
Enter / OK
Previous screen
Previous screen
Character length
 For names of cooking profiles, names of cooking profile groups and passwords use 1-20 characters in
2 lines max.
 For stage instructions of individual cooking profiles use 1-54 characters in 5 lines max.
eikon e2s Service and Repair Manual UL
65
6 Preparing the appliance for use
6.5 Using a USB stick
Purpose of the USB cover
The USB cover protects the USB port so that no water vapour can get into the control electronics during
cooking or cleaning.
During cooking and cleaning, there must not be a USB stick inserted and the USB port must be closed
by the cover.
USB programs
IMPORTANT:
Downloading from a USB memory stick will clear all the existing programs in the memory of the appliance.
Check that the key has the correct number/code for the programs you want to load into the memory (1
‘.cbr’ + ‘autoupd.ate’).
1.
Switch the appliance OFF.
Open the cover to the USB port on the control panel.
2.
Plug in the USB memory stick.
If the USB memory stick is too large, use a standard commercial
adapter cable.
eikon e2s Service and Repair Manual UL
66
6 Preparing the appliance for use
3.
Switch the appliance ON.
The files automatically download from the USB memory stick
showing the progress and confirmation screens for the update.
4.
On completion the appliance displays the start up screen.
Then the thermometer symbol is displayed.
Remove the USB memory stick and keep it in a safe place.
eikon e2s Service and Repair Manual UL
67
7 Cleaning procedures
7
Cleaning procedures
Purpose of this chapter
This chapter summarizes the cleaning methods, the cleaning chemicals and how to handle them and the
cleaning instructions. It explains the correct procedure to follow when cleaning the microwave combination oven.
Contents
This chapter contains the following topics:
Page
69
69
70
71
73
Daily cleaning tasks
Cleaning chemicals
Items required for cleaning
Safe working when cleaning
Cleaning procedures
eikon e2s Service and Repair Manual UL
68
7 Cleaning procedures
7.1 Daily cleaning tasks
What must be cleaned?
Procedure
Cleaning chemicals
Cavity
Clean by hand with a soft cloth /
paper towel
Cleaning and protective chemicals
approved by the manufacturer
Outside of appliance
Clean by hand with a soft cloth
Common household stainless steel
cleaner or hard surface cleaner
Containers, baking sheets, shelf
 Clean by hand with a soft
grills and other accessories used for
non-abrasive sponge
cooking
 Rinse off after with water
Common household detergent
7.2 Cleaning chemicals
Cleaning chemicals
Use solely the cleaning chemicals specified here to clean the microwave combination oven and its
accessories.
Product
Use
Merrychef Cleaner
Cleaning the cavity and appliance door
Merrychef Protector
Protecting the cavity and appliance door
Common household stainless steel cleaner or
hard surface cleaner
Caring for the external surfaces of the microwave combination oven
Common household detergent: mild on skin,
alkali-free, pH-neutral and odourless
 Cleaning components and fittings according to
relevant instructions
 Cleaning containers, baking sheets, shelf grills
and other accessories used for cooking
Handling the cleaning chemicals
You must wear personal protective equipment when using certain cleaning chemicals.
Follow the instructions given in the chapter 'Personal protective equipment' on page 43 and the current
safety datasheets pertaining to cleaning and protective chemicals recommended by the manufacturer.
Personnel must be trained regularly by the person responsible for the microwave combination oven.
eikon e2s Service and Repair Manual UL
69
7 Cleaning procedures
7.3 Items required for cleaning
Items required for cleaning
 Merrychef cleaning chemical
 Merrychef protective chemical






Protective rubber gloves
Non-abrasive nylon scrub pad
Cleaning towel and cloths
Eye protection
Heat proof gloves (optional)
Dust mask (optional)
NOTICE
 Never use sharp implements or harsh abrasives on any part of the appliance.
 Do not use tools.
 Do not use caustic cleaners on any part of the appliance or cavity. It will cause permanent damage to
the catalytic converters.
REMARQUE
 Ne pas utiliser d'outils pointus ou des abrasifs rudes sur aucune partie du four.
 Ne pas utiliser d'outils.
 Ne pas utiliser d'agents nettoyeurs caustiques sur aucune partie du four ou de la cavité puisqu'ils
causeront des dommages permanents aux convertisseurs catalytiques.
eikon e2s Service and Repair Manual UL
70
7 Cleaning procedures
7.4 Safe working when cleaning
Your safety and the safety of your staff
Before your personnel start working with the microwave combination oven for the first time, familiarize
yourself with the information contained in the chapter 'For your safety' on page 13 and make relevant
safety arrangements.
Instruct your personnel to learn the safe-working rules given in this section before starting work, and to
follow them strictly.
Instruct your personnel to familiarize themselves with the hazard warnings listed in this section and in
further instructions below, and instil in them the importance of taking the specified precautions.
Personal protective equipment for your personnel
Instruct your personnel to wear the correct personal protective equipment specified in the section
'Personal protective equipment' on page 43 of the 'For your safety' on page 13 chapter for the relevant
tasks.
Rules for moving and setting up the wheeled trolley safely
To avoid hazards, the following rules must be observed when moving the wheeled trolley that carries the
appliances (optional accessory):
 Watch out for all connecting cables when moving appliances. Never wheel over the connecting
cables. Never stretch let alone pull off the connecting cables.
 The appliances must be disconnected from the electrical supply before moving the stacking kit
(optional accessory).
 The appliances must be left to cool down on the trolley before being moved.
 There must not be any food left in the appliances.
 The appliance door must be closed.
 Protective clothing must be worn if the appliance is mounted on a trolley.
 It is important to ensure that the unit is level once is back in place.
 Once the unit is back in place, the parking brakes must be engaged again.
 Whatever the position, care must be taken to ensure that the trolley carrying the appliance does not
tip over.
Spraying down the appliance with water
Risk of electric shock from live parts
Water on the exterior of the appliance can cause a short-circuit, which may result in electric shock on
touching the appliance.
 Do not spray the interior and exterior of the appliance with water.
 Always keep the USB cover closed during cleaning.
Hot surfaces
Risk of burns from high temperatures on interior parts of the appliance
You may get burnt if you touch any of the interior parts of the cavity, the inside of the appliance door or
any parts that are or were inside the oven during cooking.
 Before starting cleaning tasks, wait until the cavity has cooled to below 50°C / 122°F or use the
Cool Down function to cool the cavity.
 Wear personal protective equipment.
eikon e2s Service and Repair Manual UL
71
7 Cleaning procedures
Spraying water into a hot cavity
Risk of scalding from hot steam
If water is sprayed into the hot cavity, steam will be produced that may scald.
 Before starting cleaning tasks, wait until the cavity has cooled to below 50°C / 122°F or use the
'Cool Down' function to cool the cavity.
Contact with cleaning chemicals
Risk of irritation to skin, eyes and respiratory system.
Direct contact with the cleaning or protective chemicals will irritate the skin, eyes and respiratory
system.
 Do not inhale the vapours or spray mist from the cleaning and protective chemicals.
 Do not let the cleaning or protective chemicals come into contact with skin, eyes or mucous membranes.
 Do not spray cleaning or protective chemicals into a cavity.
 Wear personal protective equipment.
eikon e2s Service and Repair Manual UL
72
7 Cleaning procedures
7.5 Cleaning procedures
Cleaning the microwave combination oven
This section explains how to clean your microwave combination oven.
Contents
This section contains the following topics:
Page
74
76
Cool down procedure before cleaning
Cleaning instructions
eikon e2s Service and Repair Manual UL
73
7 Cleaning procedures
7.5.1 Cool down procedure before cleaning
For your safety when cleaning
Before starting cleaning work, it is essential that you familiarize yourself with the rules and hazard
warnings specified in 'Safe working when cleaning' on page 71, and follow the instructions given there.
Purpose
With the optional 'cool down' function you can cool down the cavity quickly for cleaning your microwave
combination oven sooner.
Cooling down the cavity
1.
In 'Full Serve mode', select the 'cleaning' symbol from the main
menu.
2.
In 'Full' or 'Quick Serve mode', select the 'blue thermometer'
symbol to disable heating and to start the cooling cycle.
A prompt appears.
OR
eikon e2s Service and Repair Manual UL
74
7 Cleaning procedures
3.
Taking all necessary precautions place a suitable tray of ice
cubes into the hot cavity. This speeds up the cooling process.
Press the green tick to continue.
4.
The cooling progress is displayed and takes approximately 20
minutes.
To reduce the cool down time to about 20 minutes leave the
appliance door open slightly during the cooling process.
5.
Once the cooling process is complete, carefully remove the cool
down pan from the cavity wearing protective gloves.
6.
The oven is now ready for cleaning.
eikon e2s Service and Repair Manual UL
75
7 Cleaning procedures
7.5.2 Cleaning instructions
For your safety when cleaning
Before starting cleaning work, it is essential that you familiarize yourself with the rules and hazard
warnings specified in 'Safe working when cleaning' on page 71, and follow the instructions given there.
Requirements for cleaning the appliance
 The appliance is cool.
 No food has been left in the cavity.
 All containers, baking sheets, shelf grills and any other accessories have been removed from the
cavity.
Cleaning the oven and oven parts
1.
Open the appliance door and remove the cook plate / wire rack
and any other cooking vessels from the cavity.
CAUTION: Wear protective glasses and protective rubber gloves
during the cleaning procedure.
2.
Wash all removed oven parts in warm soapy water.
Wash off using a clean cloth and plenty of clean, warm water.
Dry all components using a fresh, clean cloth.
3.
Remove any spillages with suitable cloth or paper towel.
Use a dry clean brush to remove any food particles from between
the cavity floor and the inside of the front door.
4.
Carefully spray cleaning chemical approved by Merrychef onto a
sponge.
Clean all surfaces of the cavity except the door seal.
NOTICE: Do not spray directly into the cavity.
eikon e2s Service and Repair Manual UL
76
7 Cleaning procedures
5.
For difficult areas, leave to soak for 10 minutes with the appliance
door open.
Use a non-abrasive nylon scrub pad/sponge to clean all surfaces
of the cavity including the roof and the inside surface of the
appliance door.
NOTICE: Do not scrub the door seal or use metallic scourers.
6.
Wash off all surfaces using a wet clean cloth.
Dry using a fresh, clean cloth or paper towel.
7.
Replace the cleaned cook plate / wire rack.
Double-check that all components are dry before re-fitting them.
8.
Close the appliance door.
9.
Wipe the outside of the appliance with a damp cloth.
NOTE: Do not use the appliance without a clean air filter in place.
10.
eikon e2s Service and Repair Manual UL
Press the green check mark to continue.
77
7 Cleaning procedures
Applying the protective chemical, cleaning the air filter
1.
After completing the cleaning procedures press the green tick to
confirm that the cavity has been cleaned.
You can then apply a protective chemical to make cleaning easier
the next day (optional).
2.
Spray protective chemical approved by Merrychef onto a clean
sponge.
NOTICE: Only apply the protective chemical to a clean appliance.
3.
eikon e2s Service and Repair Manual UL
Spread the protective chemical lightly onto all internal surfaces of
the appliance avoiding the door seal.
78
7 Cleaning procedures
4.
Replace all mobile parts into the cavity that had been removed for
cleaning.
5.
Close the appliance door.
6.
Press the green check mark to confirm application of the protective chemical.
A prompt appears asking to clean the air filter.
7.
Tilt the faceplate below the appliance door downwards.
eikon e2s Service and Repair Manual UL
79
7 Cleaning procedures
8.
Remove the air filter.
9.
Clean the air filter with a damp cloth.
10.
Replace the air filter and tilt the faceplate in its original position.
11.
Clean the oven exterior with a damp cloth.
12.
Press the green check mark to confirm cleaning of the air filter.
The oven switches OFF.
13.
Switch ON the appliance.
If the air filter has not been replaced the screen will display a
warning. Replace the air filter and then press the green tick to
continue.
14.
Preheat the cavity.
Once reaching the preset operating temperature it will take about
30 minutes to cure the protective chemical.
The protective chemical turns light brown when cured.
eikon e2s Service and Repair Manual UL
80
8 Technical data
8
Technical data
Purpose of this chapter
This chapter contains the technical data for your microwave combination oven.
Contents
This chapter contains the following topics:
Page
82
84
Technical data
Dimensional drawings
eikon e2s Service and Repair Manual UL
81
8 Technical data
8.1 Technical data
Dimensions and weights
Width
Including packaging
[in]
21.1
[mm]
535
Appliance without packaging
[in]
14.0
[mm]
356
Height
Including packaging
[in]
33.5
[mm]
850
Appliance ("Classic" exterior) without packaging
[in]
24.4
[mm]
620
Appliance ("Trend" exterior) without packaging
[in]
25.4
[mm]
644
Including packaging
[in]
35.3
[mm]
895
Appliance without packaging, door closed
[in]
25.0
[mm]
636
High Power version, including packaging
[lbs]
155
[kg]
70.4
High Power version, excluding packaging
[lbs]
134
[kg]
61.0
Standard Power version, including packaging
[lbs]
135
[kg]
61.1
Standard Power version, excluding packaging
[lbs]
114
[kg]
51.7
Rear / right / left
[in]
0
[mm]
0
Top (for ventilation)
[in]
2
[mm]
50
Depth
Weight
Safety clearances
Electrical connected load ratings – High Power version
Electrical supply
2~ 208V / 240V
60Hz
Connections used
2P + GND
Arrangement
Two Pole
Rated power
consumption
[W]
6000
Rated current per phase
[A]
30
Rated power output
convected heat
[W]
2200
Rated power output
microwave (IEC 705)
100%
[W]
2000
Rated power output
combination mode
[W]
2200 + 2000
Power output
eikon e2s Service and Repair Manual UL
82
8 Technical data
Electrical connected load ratings – Standard Power version
Electrical supply
2~ 208V / 240V
60Hz
Connections used
2P + GND
Arrangement
Two Pole
Rated power
consumption
[W]
3120 / 4160
Rated current per phase
[A]
15 / 20
Rated power output
convected heat
[W]
1300 / 2200
Rated power output
microwave (IEC 705)
100%
[W]
1000
Rated power output
combination mode
(convected heat +
microwave)
[W]
1300 + 1000 /
2200 + 1000
Power output
Regulatory standards compliance
Degree of protection
IPX0
Noise emission
max. 70 [dBA]
Approval marks
Electrical safety
cULus
Hygiene
UL-EPH (NSF/ANSI 4)
eikon e2s Service and Repair Manual UL
83
8 Technical data
8.2 Dimensional drawings
eikon e2s
Front view (door closed)
Cavity dimensions (door closed)
View from the top (door closed)
View from the right hand side (door open)
eikon e2s Service and Repair Manual UL
84
9 Diagnostics
9
Diagnostics
Purpose of this chapter
This chapter contains information on checking various functions of your microwave combination.
Contents
This chapter contains the following topics:
Page
86
89
96
Checking the condition of your appliance
Errors and diagnostics
Fault finding
eikon e2s Service and Repair Manual UL
85
9 Diagnostics
9.1 Checking the condition of your appliance
Servicing procedure: overview
1.
Disconnect/isolate the appliance from the power supply.
2.
Check the appliance is correctly installed as described in the “Installation” section of this manual.
3.
Visually check the cleanliness/condition of the power supply/cable/gland, casing, cavity and door
of the appliance for signs of wear, damage, distortion etc. If required, refer to the “Replacing
components" section of this manual.
4.
Complete an "Earth/Insulation test" (see “Tests" section of this manual) on the appliance before
switching on.
5.
Check the display for error messages. If an error is shown, refer to the “Diagnostics” section of this
manual.
6.
If a firmware update is required, follow the instructions under “Firmware Updates” before continuing with the service procedure.
Enter Service Mode
1.
On start up, tap the top right of the splash screen to bypass
preheat of the cavity.
2.
Enter the authorised user password, for example, "MANAGER"
on the keypad.
Select OK to display the ‘Settings’ menu.
3.
Select the spanner symbol.
eikon e2s Service and Repair Manual UL
86
9 Diagnostics
4.
Enter the service password, for example, "SERVICE" on the
keypad.
Select OK to display the Error Log, service information and test
options.
Touchscreen Calibration
1.
Apply continuous light pressure to the screen while switching the
appliance on.
Continue to hold until the progress bar has completed.
2.
Using a non-abrasive pointer, such as a ball point pen, accurately
press the centre of each crosshair displayed on the screen.
3.
If the crosshair turns red you missed the centre of the crosshair.
Repeat the procedure.
eikon e2s Service and Repair Manual UL
87
9 Diagnostics
4.
If the crosshairs turn green three times consecutively the calibration process is completed successfully.
5.
Once calibrated the screen will display information about the
appliance.
Functions of the Service Mode
1.
Check the "Error Log" for details of any logged appliance errors.
2.
Check the "Oven Counters" to find the usage of components and
the controls area temperature within the cabinet.
3.
Check the operational performance of the main components
using "Visual View".
eikon e2s Service and Repair Manual UL
88
9 Diagnostics
4.
Perform the tests of your microwave combination oven as described.
See “Tests” section of this manual.
If required refer to the “Replacing components” section for any
repairs needed before continuing with the tests.
5.
Follow the procedures under “Commissioning the appliance”
before commissioning your appliance for use.
9.2 Errors and diagnostics
Error messages
1.
A description of the type of error is shown.
Check for a number following ‘ERROR:’ and refer to the error
codes (“Fault Finding” section of this manual) for more details.
The serial number of the oven, model, UI (QTS) version and SRB
version information are also displayed below.
2.
Clear the error message by power cycling the mains power
supply to the oven (not the oven ON/OFF switch).
eikon e2s Service and Repair Manual UL
89
9 Diagnostics
Copying error messages
1.
Enter settings menu and select the USB symbol.
The USB screen appears.
2.
Open the cover of the USB port and insert the USB memory stick
into the slot.
NOTE:
The USB memory stick may take several seconds to load before
the screen will respond.
3.
eikon e2s Service and Repair Manual UL
Select ‘Upload Files’ on the USB screen.
90
9 Diagnostics
4.
Select ‘Error Log’ on the following screen.
5.
Select the green check mark to copy the error log to the USB
memory stick.
The upload progress is shown followed by the upload status.
6.
Select backspace 3 times to return to the main menu.
7.
Remove the USB memory stick.
Error Log
1.
eikon e2s Service and Repair Manual UL
Enter Service Mode and select ‘Error Log’ to display a listing of
oven component errors.
91
9 Diagnostics
2.
Scroll down the list (if necessary) and select an error from the list
to display individual records.
3.
Error details include: component description, error caused, date
and time of the error with details of failure and range.
4.
Select backspace to return to the list, again to return to the
Service Menu.
Cooking Profile counter
1.
Select ‘Oven Counters’ to display the oven component usage and
ambient controls area temperature.
2.
Details include the number of screen touches, filter cycles, door
cycles, total oven power, magnetron and heater element power
on time and the ambient controls area temperature in the cabinet.
3.
Select backspace to return to the Service Menu.
eikon e2s Service and Repair Manual UL
92
9 Diagnostics
Visual View
1.
Select 'Visual View' to check the main components of the appliance.
2.
Select a component symbol to switch on (red).
Select again to increase the level or turn off (green).
3.
Remove the air filter at the front of the oven.
The colour of the air filter symbol on the display should change
from green to red indicating that the magnetic reed switch circuit
for the air filter is operating correctly.
Replace the air filter and the colour should change back to green.
eikon e2s Service and Repair Manual UL
93
9 Diagnostics
4.
Open the oven door.
Check the colour of the door symbol changes from green to red
on the display to check the door microswitch / interlock circuit is
operating.
Place door spacers onto the oven door (refer to "Adjusting the
door microswitches / interlocks" in the “Replacing components”
section for details), close the door and check the colour of the
door symbol on the display.
Green colour indicates that the door interlock adjustment is ok.
Red colour indicates that the door interlock adjustment procedure
must be completed.
5.
Select the cooling fan and check if it is operating correctly.
When increasing the fan power from L (low) to H (high) the fan
noise should become louder.
6.
Place a microwave safe container of water into the cavity, and
close the oven door.
Select a magnetron to test the current draw at maximum output,
this will time-out after 30 seconds.
Dual magnetron model (2000W e2s variant):
Test the magnetrons individually and together.
Using heat proof gloves, remove the container and close the oven
door.
Individual magnetron test:
If there is a magnetron error present, then first reset the error.
If during the magnetron test the current is between 1.1 - 2.2 A and
the error re-occurs after 8 seconds then the failure can be found
in the 230V circuit.
Refer to the schematics to find the fault for repair (fuses, SRB,
door switches, connections, power supply).
If during the magnetron test 0 A and the error reoccurs after 8
seconds then the failure can be found in the high voltage circuit.
Replace high voltage components (diode/rectifier, capacitor or
magnetron) to find out the failing component. Never measure in
the high voltage circuit. See "Replacing components" section of
this manual.
eikon e2s Service and Repair Manual UL
94
9 Diagnostics
7.
Select the convection fan and check if it is operating correctly.
When increasing the fan power gradually to 100% the fan noise
should become louder.
8.
Select the heater, it increases to maximum temperature and then
cycles (the convection fan is ON by default).
Check the cavity temperature and heater element current draw at
maximum are correct. The current should be between 7 A and 9 A
depending on domestic mains voltage.
9.
Select one and then the second magnetron (2000W e2s variant
only) and check if they are operating correctly.
eikon e2s Service and Repair Manual UL
95
9 Diagnostics
9.3 Fault finding
Hardware control components
Operations communication:
1.
The oven has two main parts being the QTS assembly (keyboard, screen, logic)
and the SRB (Smart Relay Board to switch and monitor the required operation).
2.
The QTS is the master of the oven and instructs the SRB what to do, in turn the SRB
communicates information on the operation back to the QTS.
3.
The QTS and SRB have their own Personality Module (PM) fitted with the respective software to be able to communicate and work with each other.
4.
The power provision to the QTS and the communication between QTS and SRB is
enabled via ONE cable with RJ45 connectors fitted.
Start up sequence
With the oven switch in the OFF position and the mains power ON, the QTS & SRB boards boot up.
When the oven switch is turned ON the splash screen briefly displays oven information and the cabinet
cooling fan is activated.
After completing a successful logic test, the safety relay is energised and the oven preheats or displays
a preheat temperature choice. Once preheated the oven displays the main menu if in "Full Service
Mode" or a recipe selection if in "Quick Service Mode".
Shutting down sequence
When the oven switch is turned OFF the screen displays ‘Shutting Down’ and the cooling fan operates
until the cabinet temperature has been sufficiently reduced (cavity temperature of 50°C / 122°F).
The safety relay is de-energised and the QTS & SRB boards remain active.
Exchanging data via USB interface
Procedures of exchanging data by using the USB memory stick:
 Menu loading from the USB memory stick to the appliance (recipes / download)
 Software loading from the USB memory stick to the appliance (firmware / download)
 Error log saving from the appliance to the USB memory stick (upload)
 Menu copying from the appliance to the USB memory stick (upload)
 Recipe counter copying from the appliance to the USB memory stick (upload)
eikon e2s Service and Repair Manual UL
96
9 Diagnostics
Error code list
Error
Code
Error
Description
Condition
E 101
Magnetron
failed to
energise
E 102
Possible
Causes
System
Response
Detects a magne- The current
tron is not working measured by the
correctly
current sensing
transformer was
outside of tolerance.
Failure of component/s in the
microwave circuit
Display error
message until
system is power
cycled.
Heater
incorrect
current
Detects a heating
element is not
working correctly
The current
measured by the
sensing transformer on the SRB
was <1A when
heating cycled on
or >1A when
heating cycled off.
If some current
>1A, one or more
heater elements
could have failed.
If current measured <1A possible
wiring fault stopping power
reaching element.
Display error
message until
system is power
cycled.
E 103
Ambient
overheat
>70°C
Detects if the
controls area is
operating above
temperature
The ambient
temperature
measured on the
QTS and SRB
was >70°C
Cooling fan failed.
Cooling fan wired
incorrectly. Inlet
air too hot.
Blocked inlet filter.
Display error
message until
ambient controls
area temperature
is below 60°C.
E 104
Magnetron / Detects if the
Cavity and magcavity
cavity and magnetron overheat
overheat
netrons are above thermostats
temperature
Cooling fan failed.
E103 / E106 not
triggering. Failed
SRB. Magnetron
failure. Wiring /
connection fault.
Blocked inlet filter.
Display error
message until
service call and
the magnetron
cools down or the
cavity stat is reset.
E 105
Supply
frequency
high / low
Detects if the
power supply
frequency is
outside specification
Incorrect mains
voltage.
Poor internal /
external wiring
connections.
Faulty SRB.
Display error
message until
system power
cycled.
E 106
Cavity
reaches
25°C above
setpoint
once it has
been controlling at
setpoint
Detects if the
The setpoint of the Cavity fire.
cavity temperature appliance was
Failed convection
has risen above
exceeded
fan.
imits
No impeller or
loose impeller on
convection fan.
E 107
Communica No communication error
tion can be made
between the QTS
and SRB
eikon e2s Service and Repair Manual UL
Trigger
The power supply
to the oven frequency sensor on
the SRB
measures too high
/ low
Loss of commuSRB / QTS connication between nection cable
the SRB and QTS unplugged or
damaged. Faulty
QTS or SRB.
97
Display error
message until
system is power
cycled.
Display error
message until
system is power
cycled.
9 Diagnostics
E 108
QTS PM
error
Wrong PM found / The QTS or SRB
no PM found
either has an
incorrect PM
(Personality Module) fitted or no
PM is fitted
The PM has been
changed and is
incorrect. The PM
has been removed.
Display error
message until
system is power
cycled.
E 109
SRB PM
error
E 110
SRB
version
conflict
SRB firmware
version incompatible with QTS
version
The QTS has
found that the
firmware running
the SRB is not
supported.
Firmware update
has been carried
out to the QTS
and the SRB has
not been updated
to match.
Display error
message until
system is power
cycled.
E 111
Cavity
Cavity sensor
sensor error broken /
unplugged
The controller is
reading an open
circuit across the
thermocouple
input
The thermocouple
is not connected.
The thermocouple
is broken open
circuit. Failed
SRB.
Display error
message until
system is power
cycled.
E 112
SRB sensor SRB ambient
fail
temperature
sensor failure
Shorted SRB
temperature
sensor
Shorted Ambient
temp sensor on
the SRB
Display error
message until
service call and
the magnetron
cools down or the
cavity stat
E 113
Magnetron
fail on
without
request
Magnetron oper- Magnetron current Triac, Diode or
ates without being sensed at >1 Amp relay short cirrequested to do
cuited on SRB
so.
Display error
message until
service call and
the magnetron
cools down or the
cavity stat is reset.
E 116
Heater off
on request
No heater current
detected when
requested
Cavity does not
Oven heater
reach 100°C in 30 element failure
minutes
Display error
message until
service call and
the magnetron
cools down or the
cavity thermostat
is reset.
E 117
Magnetron
overheat
thermostat
Magnetron overheat thermostat
has been triggered as a result
of excessive
temperature
Magnetron stat is
open circuit when
running microwave
Display error
message until
service call and
the magnetron
cools down or the
cavity thermostat
is reset.
n/a
Oven door Oven door open.
open longer Oven inoperable.
than 1 min.
Break in switched Door left open.
feed on SRB
Failed door
switch/s or SRB.
Faulty wiring or
connection.
Display warning
message until
door is closed.
n/a
Air filter
removed
Filter not fitted.
Display error
message until
filter replaced.
Air filter not fitted.
Oven inoperable.
eikon e2s Service and Repair Manual UL
98
Blocked air filters /
high environmental temperatures /
Positioning next to
heat sources or
failed magnetron
Failed reed
switch/s or SRB.
Faulty wiring or
connection.
9 Diagnostics
n/a
Screen
frozen
Touch screen
inoperable
Continual pressure of the touch
screen
Damaged touch
screen / touch
screen depress for
more than 15
seconds.
Display error
message until
touch screen
press released
Error code for recommission test messages
89 Cooling test fail
90 Convection test fail
92 Heater test fail
93 Magnetron test fail
94 Air filter in test fail
95 Air filter out test fail
96 Door closed test fail
97 Door open test fail
98 Incomplete cleaning
Normal error messages
86 On/Off switch operated
99 Air filter override accepted by the customer
100 Main power On, oven connected to the supply door open (for more than 1 minute)
If ‘Door Open’ message is shown while the door is closed, check the Magnetron 230V circuit power
supply.
Error messages (the oven stops operating)
88 Supply voltage error (+/- 10% of rated voltage)
101 Magnetron failed on request
102 Heater ON without request
103 Ambient overheat
104 Magnetron/cavity overheat trip, when oven in idle mode (also see E117)
105 Supply frequency error (+/- 2Hz)
106 Cavity reaches 75°C above set point or 25°C at 275°C
107 Communication error QTS-SRB
108 QTS Personality Module error
109 SRB Personality Module error
110 Incompatible SRB version
111 Cavity sensor failed
112 SRB board sensor failed
113 Magnetron on without request
114 Free – currently not used
115 Convection fan feedback (motor speed controller cable disconnected)
116 Heater OFF on request
117 Magnetron/cavity trip during cook operation cycle (OH-12V gone for > 1sec)
If this OH trip happens in idle mode you get E104.
To reset the error, disconnect the oven from the power supply and re-connect.
eikon e2s Service and Repair Manual UL
99
10 Tests
10 Tests
Purpose of this chapter
This chapter contains information on testing single components of your microwave combination oven.
Contents
This chapter contains the following topics:
Safe working when testing components
Requirements
Testing selected components (casing mounted)
High voltage components (casing removed)
Mains voltage components (casing removed)
eikon e2s Service and Repair Manual UL
100
Page
101
104
104
113
116
10 Tests
10.1 Safe working when testing components
For your safety when testing oven components
Before starting oven tests, it is essential that you familiarize yourself with the rules and hazard warnings
specified and follow the instructions given there.
Eligibility of personnel for testing oven components
Only qualified personnel from an authorized service company are permitted to test components of the
microwave combination oven.
GROUNDING INSTRUCTIONS
IMPROPER USE OF THE GROUNDING PLUG CAN RESULT IN A
RISK OF ELECTRIC SHOCK.
For all cord-connected appliances:
GROUNDING INSTRUCTIONS
This appliance must be grounded. In the event of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric current. This appliance is equipped with a cord
having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly
installed and grounded.
Consult a qualified electrician or service technician if the grounding instructions are not completely
understood, or if doubt exists as to whether the appliance is properly grounded.
Do not use an extension cord. If the power supply cord is too short, have a qualified electrician or service
technician install an outlet near the appliance.
eikon e2s Service and Repair Manual UL
101
10 Tests
INSTRUCTIONS POUR LA MISE À LA TERRE
LE MANQUEMENT À CETTE RÈGLE PEUT RÉSULTER EN DES
CHOCS ÉLECTRIQUES POUVANT CAUSER LA MORT.
Pour tous les appareils avec cordon:
INSTRUCTIONS POUR LA MISE À LA TERRE
Cet appareil doit être mis à la terre. Si un court-circuit électrique survient, la mise à la terre réduit les
risques de chocs électriques en offrant un conducteur de fuite pour le courant électrique. Cet appareil
est équipé d’un cordon ayant un conducteur de mise à la terre et d’un connecteur ayant une broche de
mise à la terre. Le connecteur doit être branché à une prise de courant installée et mise à la terre
correctement.
AVERTISSEMENT - Une méthode inadaptée de mise à la terre peut causer des risques de chocs
électriques. Consulter un électricien ou un technicien de service qualifié si les directives portant sur la
mise à la terre ne sont pas comprises ou si un doute existe si oui ou non l’appareil est mis à la terre
correctement.
Ne pas utiliser de cordon prolongateur. Si le cordon d’alimentation est trop court, demander à un
électricien ou un technicien qualifié d’installer une nouvelle prise de courant près de l’appareil.
Moving heavy loads
Risk of injury from lifting incorrectly
When lifting the appliance, the weight of the appliance may lead to injuries, especially in the area of the
torso.
 Use a forklift truck or pallet truck to place the appliance in the installation position or to move it to a
new position.
 When shifting the appliance into the correct position, use enough people for the weight of the
appliance when lifting it (value depending on age and gender). Observe the local occupational
safety regulations.
 Wear personal protective equipment.
Sharp-edged sheet-metal parts
Risk of cuts from sharp-edged sheet-metal parts
Working with or behind sharp-edged sheet-metal parts may result in cuts to hands.
 Exercise caution.
 Wear personal protective equipment.
eikon e2s Service and Repair Manual UL
102
10 Tests
Hot surfaces
Risk of burns from high temperatures inside the cavity and on the inside of the appliance door
You may get burnt if you touch any of the interior parts of the cooking chamber, the inside of the
appliance door or any parts that were inside the oven during cooking.
 Before starting servicing and repair work, wait until the cooking chamber has cooled to below 50°C /
122°F or use the ‘Cool-Down' function to cool the cooking chamber.
 Wear personal protective equipment.

Live components
Risk of electric shock from live parts
When the covers of the microwave combination oven are removed, there is a risk of electric shock from
touching live parts.
 Make sure that any work on the electrical system is performed solely by a qualified electrician from
an authorized customer service office.
 Before removing the covers:
Switch the appliance off and disconnect the plug from the wall socket.
Turn off the isolator switch to disconnect fixed wired appliances and lock-off.
Take protective measures at every power switch to ensure that the power cannot be switched on
again.
Always discharge the high voltage capacitors before working on the appliance using a suitably
insulated 10MΩ resistor.
Make sure that the appliance is de-energized.
 Make sure that the electrical connections are intact and connected securely before you reconnect
the appliance to the power supply.





Microwave emissions
Risk of burns from microwave emissions
 Do not become exposed to emissions from the microwave generator or parts conducting microwave
energy.
 Never operate an appliance that has failed the "Microwave Leakage test".
Fire / smoke in the appliance
Risk of fire and/or smoke
Flames and/or smoke may come out of the oven when switching it on after service/repair. This can be
caused by a defective electrical component or electrical connections (wiring) that have been refitted
incorrectly.
 Switch off the oven.
 Disconnect/isolate the oven from the electrical supply.
 Keep the oven door closed to stifle any flames.
eikon e2s Service and Repair Manual UL
103
10 Tests
10.2 Requirements
Equipment required for testing the appliance









Portable Appliance Tester (P.A.T.)
Digital Multi-Meter (D.M.M.)
Megger / similar 500 V d. c. resistance meter
Microwave detection / leakage meter
Temperature reader
Continuity meter
Door Spacer Kit
Microwave safe 600 ml glass beaker
Microwave safe 2 litre container
10.3 Testing selected components (casing mounted)
Technical Advisory Notice: PAT testing of Merrychef ovens
While testing with a Portable Appliance Tester (PAT) is not an automatic requirement for the Merrychef
Commercial Combination Microwave oven models, the following notice is to advise on this testing in
addition to the following instructions as deemed necessary.
If the customer requires PAT testing of our equipment we suggest this is limited to a) earth continuity and
b) insulation resistance (measured at ~ 500 V DC). All Merrychef Commercial Combination Microwave
Ovens are classified as CLASS 1 for the purpose of testing.
Should it still be deemed necessary by the customer to perform an Earth Leakage test, the following
advice should be adhered to. Note that not all PATs are capable of just measuring the leakage or allow
you to set a pass limit and therefore may not be appropriate for this test.
HIGH LEAKAGE CURRENT
Merrychef appliances are fitted with radio interference filters and inverter circuits which cause an
increase in leakage current. The PAT may indicate an erroneous fail condition depending on its internal
"pass"/"fail" settings. Please refer to the revised limits which apply to the specific Merrychef oven model.
Model
Model maximum limit applied with radio
interference filter fitted
eikon e2s
10 mA
Never touch the component under test while tests are being carried through.

Call a trained authorized service agent if the oven under test still fails in order to check all earth
connections and disconnect the radio interference filters before repeating the test if required.
eikon e2s Service and Repair Manual UL
104
10 Tests
Earth/Insulation test
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
1.
Connect the mains lead from the appliance to a Portable Appliance Tester.
2.
Connect the earth from the Portable Appliance Tester to the
appliance.
3.
Place the Portable Appliance Tester in an open area, such as the
floor, away from any persons.
Perform a Class 1 test in accordance with tester instructions.
 A PASS indicates the oven earthing circuit is functioning correctly.
 If a FAIL is indicated (i.e. unit exceeds maximum limit), remove
the casing of the appliance and check ALL earth connections.
Then repeat the Class 1 test.
WARNING:
Never operate an appliance that has failed this test as it could be
potentially dangerous.
Service Mode: Tests Menu
1.
Enter Service Mode.
For details see "Checking the condition of your appliance".
2.
Select the down arrow to display the individual tests for the
appliance to perform.
eikon e2s Service and Repair Manual UL
105
10 Tests
Microwave Power test: Measuring the microwave power output of the magnetron(s)
Check that the following requirements have been met:
 The appliance is cool.
NOTE:
The power output is established under IEC 705 standard method which is only workable in laboratory
controlled conditions. The power output is also affected by line voltage under load, so this test is an
approximation only.
1.
Enter Service Mode.
For details see "Checking the condition of your appliance".
2.
Select 'Visual View' to check the cavity temperature reading is as
close to 0°C as possible.
3.
Fill a microwave safe container (glass or plastic) with one litre
(1.78 pints) of tap water at 20°C (68°F).
4.
Measure and record the water temperature in the container using
a thermometer capable of reading ±0.1 degree increments.
5.
Place the container centrally into the cavity.
6.
Select ‘Microwave Power Test’ from the Service Mode tests
(microwave power 100% for 63 seconds, fan minimum).
eikon e2s Service and Repair Manual UL
106
10 Tests
7.
When the countdown has finished, remove the container from the
cavity.
Immediately stir with a plastic implement and measure the water
temperature.
8.
Calculate the temperature rise of the water (end temperature
minus the start temperature).
The temperature rise should be 14.3°C (25.7°F) ±10% for the
1000W (1 magnetron) variant.
The temperature rise should be 28.5°C (51.4°F) ±10% for the
2000W (2 magnetrons) variant.
If the temperature rise is outside these limits check the microwave circuit and components.
Replace the magnetron and/or high voltage diode board / rectifier
if required.
eikon e2s Service and Repair Manual UL
107
10 Tests
Microwave Leakage test
Follow these instructions when measuring:
 Make sure that the survey meter you are using has been calibrated and is suitable for measuring
frequencies of 2,450 MHz.
 Do not exceed meter full scale deflection. The leakage meter should initially be set to the highest
scale, then adjusted down as necessary to ensure that low readings are measured on the most
sensitive range.
 To prevent false readings, hold the probe on the grip provided and move at 2.5 cm/second.
 Always hold the probe at right angles to the oven and point of measurement, ensuring the probe is
reading 50 mm from the test area.
 The leakage should not exceed 5 mW/cm².
1.
Add 275 ml of cold water into a 600 ml microwave safe container.
2.
Place the 600 ml container in the centre of the cavity and close
the door.
3.
Enter Service Mode on the screen and select ‘Microwave leakage
test’ from the appliance tests.
4.
Set the leakage meter to the appropriate scale/range.
eikon e2s Service and Repair Manual UL
108
10 Tests
5.
Move the survey meter probe across all casework joins and vent
areas including those marked in yellow, shown opposite.
6.
When the magnetron circuit stops after 30 seconds, change the
water and re-select the test to continue.
7.
Select the red ‘X’ on the display to stop the test at any time.
8.
Readings must be below 5 mW/cm².
CAUTION:
If a level greater than 5 mW/cm² is observed, report this to the
Merrychef Service Department immediately. Don't use the
appliance hereafter.
9.
eikon e2s Service and Repair Manual UL
Note any leakage that is observed in terms of the level and
position on the appliance. Keep this information with the service
documentation.
109
10 Tests
Temperature Control test: measuring the cavity temperature
NOTE:
Re-calibrating the temperature sensor / thermocouple with the SRB is normally only required when the
thermocouple has been replaced or the appliance is under or over cooking.
1.
Place the probe of a temperature reader onto a heat sink or a
metal plate in the centre of the oven cavity and close the door.
2.
Select ‘Temperature Control Test’ from the service mode tests.
The cavity heats up and cycles at the maximum set point temperature over 30 minutes.
3.
Once the appliance is up to maximum temperature check for a
stable temperature reading.
4.
Select the red 'X' to finish the test, if necessary.
eikon e2s Service and Repair Manual UL
110
10 Tests
5.
If the temperature reading is different to the maximum set point,
scroll up to select TEMP. COMP. (Temperature Compensation)
and enter the password.
6.
Enter the figure from the temperature reader on the keypad and
select OK to calibrate the SRB to the temperature sensor (thermocouple).
7.
Retest to check that the cavity temperature reading is the same
as the oven maximum set point temperature.
8.
If the temperature reading is stable repeat the Temperature
Control Test procedure.
eikon e2s Service and Repair Manual UL
111
10 Tests
If the temperature reading is unstable:
1.
Disconnect and isolate the appliance from the electricity supply.
Take protective measures to ensure the power cannot be switched on again.
2.
Allow the appliance to cool down.
3.
Remove the side and top panels of the casing.
4.
Check the cavity temperature sensor wire and connections.
5.
If the wire and connections are working properly replace the cavity temperature sensor (see “Replacing
components” section of this manual).
6.
Refit the panels of the casing.
Switch ON the appliance and repeat the test procedure as described above.
7.
If the temperature is still unstable repeat steps 1 to 3, replace the SRB (see “Replacing components”
section), repeat step 6.
NOTE: Reuse the existing PM (Personality Module) on the new SRB (enter serial number on reboot).
Soak test: checking the cavity integrity
1.
Place an oven/microwave safe container with approx. 2 litres of
water into the cavity.
2.
Close the appliance door and select ‘Soak Test’ from the Service
Mode oven tests (maximum oven temperature, 50% microwave
power, maximum fan speed).
3.
Run the test (30 minutes), carefully checking the appliance
casing, joints and door seal for signs of steam or water escaping
from the cavity.
4.
If necessary, rectify any leaks and repeat the test.
5.
Safely remove the container from the cavity.
eikon e2s Service and Repair Manual UL
112
10 Tests
10.4 High voltage components (casing removed)
High Voltage Transformer test
Ensure the following requirements have been met before starting the test:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
 The casing of the appliance has been removed.
High voltages and large currents are present at the high voltage capacitor.
It is very dangerous to work near this part when the oven is on.
NEVER make any voltage measurements at the high voltage circuits, including the magnetron filament.
1.
Remove all connections from the transformer.
2.
Using a Digital Multi-Meter (DMM), check the resistance of the
windings.
Results should be as follows:
3.
Mains winding between tags, approx. 1.1 Ω.
4.
High Voltage winding, approx. 60 Ω.
5.
Filament winding between terminals, less than 1 Ω.
6.
Using a megger, test the insulation resistance between:
● Primary winding and chassis. Pass if reading is over 10 MΩ
● Filament winding and chassis. Pass if reading is over 10 MΩ
NOTE: One end of the High Voltage winding is connected to the
chassis, so this is not tested.
eikon e2s Service and Repair Manual UL
113
10 Tests
High Voltage Diode test
Ensure the following requirements have been met before starting the test:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
 The casing of the appliance has been removed.
1.
Remove all connections from the high voltage diode.
2.
Using a megger, test for continuity in both directions.
Results should be as follows:
 Open circuit both ways - FAIL
 Conducts one-way only - PASS
 Short circuit both ways - FAIL
 Conducts one way, leaks the other - FAIL
High Voltage Capacitor test
Ensure the following requirements have been met before starting the test:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
 The casing of the appliance has been removed.
High voltages and large currents are present at the high voltage capacitor.
It is very dangerous to work near this part when the oven is on.
NEVER make any voltage measurements at the high voltage circuits, including the magnetron filament.
1.
Remove all electric connections from the high voltage capacitor.
2.
Using a Digital Multi-Meter (DMM), check for continuity:
Results should be as follows:
3.
Connect the DMM to both terminals of the high voltage capacitor.
The test is passed if the DMM display reads approx. 10 MΩ.
eikon e2s Service and Repair Manual UL
114
10 Tests
4.
Connect the DMM to one terminal and the metal outer case of the
high voltage capacitor.
The test is passed if the DMM display reads "open circuit".
Repeat the test for the other terminal and the metal outer case.
5.
Using a megger, test the insulation resistance between both
terminals and the metal outer case of the high voltage capacitor.
The test is passed if the megger display reads over 100 MΩ.
6.
Repeat the whole test for the second high voltage capacitor
(2000W variant only).
High Voltage Magnetron test
Ensure the following requirements have been met before starting the test:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
 The casing of the appliance has been removed.
1.
Remove all electric connections from the magnetron.
2.
Using a megger, check for continuity.
Results should be as follows:
3.
Connect the megger to both filament terminals of the magnetron.
The test is passed if the megger display reads 1 Ω or less.
4.
Connect the megger to one filament terminal and the metal outer
case of the magnetron.
The test is passed if the megger display reads "open circuit".
Repeat the test for the other filament terminal and the metal outer
case.
5.
Repeat the whole test for the second magnetron (2000W variant
only).
eikon e2s Service and Repair Manual UL
115
10 Tests
10.5 Mains voltage components (casing removed)
Convection fan: motor
The convection fan motor is a 3-phase AC motor having a maximum speed of 7200 rpm controlled by a
motor speed controller.
The windings are thermally protected and in the event of a thermal fault a trip inside the motor will
operate and shut down the motor speed controller.
Convection fan: motor speed controller
The convection motor speed controller provides a 3-phase AC switched mode drive to the convection
motor and is controlled by a 0 - 10 Volt signal from the SRB.
This allows the motor to be adjusted from approximately 1500 rpm to 7000 rpm in steps of 5%.
 Door open, 1500 rpm (20% @ 2V).
 Door closed (not cooking), 2190 rpm (31% @ 3.1V).
 Door closed (cooking), speed as specified by program or setting up to a maximum of 7000 rpm (100%
@ 10V).
Convection fan: LED status display





Inverter Off / No supply, LED OFF.
Power On / Ready, LED flashes ON/OFF 1x per second.
Inverter Running, LED ON continuously.
General Warning, LED flashes ON/OFF 2x per second.
Fault Condition, LED flashes ON/OFF 10x per second.
Convection fan: motor and motor speed controller tests
Ensure the following requirements have been met before starting the test:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
 The casing of the appliance has been removed.
Check the following:
1.
Electrical supply into motor controller.
2.
Three phase connections to convection fan motor.
3.
Motor speed controller (convection fan) connections to SRB.
4.
Convection fan motor thermal cut-out (short circuit).
5.
Convection fan motor rotates freely / not seized.
6.
Convection fan motor winding resistances:
 Blue-Black 3-4 Ω
 Black-Brown 3-4 Ω
 Brown-Blue 3-4 Ω
 Black or Brown or Blue to Earth (open circuit).
eikon e2s Service and Repair Manual UL
116
11 Firmware
11 Firmware
Purpose of this chapter
This chapter informs about the correct procedure to check and update the firmware of the appliance.
Page
118
Firmware Updates
eikon e2s Service and Repair Manual UL
117
11 Firmware
11.1 Firmware Updates
Overview
1.
Switch on the oven.
2.
Tap the top right hand corner of the screen.
3.
Enter the correct password (the default password is
"MANAGER") and select the green check mark.
4.
Select the USB symbol.
5.
Select one of the USB options:
 ‘Firmware’ for QTS & SRB updates
 ‘Recipes’ for icons.
Install the SRB update first, the QTS update second and any
icons third.
Alternatively, if you have the Autoupd.ate file present on the USB
be aware that all files of your USB will be loaded and overwrite
the existing files.
Save the menu files before uploading files.
If you have a menu file on your USB memory stick then the menu
of the appliance will be overwritten.
If you have no menu file on your USB memory stick the menu of
the appliance stays as it is.
eikon e2s Service and Repair Manual UL
118
11 Firmware
6.
Select the firmware to install and select the green check mark to
confirm.
7.
The update screen displays the file version and product.
Select the green check mark to confirm the installation.
eikon e2s Service and Repair Manual UL
119
11 Firmware
Requirement:
To format a USB memory stick, place it in a PC USB slot, select
'Computer' and right click on the USB memory stick symbol.
Select 'Format' and select FAT (Do NOT select FAT 32).
NOTE:
This will erase all data on the USB memory stick.
Procedure:
1.
With the oven switched OFF, open the cover of the USB port and
insert the USB memory stick into the slot.
The USB memory stick should be formatted to FAT with firmware
loaded.
NOTICE:
Do not remove the USB memory stick during the download
sequence as this could corrupt the data transferred from the USB
stick.
2.
Switch ON the oven.
Tap the top right hand corner of the screen to bypass the preheat
stage.
3.
Enter the password (default password is "MANAGER").
Select the green check mark to display the Settings menu.
eikon e2s Service and Repair Manual UL
120
11 Firmware
4.
Select the USB symbol.
5.
Once the USB memory stick has stopped flashing, select the
'Firmware' USB symbol.
6.
The current QTS (Quick Touch Screen) and SRB (Smart Relay
Board) firmware versions are displayed at the top left of the
screen.
eikon e2s Service and Repair Manual UL
121
11 Firmware
SRB firmware update
6.
Select the ‘SRB’ file with the correct file version number.
NOTE:
A tinted band over a file name indicates the file is not valid for your
oven.
7.
eikon e2s Service and Repair Manual UL
Check if the file information shown is correct before selecting OK.
If not select ‘X’ and locate the correct file.
122
11 Firmware
8.
The SRB file is checked and the download progress from the
USB is displayed followed by the update status and confirmation
screens.
NOTE:
Wait until all files have been loaded. Do not touch the oven until
the end of the downloading process.
9.
When the download process is complete press the return arrow
and select the QTS file and repeat.
10.
When the QTS download has been completed, the oven will
reboot and display a flash screen as it updates.
eikon e2s Service and Repair Manual UL
123
11 Firmware
QTS firmware update
13.
Select the ‘QTS’ file with the correct file version number.
NOTE:
A tinted band over a file name indicates the file is not valid for that
appliance.
14.
Check if the file information shown is correct before selecting OK.
If not, select ‘X’ and locate the correct file.
15.
The file update progress is displayed.
At 50% the cooling fan stops operating, after 100% various
screen displays appear as the software reboots.
eikon e2s Service and Repair Manual UL
124
11 Firmware
16.
Check if the screen shows the correct QTS version.
If not, repeat the process using the correct file.
17.
Remove the USB memory stick and keep it in a safe place.
Download Procedure
NOTICE
Do not remove the USB memory stick during the download sequence as this could corrupt the USB
data.
IMPORTANT:
Downloading from a USB memory stick will clear all existing programs.
Only use an empty USB memory stick formatted as FAT16 (default) or FAT32.
Copy the following firmware files to the ROOT directory of the USB memory stick:
 QTS-eX-XXX-VX.X.XX.BIN
 SRB-eX_X_X_XXX.BIN
 VX-APP-eX.CBR
 Autoupd.ATE
For update A) follow all instructions:
For update B) follow the first two instructions:
1.
With the oven switched OFF, open the cover of the USB port and
insert the USB memory stick into the slot.
2.
Switch ON the oven.
eikon e2s Service and Repair Manual UL
125
11 Firmware
3.
Tap the top right of the screen to bypass the preheat stage.
4.
Enter the password and select OK to display the settings menu.
5.
Select the USB symbol.
6.
Select the 'Firmware' USB symbol.
eikon e2s Service and Repair Manual UL
126
11 Firmware
7.
Select the ‘QTS’ file with the correct file version number.
NOTE:
A tinted band over a file name indicates the file is not valid for that
appliance.
8.
eikon e2s Service and Repair Manual UL
Check the file information shown is correct before selecting the
green check mark.
If not, select ‘X’ and locate the correct file.
127
11 Firmware
9.
eikon e2s Service and Repair Manual UL
The CBR file is checked and the download progress from the
USB memory stick is displayed followed by the update status and
confirmation screens.
128
11 Firmware
10.
eikon e2s Service and Repair Manual UL
The QTS, SRB and Application Icon files then download automatically showing the progress, status and reboot confirmation
screens for each file update.
129
11 Firmware
11.
On completion the start up screen is displayed showing the
updated firmware versions followed by the pre-heat temperature
screen.
Confirming the firmware update
After an update of the appliance firmware certain files are copied back to the USB memory stick.
You can check if the file transfer was successful with the following procedure:
1.
Load the files from the USB memory stick to a computer.
2.
Open the update (UPDATE.txt) file.
3.
A firmware update is confirmed below the serial number of the appliance with ‘updated’ following the
QTS/SRB firmware.
Load only the specific files for the stage 3.1 upgrade onto the USB memory stick:
 BTS/QTS - (model type) V.003.000.001
 SRB - (model type) V.003.000.001
 Latest menu file xxxxxxxxxx
NOTE:
Load only the correct menu files onto the USB memory stick and not single menus.
eikon e2s Service and Repair Manual UL
130
11 Firmware
PM (Personality Module) replacement – firmware update
NOTE:
 The Personality Module on the SRB contains the firmware.
 The Personality Module on the QTS contains the firmware, serial number of your appliance, temperature calibration, cooking profiles, application icons and the recipe images.
1.
With a new Personality Module fitted and casing refitted, switch
on the appliance and tap the screen to hold and check the QTS
and SRB versions are the latest release.
If not, execute a firmware update using the latest versions.
2.
Tap the top right of the screen to bypass the preheat stage.
3.
Enter the service password and select OK to display the settings
menu.
4.
Select the USB symbol.
eikon e2s Service and Repair Manual UL
131
11 Firmware
5.
Open the cover to the USB port and insert the USB memory stick
into the slot.
NOTE:
The USB memory stick may take several seconds to load before
the screen will respond.
6.
Once the USB memory stick has stopped flashing, select the
required "USB Recipes" symbol.
7.
Select the application icons file to download.
NOTE:
A tinted band over a file name indicates the file is not valid for that
appliance.
eikon e2s Service and Repair Manual UL
132
11 Firmware
8.
Check the file information shown is correct before selecting OK.
If not, select ‘X’ and locate the correct file.
9.
When completed, select menu file to load the cooking profiles.
Once the cooking profiles are loaded the appliance restarts.
10.
Enter the date and time settings.
11.
Enter the serial number of the appliance (found on the rating plate
at the rear casing).
12.
Switch the appliance OFF/ON.
13.
Remove the USB memory stick and keep it in a safe place.
eikon e2s Service and Repair Manual UL
133
12 Replacing components
12 Replacing components
Purpose of this chapter
This chapter contains information on how to remove and fit components of the oven.
Contents
This chapter contains the following topics:
Safe working when replacing appliance parts
Overview
Removing / fitting the casing
Removing / fitting the door assembly
Replacing a magnetron
Replacing the cooling fan
Replacing the QTS (Quick Touch Screen) assembly
Replacing the SRB (Smart Relay Board)
Replacing the touchscreen overlay
Adjusting the door microswitches / interlocks
Replacing the stirrer motor
Replacing the convection fan motor
Replacing a transformer (high voltage)
Removing the convection fan motor speed controller
Overview – further components
eikon e2s Service and Repair Manual UL
134
Page
135
138
143
146
151
156
158
163
165
167
169
173
175
178
180
12 Replacing components
12.1 Safe working when replacing appliance parts
For your safety when replacing appliance parts
Before starting service / repair work, it is essential that you familiarize yourself with the rules and hazard
warnings specified and follow the instructions given there.
Eligibility of personnel for removal / fitting of appliance parts
Only qualified personnel from an authorized service company are permitted to remove and fit components of the microwave combination oven.
Rules for setting up the appliance safely
To prevent hazards that arise from the installation site and environment of the appliances, the rules for
setting up the appliance safely must always be observed; see 'Requirements relating to the operating
environment of the microwave combination oven' on page 23 in the Installation and Operating Manual.
GROUNDING INSTRUCTIONS
IMPROPER USE OF THE GROUNDING PLUG CAN RESULT IN A
RISK OF ELECTRIC SHOCK.
For all cord-connected appliances:
GROUNDING INSTRUCTIONS
This appliance must be grounded. In the event of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric current. This appliance is equipped with a cord
having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly
installed and grounded.
Consult a qualified electrician or service technician if the grounding instructions are not completely
understood, or if doubt exists as to whether the appliance is properly grounded.
Do not use an extension cord. If the power supply cord is too short, have a qualified electrician or service
technician install an outlet near the appliance.
eikon e2s Service and Repair Manual UL
135
12 Replacing components
INSTRUCTIONS POUR LA MISE EN TERRE
LE MANQUEMENT À CETTE RÈGLE PEUT RÉSULTER EN DES
CHOCS ÉLECTRIQUES POUVANT CAUSER LA MORT.
Pour tous les appareils avec cordon:
INSTRUCTIONS POUR LA MISE À LA TERRE
Cet appareil doit être mis à la terre. Si un court-circuit électrique survient, la mise à la terre réduit les
risques de chocs électriques en offrant un conducteur de fuite pour le courant électrique. Cet appareil
est équipé d’un cordon ayant un conducteur de mise à la terre et d’un connecteur ayant une broche de
mise à la terre. Le connecteur doit être branché à une prise de courant installée et mise à la terre
correctement.
Une méthode inadaptée de mise à la terre peut causer des risques de chocs électriques. Consulter un
électricien ou un technicien de service qualifié si les directives portant sur la mise à la terre ne sont pas
comprises ou si un doute existe si oui ou non l’appareil est mis à la terre correctement.
Ne pas utiliser de cordon prolongateur. Si le cordon d’alimentation est trop court, demander à un
électricien ou un technicien qualifié d’installer une nouvelle prise de courant près de l’appareil.
Moving heavy loads
Risk of injury from lifting incorrectly
When lifting the appliance, the weight of the appliance may lead to injuries, especially in the area of the
torso.
 Use a forklift truck or pallet truck to place the appliance in the installation position or to move it to a
new position.
 When shifting the appliance into the correct position, use enough people for the weight of the
appliance when lifting it (value depending on age and gender). Observe the local occupational
safety regulations.
 Wear personal protective equipment.
Sharp-edged sheet-metal parts
Risk of cuts from sharp-edged sheet-metal parts
Working with or behind sharp-edged sheet-metal parts may result in cuts to hands.
 Exercise caution.
 Wear personal protective equipment.
eikon e2s Service and Repair Manual UL
136
12 Replacing components
Hot surfaces
Risk of burns from high temperatures inside the cavity and on the inside of the appliance door
 You may get burnt if you touch any of the interior parts of the cooking chamber, the inside of the
appliance door or any parts that were inside the oven during cooking.
 Before starting servicing and repair work, wait until the cooking chamber has cooled to below 50°C /
122°F or use the ‘Cool-Down' function to cool the cooking chamber.
 Wear personal protective equipment.
Live components
Risk of electric shock from live parts
When the covers of the microwave combination oven are removed, there is a risk of electric shock from
touching live parts.
 Make sure that any work on the electrical system is performed solely by a qualified electrician from
an authorized customer service office.
 Before removing the covers:
Switch the appliance off and disconnect the plug from the wall socket.
Turn off the isolator switch to disconnect fixed wired appliances and lock-off.
Take protective measures at every power switch to ensure that the power cannot be switched on
again.
Always discharge the high voltage capacitors before working on the appliance using a suitably
insulated 10MΩ resistor.
Make sure that the appliance is de-energized.
 Make sure that the electrical connections are intact and connected securely before you reconnect
the appliance to the power supply.





Microwave emissions
Risk of burns from microwave emissions
 Do not become exposed to emissions from the microwave generator or parts conducting microwave
energy.
 Never operate an appliance that has failed the "Microwave Leakage test".
Fire / smoke in the appliance
Risk of fire and/or smoke
Flames and/or smoke may come out of the oven when switching it on after service/repair. This can be
caused by a defective electrical component or electrical connections (wiring) that have been refitted
incorrectly.
 Switch off the oven.
 Disconnect/isolate the oven from the electrical supply.
 Keep the oven door closed to stifle any flames.
eikon e2s Service and Repair Manual UL
137
12 Replacing components
12.2 Overview
View: left hand side
eikon e2s Service and Repair Manual UL
138
12 Replacing components
View: right hand side
eikon e2s Service and Repair Manual UL
139
12 Replacing components
View: rear side
eikon e2s Service and Repair Manual UL
140
12 Replacing components
Component List
Item
Name
Function
1
Front panel
The front panel houses the touchscreen and the
QTS assembly.
2
Door handle
Open the oven door using the door handle. Never
use the door handle to lift the appliance.
3
Door cover panel
The door cover panel can be detached for accessing
the door hinge assembly.
4
Frame
The front, top, side and back panels of the casing
and the oven door are mounted to the metal frame.
5
Air filter faceplate
The faceplate can be tilted to access the air filter.
6
Foot
The oven rests on a high quality plastic foot extending over the whole length of the appliance.
7
Base plate
The metal base plate carries all oven components.
8
Back panel
The back panel shows a grille permitting ventilation
of the oven interior.
10
Cavity
The cavity (cooking chamber) for cooking food can
be accessed by opening the oven door.
11
Door hinge assembly
The door hinges interact with the microswitches /
interlocks.
12
Door microswitch(es) / interlock(s)
The microswitches / interlocks are connected to the
door hinges and switch off the magnetron(s) when
the oven door is opened.
13
Cooling fan
The cooling fan pulls air through the air filter into the
interior of the casing in order to cool the electrical
components.
14
Convection (hot air) fan motor speed controller
This component controls the speed of the convection fan motor depending on specific oven settings.
15
Transformer (high voltage) (2000W e2s variant: 2x) A high voltage transformer feeds a magnetron.
16
Convection (hot air) fan motor
The convection fan motor is controlled by the speed
controller and drives the convection fan.
17
Exhaust pipe
The exhaust pipe leads excessive steam from the
cavity to the cooling duct and the rear air outlet of the
oven.
18
Cooling duct
The cooling duct leads heat generated by the
magnetron(s) to the rear of the oven.
19
Transformer (low voltage - SRB)
The low voltage transformer feeds the SRB.
20
Magnetron (high voltage) (2000W e2s variant: 2x)
A magnetron generates microwaves.
21
Waveguide (2000W e2s variant: 2x)
A waveguide leads microwaves from a magnetron
into the cavity.
22
Capacitor (high voltage) (2000W e2s variant: 2x)
The capacitor completes the magnetron circuit for
required high voltage.
23
Stirrer motor (2000W e2s variant: 2x)
A stirrer motor turns a stirrer distributing microwave
energy in the cavity.
24
Smart Relay Board (SRB)
The SRB controls all electrical oven components.
25
Loudspeaker
The loudspeaker produces sound signals (e.g.
cooking process completed) and can be deactivated.
26
Diode (high voltage) (2000W e2s variant: 2x)
The diode completes the magnetron circuit for
required high voltage.
9
eikon e2s Service and Repair Manual UL
141
12 Replacing components
Item
Name
Function
28
Cavity thermostat (cavity overheat stat)
The thermostat continuously measures the temperature in the cavity and prevents it from overheating.
29
Cavity temperature sensor wire (thermocouple)
entering the cavity
The sensor wire extends between the thermostat
and the interior of the cavity.
30
Protective earth
Some components are earthed at the metal base
plate of the oven.
31
Electromagnetic Compatibility (EMC) Filter (2000W
e2s variant: 2x)
EMC filters reduce the transfer of electromagnetic
noise between the drive (convection fan motor and
motor speed controller) and the mains power supply.
32
Fuses
The fuses protect the oven from high voltages/currents.
33
Gland power supply cable
34
Equipotential bonding connection (CE appliances
only)
27
This is an electrical connection that ensures that the
frames of electrical equipment and any external
conductive components are at an equal (or practically equal) potential.
Tools required











M5.5 hex socket wrench / nut runner
M7 hex socket wrench / nut runner
M7 hex socket wrench / ring spanner
M8 hex socket wrench / nut runner
Stanley knife (for cutting tape)
Long handled Pozidriv screwdriver PZ1
Long handled Pozidriv screwdriver PZ2
Flat screwdriver or lever
Pliers (or M14 ring spanner)
Two metal pins (length: 10 mm / 0.4 in)
Hammer (for removing pressed screws from a spare magnetron)
eikon e2s Service and Repair Manual UL
142
12 Replacing components
12.3 Removing / fitting the casing
Tools required
M5.5 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
Removing the panels of the casing
Overview of all M5.5 hex head flange bolts securing the panels of the casing.
eikon e2s Service and Repair Manual UL
143
12 Replacing components
1.
Remove top panel first.
Unfasten three M5.5 hex head flange bolts at the back panel of
the appliance attaching the top panel to the back panel.
Slide the top panel towards the back of the appliance and remove
it.
2.
Removing the side panels:
Unfasten six M5.5 hex head flange bolts (three per side) at the
back panel of the appliance attaching each side panel to the back
panel.
Slide the left and/or right side panel towards the back of the
appliance and remove it/them.
3.
Removing the back panel:
Unfasten four M5.5 hex head flange bolts attaching the back
panel to the cooling duct (two bolts) and bottom panel (two bolts)
of the appliance.
Move the back panel up and remove it.
eikon e2s Service and Repair Manual UL
144
12 Replacing components
Fitting the panels of the casing
Follow the steps in the reverse order to fit the panels of the casing.
eikon e2s Service and Repair Manual UL
145
12 Replacing components
12.4 Removing / fitting the door assembly
Component
Tools required
Two metal pins (length: 10 mm / 0.4 in)
M5.5 hex socket wrench
M8 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
Removing components of the door assembly
1.
eikon e2s Service and Repair Manual UL
Insert one suitable metal pin (length: 10 mm / 0.4 in) per door
hinge into the corresponding holes marked up in the image to lock
the door hinge.
Ensure the pins remain in this position until the door is fitted to the
oven again.
146
12 Replacing components
2.
Tilt the oven door to an angle of approx. 30° relative to the
ground.
3.
Remove the door assembly from the oven performing a rotational
movement of lifting the door up and pulling it away from the
casing.
4.
Unfasten two M5.5 hex head flange bolts next to the door hinges
to remove the cover panel from the door frame.
eikon e2s Service and Repair Manual UL
147
12 Replacing components
5.
Turn the door assembly around.
Slide the cover panel away from the door handle to remove it from
the door frame.
6.
Remove the two thermal insulation pads located between the
springs attached to the door hinges and the door handle.
7.
Unfasten two M8 hex cap screws on each side.
Detach the door handle.
eikon e2s Service and Repair Manual UL
148
12 Replacing components
8.
Remove all insulation pads/mats from the door.
9.
Unfasten two M8 hex cap screws.
10.
Remove/replace the door hinge units if required.
eikon e2s Service and Repair Manual UL
149
12 Replacing components
Fitting the components of the door assembly
Follow the steps in the reverse order to reassemble the components of the oven door and to fit it to the oven.
NOTE:
Carefully refit the insulation pads/mats to their original positions.
eikon e2s Service and Repair Manual UL
150
12 Replacing components
12.5 Replacing a magnetron
Component
The magnetron(s) is/are located on top of the cavity and is/are
fixed to the cooling duct and the cavity roof.
The 2000W e2s variant comprises two magnetrons located on
the left and right hand sides of the cooling duct.
The cooling duct covers one side of the magnetron where the
magnetron is attached to the cavity roof with two screws.
The image shows a single magnetron 1000W e2s variant.
eikon e2s Service and Repair Manual UL
151
12 Replacing components
The outlet of the cooling duct carries heat to the back of the oven
and is covered by a grille.
The outlet comprises a sheet metal frame containing holes
corresponding to the positions of Pozidriv screws securing the
cooling duct to the magnetron.
Use these holes for guiding the Pozidriv screwdriver.
Tools required
Hammer or similar tool
PZ2 Pozidriv screwdriver
M8 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The top, left and right panels of the casing of the appliance have been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
152
12 Replacing components
Preparing a spare magnetron
1.
The spare magnetron comes with four pressed bolts. Remove the
bolts before fitting the magnetron to the oven.
NOTE:
The bolts can be removed by knocking them out of the tabs with a
hammer.
Ensure the tabs do not get bended. Secure them by laying them
upon a piece of tube while pushing out the screws.
CAUTION:
Wear personal protective equipment to protect your fingers when
using the hammer.
2.
Comparison of spare magnetrons with (right) and without (left)
pressed bolts.
Removing a magnetron
1.
Unfasten two Pozidriv screws on the right side of the cooling duct
with a long PZ2 Pozidriv screwdriver using the corresponding
access holes at the cooling duct (when looking at the back side of
the oven).
NOTE:
The picture shows the right side of the cooling duct seen from the
outlet of the ducting.
eikon e2s Service and Repair Manual UL
153
12 Replacing components
2.
Unfasten one Pozidriv screw on the left side of the cooling duct
with a long PZ2 Pozidriv screwdriver using the corresponding
access hole at the cooling duct (when looking at the back side of
the oven).
NOTE:
The number of screws on the left side of the cooling duct depends
on the number of magnetrons fitted.
One magnetron (1000W e2s variant): one screw
Two magnetrons (2000W e2s variant): three screws
NOTICE:
When detaching the cooling duct be careful not to damage the
exhaust pipe leading into the duct.
eikon e2s Service and Repair Manual UL
154
12 Replacing components
3.
Unfasten four M8 hex cap screws to remove the magnetron.
There is one pair of screws on each side of the magnetron.
Disconnect any cables leading into the magnetron(s).
Fitting a magnetron
Follow the steps in the reverse order to fit a spare magnetron.
Ensure nothing becomes trapped under the magnetron mounting points (e. g. insulation material) while
fitting the magnetron. This can lead to microwave leakage.
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
155
12 Replacing components
12.6 Replacing the cooling fan
Component
The cooling fan is located under the cavity and can be accessed
by removing the convection fan motor speed controller.
Tools required
M7 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The top and side panels of the casing of the appliance have been removed.
 The cooling fan speed controller is removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
156
12 Replacing components
Removing the cooling fan
1.
Unplug the electrical connection of the cooling fan on the right
hand side of the appliance.
2.
Unfasten two M7 hex nuts each securing one arm of the sheet
metal bracket which holds the cooling fan.
Then turn the bracket clockwise.
3.
Twist and remove the cooling fan via the left hand side of the oven
(when looking at the oven from the front).
Fitting the cooling fan
Follow the steps in the reverse order to fit the cooling fan.
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
157
12 Replacing components
12.7 Replacing the QTS (Quick Touch Screen) assembly
Component
Top section (picture on the left):
The QTS (Quick Touch Screen) board lies behind the
easyToUCH screen and is attached to the front panel of the oven.
Bottom section (picture on the left):
The much larger SRB (System Relay Board) extends over the
whole width of the oven and rests in a tilted position close to the
front panel of the oven. It is mounted to the frame of the casing.
Tools required
M5.5 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The top and side panels of the casing of the appliance have been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
158
12 Replacing components
Removing the QTS assembly
1.
Disconnect all cables connecting the QTS assembly to the SRB.
2.
Remove the top front panel (including the touchscreen and QTS
assembly) from the frame of the casing:
Unfasten two M5.5 hex head flange bolts fixing the front panel to
the sheet metal frame.
eikon e2s Service and Repair Manual UL
159
12 Replacing components
3.
eikon e2s Service and Repair Manual UL
1) Slide the front panel upwards.
2) Then carefully pull the front panel away from the sheet metal
frame.
Double check that all cables connecting the QTS assembly to the
SRB have been removed.
160
12 Replacing components
4.
Unfasten four M5.5 hex head flange bolts to remove the QTS
assembly from the front panel.
5.
Lift out the QTS assembly.
6.
Remove the PM (Personality Module) from the QTS and place
safely aside.
NOTICE:
Do not use tools to remove or refit the Personality Module.
eikon e2s Service and Repair Manual UL
161
12 Replacing components
Fitting the QTS assembly
Follow the steps in the reverse order to fit the QTS assembly.
Reconnect all electric connections to the QTS board.
Fit the PM removed from the old QTS to the new QTS.
Reason: Replacement QTS / SRB units come WITHOUT Personality Modules as they store individual
settings saved by the user.
For details see “QTS Terminal Locations” (“Circuit diagrams” section).
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
162
12 Replacing components
12.8 Replacing the SRB (Smart Relay Board)
Component
Bottom section (picture on the left):
The much larger SRB (System Relay Board) extends over the
whole width of the oven and rests in a tilted position close to the
front panel of the oven. It is mounted to the frame of the casing.
Top section (picture on the left):
The QTS (Quick Touch Screen) board lies behind the
easyToUCH screen and is attached to the front panel of the oven.
Tools required
M7 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The side and top panels of the casing of the appliance have been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
Removing the SRB
1.
Disconnect all cables connecting the SRB to other components.
2.
Unfasten two M7 hex head flange bolts to remove the SRB from
the frame of the casing.
eikon e2s Service and Repair Manual UL
163
12 Replacing components
3.
Remove the PM (Personality Module) from the SRB and place
safely aside.
NOTICE:
Do not use tools to remove or refit the Personality Module.
Fitting the SRB
Follow the steps in the reverse order to fit the SRB.
Reconnect all electric connections to the SRB.
For details see “SRB Terminal Locations” (“Circuit diagrams” section).
1.
Ensure the thermocouple negative (-) connection (white) and positive (+) connection
(green) are fitted the correct way round or the oven temperature readings will be wrong.
2.
Refit the Personality Module (PM) removed from the old SRB to the new SRB.
Reason: Replacement QTS / SRB units come WITHOUT Personality Modules as the PMs
store individual settings saved by the user.
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
164
12 Replacing components
12.9 Replacing the touchscreen overlay
Component
Tools required
M5.5 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
165
12 Replacing components
Removing the touchscreen overlay
1.
The touchscreen overlay can be removed without removing the
side or back panels of the casing. There is an access hole for a
locking screw underneath the front panel.
Release the screw using a M5.5 hex socket wrench.
2.
Slide the touchscreen element to the left and detach it from the
frame of the casing.
NOTICE:
Mind the cables attached to the QTS assembly.
Fitting the touchscreen overlay
Follow the steps in the reverse order to fit the touchscreen overlay.
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
166
12 Replacing components
12.10 Adjusting the door microswitches / interlocks
Component
Adjust the microswitches after replacing old with new door
hinges.
Micro-switch alignment is NOT required if just refitting the same
door.
Tools required
M7 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The top and side panels of the casing of the appliance have been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
Adjusting the door microswitches
1.
Located on the door hinges are 3 safety interlock microswitches,
to prevent microwave emissions escaping when the oven door is
opened:
The primary microswitch (SW3) breaks the electrical supply
circuit to the transformers.
The secondary microswitch (SW2) breaks the microwave circuit if
the primary fails.
The monitor switch (SW1) will short out the microwave circuit
blowing the fuse if both primary and secondary interlocks fail.
IMPORTANT:
In the event that the monitor switch causes the microwave circuit
fuse to blow, the secondary (SW2) and monitor (SW1)
microswitches must be replaced due to exposure to high
short-circuit currents.
The purpose of the following adjustment procedure is to set the
interlock to switch off the microwave circuit when the door is
opened more than 4 mm and for the microwave circuit to operate
when the door is closed and the door seal expands.
2.
eikon e2s Service and Repair Manual UL
Position green 2 mm spacers over the top corners of the door
seal. Then carefully close the door ensuring the spacer is still in
position.
167
12 Replacing components
3.
Slacken the pivot screw using a M7 hex socket wrench.
4.
Release the adjusting screws and move the backplate until
microswitch SW3 just activates. Then secure all screws.
5.
Open the appliance door to replace the green 2 mm spacers with
red 4 mm spacers and close the door.
6.
Slacken the pivot screw.
7.
Release the adjusting screws and move the backplate until
microswitch SW2 just activates. Then secure all screws.
8.
Remove the spacers, then open and close the appliance door
5-10 times.
IMPORTANT:
Check if the switches operate in the following sequence as microswitch SW3 must switch the load
current.
Closing the door:
 SW1 opens first
 SW2 closes second
 SW3 closes third
oven door open
Opening the door:
 SW3 opens first
 SW2 opens second
 SW1 closes third
oven door closed
eikon e2s Service and Repair Manual UL
168
12 Replacing components
12.11 Replacing the stirrer motor
Component
Tools required
M5.5 hex socket wrench
M7 hex socket wrench
Pozidriv PZ1 screwdriver
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The casing of the appliance has been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
169
12 Replacing components
Removing the stirrer motor
1.
Unfasten two M5.5 hex head flange bolts to remove the
jet/impinger plate from the roof of the cavity.
NOTE:
At the rear the jet/impinger plate rests in a bracket.
2.
Remove the jet/impinger plate from the cavity.
3.
Unfasten sixteen (16) M7 hex nuts.
Be careful not to lose the washers.
eikon e2s Service and Repair Manual UL
170
12 Replacing components
4.
Remove the partition plate from the cavity.
NOTE:
The partition plate features a rubber gasket on the side pointing
upwards (to the stirrer) when mounted.
The rubber gasket prevents grease laden air from soiling the
stirrers and needs to be intact at any time.
5.
The image shows the 1000W e2s variant equipped with one
stirrer/stirrer motor.
The 2000W e2s variant has a second stirrer/stirrer motor in the
right niche.
6.
After removing the partition plate the stirrer motor on top of the
cavity can be dismounted using a Pozidriv PZ1 screwdriver.
NOTE:
The threads at the stirrer motor are locked with Loctite.
eikon e2s Service and Repair Manual UL
171
12 Replacing components
Fitting the stirrer motor
Follow the steps in the reverse order to fit the stirrer motor.
IMPORTANT:
 When refitting the partition plate fasten the screws on opposite corners/sides in turns and do NOT
proceed stringently clockwise or anti-clockwise.
 Tighten the partition plate screws to 2.1 Nm of torque.
 Tighten the jet/impinger plate screws to NO more than 1.8 Nm of torque.
eikon e2s Service and Repair Manual UL
172
12 Replacing components
12.12 Replacing the convection fan motor
Component
Tools required
M7 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 All panels of the casing of the appliance have been removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
173
12 Replacing components
Removing/fitting the convection fan motor
1.
Identify ten screws fixing the plate carrying the convection fan
motor to the rear of the cavity.
There are three screws close to the horizontal edges and two
screws close to the vertical edges.
Carefully cut the tape covering the insulation mat with a knife to
access the screws.
Unfasten ten M7 hex head flange bolts to remove the plate with
the convection fan motor.
CAUTION:
Wear personal protective equipment to protect your fingers when
using the knife.
NOTE:
The exhaust pipe is also connected to the rear plate. Be careful
not to damage it when lifting out the plate.
2.
eikon e2s Service and Repair Manual UL
After replacement carefully refit all screws following the instructions given above.
Restore the tape sealing using heat-resistant tape recommended
by the manufacturer.
174
12 Replacing components
12.13 Replacing a transformer (high voltage)
Component
1000W e2s variant: one high voltage transformer feeding the
magnetron.
2000W e2s variant: two high voltage transformers side by side.
Tools required
M8 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The casing of the appliance is removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
eikon e2s Service and Repair Manual UL
175
12 Replacing components
Removing a transformer (high voltage)
1.
Unplug all electric connections of the transformer(s).
2.
Disconnect the transformer(s) from the magnetron(s) by unplugging the orange cables at the magnetron(s).
eikon e2s Service and Repair Manual UL
176
12 Replacing components
3.
Unfasten two M8 nuts and washers to remove a transformer.
CAUTION:
The transformer is heavy.
Wear safety shoes to protect your feet from a transformer falling
down.
Fitting a transformer (high voltage)
Follow the steps in the reverse order to fit the high voltage transformer(s).
NOTICE:
If the electric connections have not been restored properly this may lead to malfunction/damage of the
oven.
eikon e2s Service and Repair Manual UL
177
12 Replacing components
12.14 Removing the convection fan motor speed controller
Component
Remove the convection fan motor speed controller to access the
cooling fan located behind it.
Tools required
M5.5 hex socket wrench
Requirements
Check that the following requirements have been met:
 The appliance has been disconnected from the power supply and protective measures have been
taken to ensure the power cannot be switched on again.
 The appliance is cool.
 The casing of the appliance is removed.
 The high voltage capacitors are discharged before commencing work.
 Anti-static precautions have been taken.
Removing/fitting the convection fan motor speed controller
1.
Unplug all electric cables connected to the convection fan motor
speed controller.
2.
Unfasten one M5.5 hex head flange bolt to detach the convection
fan motor speed controller.
3.
After replacement of the cooling fan reconnect the cables to the
convection fan motor speed controller and refit the retaining
screw.
Ensure the wiring of the speed controller is in accordance with the
diagram below.
NOTE:
Incorrect wiring can lead to the convection fan motor running in
reverse which will cause issues with cooking performance.
eikon e2s Service and Repair Manual UL
178
12 Replacing components
eikon e2s Service and Repair Manual UL
179
12 Replacing components
12.15 Overview - further components
Removable diffuser in the cavity (optional)
The rear air diffuser plate in the cavity is a customer option.
It prevents large foodstuff from hitting the rear of the cavity.
Protective earth - connections to casing
eikon e2s Service and Repair Manual UL
180
12 Replacing components
Electromagnetic Compatibility (EMC) Filter(s)
Top: one EMC filter unit (1000W e2s variant)
Bottom: two EMC filter units (2000W e2s variant)
Diode(s) (high voltage)
Top: one high voltage diode (1000W e2s variant)
Bottom: two high voltage diodes (2000W e2s variant)
eikon e2s Service and Repair Manual UL
181
12 Replacing components
Exhaust pipe
The exhaust pipe leads steam from the cavity to the cooling duct
and the rear outlet of the oven.
eikon e2s Service and Repair Manual UL
182
12 Replacing components
Cavity thermostat and cavity temperature sensor (thermocouple)
The cavity thermostat is located besides the cooling duct on the
left hand side of the oven (when looking at the oven from the
rear). It continuously measures the temperature in the cavity and
prevents the cavity from overheating.
Measuring is done by a temperature sensor (thermocouple)
which is essentially a wire extending between the cavity thermostat and the interior of the cavity.
This temperature sensor wire runs along the left vertical edge of
the cavity being attached to the cavity insulation with
heat-resistant tape.
Transformer (low voltage)
The low voltage transformer is located besides the cooling duct
on the left hand side of the appliance.
eikon e2s Service and Repair Manual UL
183
12 Replacing components
Capacitor(s) (high voltage)
The high voltage capacitor is located on top of the cavity and is
fixed by a sheet metal bracket.
The 2000W e2s variant comprises two high voltage capacitors
each attributed to a magnetron.
Mains cable entering the interior
Cavity high limit
The cavity high limit (cavity temperature limiter) can be accessed
via the rear panel on the left hand side of the grille.
Reset procedure:
 Remove the pictured M5.5 hex head flange bolt.
 Insert a terminal screwdriver (or similar) into the hole and push
in the button to reset.
 After reset refit the M5.5 hex head flange bolt.
NOTE:
No live terminals are accessible through this port.
The panels of the casing do not need to be removed.
eikon e2s Service and Repair Manual UL
184
13 Circuit boards and diagrams
13 Circuit boards and diagrams
Page
186
189
SRB / QTS circuit boards
Circuit diagrams
eikon e2s Service and Repair Manual UL
185
13 Circuit boards and diagrams
13.1 SRB / QTS circuit boards
SRB LEDs




P-Bus – irregular flashing, indicating data communication with QTS.
Run – Pulsing 1 second flash, indicating that the board has booted up.
12V and 5V – lit to show voltage outputs from inboard transformer.
Relay and Triac – lit to show that a signal has been sent to energise that component.
eikon e2s Service and Repair Manual UL
186
Item
Name
1
Cooling fan
2
Convection fan
3
Stirrer
4
5V supply
5
12V supply
6
Heater safety
7
Heater drive
8
P-Bus: flashes when data is being
sent / received.
RUN: 1 second flash.
9
Oven door
10
Microwave safety relay
11
Microwave 2 drive
12
Microwave 1 drive
13
LED (lit to show that a signal is
received via overheat trips).
If lit it is ok.
13 Circuit boards and diagrams
SRB Terminal Locations
Item Name
eikon e2s Service and Repair Manual UL
187
1
X3 – output for e2s convection fan motor
speed controller.
2
X101 – voltage selection relay coil feeds.
(US version only)
3
X18b – air filter reed switch.
4
X18e – right magnetron overheat thermostat.
5
X18d – left magnetron overheat thermostat.
6
X18c – cavity overheat thermostat.
7
X18a – On/Off switch.
8
X14 – cavity temperature temperature
sensor (thermocouple).
9
X5 – fan RPM input.
10
X13 – P Bus, ethernet port.
11
X12 – C Bus, development PC port.
12
X11 – P/C Bus, BTS cable.
13
X1 – 24V supply from low voltage
transformer.
14
X8 – cooling fan.
15
X17 – not used.
16
X20 – microwave stirrers.
17
X9 – mains output, convection fan
controller.
18
X103.1 – mains output to low voltage
transformer.
19
X103 – mains input, live and neutral.
20
X2.1 – mains input, live for heaters.
21
X2.2 – mains output, live to heaters.
22
X102a – mains input, neutral for magnetron transformers and monitor door
switch.
23
X102b – mains output, neutral to magnetron transformers and monitor door
switch.
24
X4a – door switch signal from secondary
door switch (live for magnetron transformers).
25
X10 – connector block for door switches.
26
X4b – live for magnetron transformers
13 Circuit boards and diagrams
QTS LEDs





Run – pulsing 1 second flash, indicating that the board has booted up.
Power – lit to show that there is a power supply from the SRB.
P-Bus – irregular flashing, indicating data communication with SRB.
C-Bus – lit to show data being loaded from the Personality Module (PM) onto the QTS.
LD5 – lit to show that a USB memory stick is fitted.
QTS Terminal Locations
eikon e2s Service and Repair Manual UL
188
Item
Name
1
LD5
2
Power, Run, P-Bus, C-Bus
3
X6 – speaker
4
X5 – USB socket
5
X4 – communications to
SRB
6
X11 – screen backlight
7
X13 – touch pad
8
X9 – display screen PCB
13 Circuit boards and diagrams
13.2 Circuit diagrams
e2s wiring diagram 60Hz 208/240V
eikon e2s Service and Repair Manual UL
189
13 Circuit boards and diagrams
eikon e2s Service and Repair Manual UL
190
14 Commissioning the appliance
14 Commissioning the appliance
Recommission Test: Recommissioning the appliance after service/repair
The Recommission Tests are performed following the completion of a service or repair to ensure that the
appliance is working correctly before handing back to the customer.
Some of the tests have a countdown timer where failing to carry out a test within the time limit will cause
a test failure and the Recommission Test will have to be restarted.
1.
Select ‘Recommission Test’ from the Service Mode oven tests
and follow the on screen instructions to perform the tests.
Do not select the red ‘X’ unless you want to stop the test.
2.
After a test has successfully passed, select the green check mark
to continue.
3.
When all the tests have been successfully performed the display
shows the Recommission Test has passed.
Select the green check mark to confirm.
4.
In the event of a Recommission Test failure, the detail will be
recorded in the Error Log.
Rectify any error and repeat the Recommission Test.
eikon e2s Service and Repair Manual UL
191
14 Commissioning the appliance
Commissioning the oven after service/repair/testing
Complete the following checks after the oven has been serviced/repaired/tested before connecting to
the mains electricity power supply:
1.
All internal electrical connections are correct (see "Electrical circuit diagrams").
2.
All wiring insulation is correct and is not touching any sharp edges.
3.
All grounding connections are electrically and mechanically secure.
4.
All door safety interlocks are secure and mechanically sound.
5.
The door activates all of the door interlock switches and in the correct order.
6.
The door operation is smooth, and the arms run freely in the slots.
7.
The temperature sensor (thermocouple) is correctly connected to the SRB.
8.
The casing is securely refitted with no trapped wires.
Before finishing a service call, recheck the following points:
9.
Run the recommission tests to ensure the oven is functioning correctly and the
touch screen is working.
10.
Microwave emissions are below the permissible limit of 5 mW/cm².
11.
The power output of the oven is checked in accordance with the procedure.
12.
The oven has a correct air gap of 50 mm / 2 inches above.
Air flow should not be restricted.
13.
Complete the service report.
eikon e2s Service and Repair Manual UL
192
Microwave Combination Oven
Merrychef eikon e2s
Part Number 32Z3936
Preliminary Version – 07/2015
© 2015 Manitowoc Foodservice Inc. except where explicitly stated otherwise. All rights reserved.
Download PDF
Similar pages