Moffat E25MS Service manual

E25 CONVECTION OVEN
E25MS CONVECTION OVEN
SERVICE
MANUAL
E25 Convection Oven
Revision 6/F3501
-1-
© Moffat Ltd, August 2006
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
CONTENTS
This manual is designed to take a more in depth look at the E25 convection oven for the purpose of
making the unit more understandable to service people.
There are settings explained in this manual that should never require to be adjusted, but for
completeness and those special cases where these settings are required to change, this manual
gives a full explanation as to how, and what effects will result.
SECTION
PAGE NO.
1.
SPECIFICATIONS......................................................................................................... 5
2.
INSTALLATION............................................................................................................. 7
3.
OPERATION .................................................................................................................. 8
3.1
3.2
3.3
4.
Description of Controls—E25
Description of Controls—E25B
Explanation of Control System
MAINTENANCE............................................................................................................. 12
4.1
4.2
Cleaning
Routine Procedures
5.
TROUBLE SHOOTING GUIDE..................................................................................... 13
6.
SERVICE PROCEDURES ............................................................................................. 16
6.1
6.2
6.3
6.4
7.
ELECTRICAL SCHEMATICS ....................................................................................... 30
7.1
7.2
8.
E25
E25B
ELECTRICAL WIRING DIAGRAMS ............................................................................. 32
8.1
8.2
8.3
9.
Fault Diagnosis
Access
Replacement
Adjustment / Calibration
E25 (220 - 240V)
E25 (110V)
E25B
SPARE PARTS.............................................................................................................. 36
IMPORTANT: MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS.
E25 Convection Oven
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© Moffat Ltd, August 2006
10.
ACCESSORIES / OPTIONS ......................................................................................... 37
11.
PARTS DIAGRAM ........................................................................................................ 38
11.1
11.2
11.3.1
11.3.2
11.4.1
11.4.2
11.5
12.
Main Assembly - E25
Main Assembly - E25B
Control Panel Assembly - E25
Control Panel Assembly - E25B
Control Panel Assembly - E25MS
Control Panel Assembly - E25BMS
Door Assembly - E25MS
SERVICE CONTACTS.................................................................................................. 47
APPENDIX A. DOUBLE STACKING KIT .............................................................................. 49
E25 Convection Oven
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© Moffat Ltd, August 2006
1. SPECIFICATIONS
600
600
(23.6)
430
429
720
720
(28.4)
1
E
1
48
47
625
626
45
(1.9)
(24.6)
(1.75)
E
124
124
111
111
395
395
(4.9)
(4.4)
(15.5)
FRONT
(16.9)
MODEL: E25 / E25B
SIDE
1
E
PLAN
LEGEND
- Electrical connection entry point
Dimensions shown in millimetres.
Dimensions in inches shown in brackets.
E25 Convection Oven
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© Moffat Ltd, August 2006
LOCATION
To ensure correct ventilation for the motor and
controls the following minimum installation
clearances are to be adhered to:
Top
Rear
Left-hand side
Right-hand side
200mm / 8”
25mm / 1”
25mm / 1”
25mm / 1”
OVEN INTERNAL DIMENSIONS
Width
470 mm / 18.5”
Height
254 mm / 10.0”
Depth
420 mm / 16.5”
Oven Volume 0.05 m³ / 1.75 ft³
OVEN RACK SIZE
Width
460 mm / 18”
Depth:
370 mm / 14.5”
ELECTRICAL SUPPLY SPECIFICATION
OPTIONS
E25
100-120V ac, 60Hz, 13.3A, 1.6kW @ 120V
220-240V ac, 50/60Hz, 8.5A, 2.05kW @ 240V
E25B
100-120V ac, 60Hz, 17.1A, 2.05kW @120V
ELECTRICAL PLUG SPECIFICATION
REQUIREMENTS
E25
Australia
3-pin 250V 10A, AS/NZ 3112
Canada
3-pin 120V 15A, NEMA 6-15
New Zealand 3-pin 250V 10A, AS/NZ 3112
United Kingdom 3-pin 250V 13A fused, BS
1363A
United States 3-pin 120V 15A, NEMA 6-15
Other Countries 3-pin 250V 10A minimum,
type to meet country
standards
E25B
Canada
United States
3-pin 120V 20A, NEMA 6-20
3-pin 120V 20A, NEMA 6-20
E25 Convection Oven
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© Moffat Ltd, August 2006
2. INSTALLATION
WARNING: THIS APPLIANCE MUST BE GROUNDED.
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
It is most important that the oven is installed
correctly and that the operation is correct
before use. Installation shall comply with local
electrical, health and safety requirements.
BEFORE USE
BEFORE CONNECTION TO POWER
SUPPLY
ELECTRICAL CONNECTION
Operate the oven for about 1 hour at 200°C
(400°F) to remove any fumes or odours which
may be present.
E25 convection ovens are supplied with
pre-fitted cords. Ensure unit is fitted with the
correct cord and plug for the installation.
Refer specifications section.
Should changing of the cord be necessary,
gain access to the electrical connection
terminal block, grounding lug, and strain relief
by removing the back panel (four screws).
Unpack and check unit for damage and report
any damage to the carrier and dealer. Report
any deficiencies to your dealer. Check that
the available power supply is correct to that
shown on the rating plate located on the righthand side panel.
E25
100-120V ac, 60Hz, 13.3A, 1.6kW @ 120V
220-240V ac, 50/60Hz, 8.5A, 2.05kW @ 240V
L1
L2
Phase
Neutral
RED
BROWN
BLACK
E25B
100-120V ac, 60Hz, 17.1A, 2.05kW @120V
Ground
BLACK
BLUE
WHITE
GREEN
GREEN/YELLOW
WARNING: THIS APPLIANCE MUST
BE GROUNDED / EARTHED
LOCATION
Figure 2.1
To ensure correct ventilation for the motor,
and controls the following minimum
installation clearances are to be adhered to:
Top
Rear
Left-hand side
Right-hand side
RATING PLATE LOCATION
The rating plate for the E25 convection oven
is located at the bottom left corner of the RH
side panel.
200mm / 8”
25mm / 1”
25mm / 1”
25mm / 1”
IMPORTANT:
THE OVEN VENT
LOCATED ON THE CABINET TOP
MUST NEVER BE OBSTRUCTED.
Position the oven in its allocated working
position. Use a spirit level to ensure the oven
is level from side to side and front to back. (If
this is not carried out, uneven cooking could
occur). The feet used with bench mounting or
provided with stands are adjustable and will
require adjusting in levelling the unit. It should
be positioned so the operating panel and oven
shelves are easily reachable for loading and
unloading.
E25 Convection Oven
Revision 6/F3501
Rating Plate
Figure 2.2
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© Moffat Ltd, August 2006
3. OPERATION
NOTE: A full user’s operation manual is supplied with the product and can be used for further
referencing of installation, operation and service.
3.1 DESCRIPTION OF CONTROLS - E25
1. POWER
Depress to switch power on or off (switch
illuminates when power is on).
2. THERMOSTAT
Temperature range 50 - 250°C (120 - 480°F).
Indicator illuminates when elements are cycling
ON to maintain set temperature.
1
3. BAKE TIMER
1 Hour bake timer.
(Indicator illuminates when
reached, and buzzer sounds).
“time
up”
(0)
4. LIGHT SWITCH
Push switch to activate light.
(Oven light illuminates while button depressed).
2
3
4
E25 Convection Oven
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© Moffat Ltd, August 2006
3.2 DESCRIPTION OF CONTROLS - E25B
1. POWER
Depress to switch power on or off (switch
illuminates when power is on).
2. THERMOSTAT
Temperature range 50 - 270°C (120 - 525°F).
(Indicator illuminates when elements are cycling
ON to maintain set temperature.
1
BROIL POSITION (E25B Only) - The BROIL
indicator will illuminate indicating that the
BROIL function has been set. The HEATING
indicator will also illuminate whenever the elements are on.
3. BAKE TIMER
1 Hour bake timer.
(Indicator illuminates when
reached, and buzzer sounds).
2
“time
up”
(0)
4. LIGHT SWITCH
Push switch to activate light.
(Oven light illuminates while button depressed).
3
4
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
3.3
a capillary type thermostat which can be set to
a required cooking temperature. The E25B
also features a Broil position to provide top
browning or broiling in the oven.
EXPLANATION OF CONTROL
SYSTEM
The E25 and E25B Turbofan convection
ovens feature multi-function operator controls
for which a correct understanding of their
operation is required before carrying out any
service or fault repair work. The control
device functions are explained as follows:
The E25 has an element coiled around the
circulation fan in the rear of the oven. Power
to the element is provided directly from the
thermostat. The control panel indicator light
above the thermostat knob cycles on and off
with the thermostat to indicate when the
element is on and the oven is heating. In the
‘Off’ position, the element relies on the
thermostatic control to prevent it switching on.
Accordingly, if the oven temperature drops
below approximately 20°C the thermostat and
element may cycle on at this setting.
A power switch on the control panel isolates
power to all the controls of the oven. With the
power switch Off all functions of the oven are
inoperable.
NOTE: The supply voltage is fed to the input
side of the heating element power relay on
E25B models whenever the electrical supply
is on.
The E25B features a Broil element (located in
the top of the oven) as well as the fan
element.
The thermostat switch has a
separate switch assembled onto the front of
the shaft assembly. This auxiliary switch,
depending on the thermostat setting, selects
between the fan or broil elements, via a Broil
relay located at the rear of the oven. A
changeover contact on the broil relay
determines which element is provided with
power. In series with the broil relay is a
second relay which is controlled by the main
thermostat switch. This is the heating relay.
One pole of the heating relay switches power
to the fan element, the other pole switches
power to the broil element.
When the
thermostat cycles, both poles are switched
open or closed at the same time. However,
since only one pole is being fed power by the
broil relay, only the selected element cycles
on.
With the power switch On (illuminated) power
is directly supplied to the 60 minute bake
timer, door microswitch, temperature control
circuit, and the light switch. The light switch
will turn the oven light on when the door is
closed, but only whilst the light switch is held
in.
The door microswitch on the E25 oven
controls the oven light only. Accordingly the
light will come on when the door is opened but
the circulation fan and fan element will remain
on. The door microswitch on the E25B oven
however, controls the light, the circulation fan,
and the fan element. Hence, opening the
door on the E25B oven causes the circulation
fan and fan element to switch off, as well as
causing the oven light to come on. (The broil
function incorporated into the E25B oven
requires the fan to be inoperative when
broiling with the door open).
When the E25B thermostat is set to a cooking
temperature, one set of auxiliary switch
contacts remain open. This isolates power
from the coil of the two pole broil relay. In this
state the normally closed contacts of the first
pole provide power directly from the phase
connection on the terminal block to the fan
element pole on the heating relay. (The
normally closed contact on the second pole is
unused with this thermostat setting). The
second set of auxiliary switch contacts is
closed to feed power from the door
microswitch to the main thermostat switch.
When the thermostat cycles on it in turn feeds
power to the coil of the heating relay, causing
the changeover poles to switch. This closes
the normally open contacts and provides
power to the fan element.
When the
thermostat cycles Off it isolates power to the
heating relay coil. This causes the normally
The 60 minute timer is a mechanical timer and
can therefore be operated with the oven’s
power switch On or Off. However, only with
the oven’s power switch On will the switch
contacts of the 60 minute timer turn on the
time-up buzzer and illuminate the time-up
indicator on the control panel. The buzzer
and time-up indicator provide indication that
the time setting has run down to zero and at
this point will remain On continuously until the
60 minute timer has been manually set back
to the Off (vertical) position. The 60 minute
timer does not control any other part of the
oven’s operating system as this timer is
independent of the temperature control and
heating system.
The temperature control of these ovens is with
E25 Convection Oven
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© Moffat Ltd, August 2006
open contacts to reset, thus switching the fan
element off. The control panel indicator light
above the thermostat knob cycles on and off
with the thermostat to indicate when the
elements are on and the oven is heating.
When the E25B thermostat is set to the Broil
position the first set of auxiliary switch
contacts close and the second set open. The
closed contacts provide power to the coil on
the Broil relay. The opened contacts isolate
power from the door microswitch to the main
thermostat switch. With the thermostat in this
setting, power to the coil of the broil relay
causes the changeover contacts on both
poles to switch. The normally closed contacts
of the first pole on the Broil relay open,
isolating power to the fan element. The
normally open contacts of this pole close
providing power instead to the broil element
(via the heating relay). Switching of the
second pole of the Broil relay closes the
normally open contacts, providing power
directly to the main thermostat switch. (This
alternate power supply to the thermostat
allows the Broil element to continue to operate
with the oven door open and fan off). When
the thermostat cycles On it provides power to
the coil of the heating relay. When the
heating relay switches, the normally open
contacts on both poles close. However, with
the thermostat in this position, power is only
being provided to the pole feeding the broil
element so only the broil element cycles On.
When the thermostat cycles Off it isolates
power to the heating relay coil. This causes
the normally open contacts to reset, thus
switching the broil element off again. With the
door closed the broil element will cycle On/Off
thermostatically at 600°F as this is the
thermostat setting in the Broil position. With
the door open the broil element will remain on
continuously and the circulation fan will be
turned off. The main heating indicator will
cycle on and off with the thermostat and broil
element, whilst the broil indicator will remain
illuminated as long as the thermostat is in the
Broil setting.
The following Troubleshooting Guide (pg 13)
should be used to identify any incorrect oven
operation. On correct identification of the
operating fault the Troubleshooting Guide will
make reference to the corrective action
required, or refer to the Fault Diagnosis
section and/or Service section to assist in
correction of the fault.
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
4. MAINTENANCE
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
4.1 CLEANING
OVEN SEALS
To remove, hold at their centre point and pull
forward until they unclip. Remove side seals
first, then top and bottom. The seals may be
washed in the sink, but take care not to cut or
damage them. To replace the top seal,
ensure that the lip is facing the oven opening.
The left, right and bottom seals have the lip
facing out. Fit the top and bottom seals first,
then the side seals.
WARNING: ALWAYS TURN THE
POWER SUPPLY OFF BEFORE
CLEANING.
IMPORTANT: THIS UNIT IS NOT
WATER PROOF.
DO NOT USE A WATER JET SPRAY TO
CLEAN INTERIOR OR EXTERIOR OF
THIS UNIT.
OVEN DOOR GLASS
EXTERIOR
Clean with conventional glass cleaners
Clean with a good quality stainless steel
cleaning compound. Harsh abrasive cleaners
may damage the surface.
4.2 ROUTINE PROCEDURES
INTERIOR
DOOR SEALS
Ensure that the oven chamber is cool. Do not
use wire brushes, steel wool or other abrasive
materials. Clean the oven regularly with a
good quality oven cleaner. Take care not to
damage the fan or the tube at the right side of
the oven which controls the thermostat.
Check for deterioration
12 months
ELEMENTS
Check that element resistances
are correct to their ratings
(refer 6.3.9)
12 months
OVEN RACKS
To remove, slide out to the stop position, raise
the front edge up, and lift out.
BOTTOM BAFFLE
To remove, lift up the tray at the front finger
hole and pull forward out of the oven.
SIDE RACKS
Undo the thumbscrew (anti-clockwise rotation)
securing rack to oven wall, swing rack
towards centre of oven to disengage location
pin at front of side, and pull rack forward to
remove. To replace, engage rack in rear
holes, swing towards side of oven to engage
in front hole, and replace thumbscrew.
FAN BAFFLE
To remove, undo thumbscrew (anti-clockwise
rotation) at top of baffle and remove. Lift
baffle out from rear of oven by tilting forward
while lifting out of location studs at baffle
base. Replace in reverse order.
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
5. TROUBLE SHOOTING
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
FAULT
THE OVEN DOES NOT
OPERATE / START
POSSIBLE CAUSE
REMEDY
The mains isolating switch on
Turn on.
the wall, circuit breaker or fuses
are “off” at the power board.
The power switch on the oven is Depress switch. Switch will
off.
illuminate.
FAN DOESN’T OPERATE
Incorrect electrical supply.
(Refer fault diagnosis 6.1.1)
Ensure electrical supply correct.
Power switch on unit faulty.
(Refer fault diagnosis 6.1.1)
Replace.
(Refer service section 6.3.4)
Door not closed (E25B only).
Close door.
Door microswitch out of adjustment (E25B only).
(Refer fault diagnosis 6.1.2)
Adjust.
(Refer service section 6.4.3)
Door microswitch faulty (E25B
only).
(Refer fault diagnosis 6.1.2)
Replace.
(Refer service section 6.3.2)
Fan motor faulty.
(Refer fault diagnosis 6.1.2)
Replace.
(Refer service section 6.3.11)
Wiring.
Check and tighten any loose
wiring.
OVEN LIGHT NOT
Blown bulb.
ILLUMINATING - DOOR OPEN
Replace.
(Refer service section 6.3.1)
No power to light.
(Refer fault diagnosis 6.1.3)
Correct fault.
Blown bulb.
Replace.
(Refer service section 6.3.1)
Light switch faulty.
(Refer fault diagnosis 6.1.4)
Replace.
(Refer service section 6.3.4)
60 MINUTE TIMER WILL NOT
TIME DOWN
Timer faulty.
Replace.
(Refer service section 6.3.6)
60 MINUTE TIMER
INACCURATE BELOW 20
MINUTES
Timer not set correctly.
For timer settings below 20 minutes, always rotate past 20 minutes, then back to desired time.
Zero (time up) position not set
correctly.
(Refer service section 6.4.4)
OVEN LIGHT NOT
ILLUMINATING - DOOR
CLOSED
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
FAULT
60 MINUTE TIMER NO TIME
UP BUZZER
POSSIBLE CAUSE
REMEDY
Buzzer faulty.
(Refer fault diagnosis 6.1.5)
Replace.
(Refer service section 6.3.5)
Timer not switching on buzzer.
(Refer fault diagnosis 6.1.5)
Replace timer.
(Refer service section 6.3.6)
60 MINUTE TIMER NO TIME
UP INDICATOR
Indicator faulty.
(Refer fault diagnosis 6.1.6)
Replace.
(Refer service section 6.3.3)
NO HEAT
No power to thermostat.
(Refer fault diagnosis 6.1.7)
Identify fault and correct.
Thermostat faulty.
(Refer fault diagnosis 6.1.7)
Replace.
(Refer service section 6.3.7)
Fan element not working.
(Refer fault diagnosis 6.1.10)
Correct element fault.
(Refer Fault: Fan element)
Heating relay faulty - E25B only. Replace.
(Refer fault diagnosis 6.1.7)
(Refer service section 6.3.8)
NO TEMPERATURE
CONTROL
Thermostat faulty.
(Refer fault diagnosis 6.1.8)
Replace.
(Refer service section 6.3.7)
Heating relay faulty - E25B only. Replace.
(Refer fault diagnosis 6.1.8)
(Refer service section 6.3.8)
SLOW RECOVERY
FAN ELEMENT NOT
WORKING
Overloading of oven.
Reduce oven loading.
Electrical supply incorrect.
Check supply voltage is as per
rating plate voltage.
Fan not working.
Check fan operation.
Thermostat calibration.
(Refer fault diagnosis 6.1.9)
Correct calibration.
(Refer service section 6.4.1,
6.4.2)
Element faulty (blown).
(Refer fault diagnosis 6.1.10)
Replace.
(Refer service section 6.3.9)
Faulty thermostat.
(Refer fault diagnosis 6.1.10)
Replace.
(Refer service section 6.3.7)
Heating relay faulty - E25B only. Replace.
(Refer fault diagnosis 6.1.10) (Refer service section 6.3.8)
NO THERMOSTAT HEATING
INDICATOR LIGHT
E25 Convection Oven
Revision 6/F3501
Broil relay faulty - E25B only.
(Refer fault diagnosis 6.1.10)
Replace.
(Refer service section 6.3.8)
Indicator faulty.
(Refer fault diagnosis 6.1.11)
Replace.
(Refer service section 6.3.3)
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© Moffat Ltd, August 2006
FAULT
BROIL ELEMENT NOT
WORKING (E25B ONLY)
POSSIBLE CAUSE
REMEDY
Element faulty / blown.
(Refer fault diagnosis 6.1.12)
Replace.
(Refer service section 6.3.9)
Faulty thermostat.
(Refer fault diagnosis 6.1.12)
Replace.
(Refer service section 6.3.7)
Heating relay faulty
(Refer fault diagnosis 6.1.12)
Replace.
(Refer service section 6.3.8)
Broil relay faulty
(Refer fault diagnosis 6.1.12)
Replace.
(Refer service section 6.3.8)
NO BROIL INDICATOR LIGHT
(E25B ONLY)
Indicator faulty.
(Refer fault diagnosis 6.1.13)
Replace.
(Refer service section 6.3.3)
OVEN OVERHEATS IN BROIL
MODE—DOOR SHUT (E25B
ONLY)
Faulty heating relay.
(Refer fault diagnosis 6.1.14)
Replace.
(Refer service section 6.3.8)
DOOR DOES NOT CLOSE
Tray in way of door.
Correctly position tray in rack.
Door seal obstruction.
Correctly install door seal.
(Refer service section 6.3.14)
Door hinges worn.
Replace.
(Refer service section 6.3.16)
Door hinge counter brackets
worn.
Replace.
(Refer service section 6.3.17)
Door seal damaged.
Replace.
(Refer service section 6.3.14)
Door seal incorrectly fitted.
Correctly install door seal.
(Refer service section 6.3.14)
Power switch faulty.
(Refer fault diagnosis 6.1.15)
Replace.
(Refer service section 6.3.4)
Broil relay faulty (E25B only).
(Refer fault diagnosis 6.1.15)
Replace.
(Refer service section 6.3.8)
Heating relay faulty (E25B
only).
(Refer fault diagnosis 6.1.15)
Replace.
(Refer service section 6.3.8)
DOOR SEAL LEAKS
POWER SWITCH DOES NOT
SWITCH UNIT OFF
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
6. SERVICE PROCEDURES
WARNING: ENSURE POWER SUPPLY IS SWITCHED OFF BEFORE SERVICING.
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
SECTION
6.1
FAULT DIAGNOSIS ..............................................................................................................18
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.1.11
6.1.12
6.1.13
6.1.14
6.1.15
6.2
Oven Does Not Operate / Start............................................................................18
Fan Does Not Operate.........................................................................................18
Oven Light Not Illuminating—Door Open ............................................................18
Oven Light Not Illuminating—Door Closed ..........................................................18
60 Minute Timer No Time Up Buzzer ..................................................................18
60 Minute Timer No Time Up Indicator................................................................19
No Heat................................................................................................................19
No Temperature Control ......................................................................................19
Slow Recovery .....................................................................................................19
Fan Element Not Working....................................................................................20
No Thermostat Heating Indicator.........................................................................20
Broil Element Not Working...................................................................................20
Broil Indicator Not Working ..................................................................................21
Oven Overheats in Broil Mode.............................................................................21
Power Switch Does Not Turn Unit Off .................................................................21
ACCESS ................................................................................................................................22
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.3
PAGE NO.
Control Panel .......................................................................................................22
Service Panel (Rear Panel) .................................................................................22
Baffle ....................................................................................................................22
E25 Control Panel (Rear).....................................................................................22
E25B Control Panel (Rear) ..................................................................................22
REPLACEMENT....................................................................................................................23
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10
6.3.11
6.3.12
6.3.13
6.3.14
6.3.15
6.3.16
6.3.17
Light Bulb / Glass.................................................................................................23
Door Microswitch .................................................................................................23
Indicator Neon Light.............................................................................................23
Power / Lights ......................................................................................................23
Buzzer ..................................................................................................................23
Bake Timer...........................................................................................................24
Thermostat ...........................................................................................................24
Relay ....................................................................................................................24
Element ................................................................................................................24
Fan .......................................................................................................................25
Motor ....................................................................................................................25
Outer Glass ..........................................................................................................25
Inner Glass...........................................................................................................26
Door Seals ...........................................................................................................26
Door Handle .........................................................................................................26
Door Hinges .........................................................................................................26
Hinge Counter Brackets.......................................................................................26
E25 Convection Oven
Revision 6/F3501
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© Moffat Ltd, August 2006
6.4
ADJUSTMENT / CALIBRATION ..........................................................................................28
6.4.1
6.4.2
6.4.3
6.4.4
Thermostat Calibration (E25)...............................................................................28
Thermostat Calibration (E25B) ............................................................................28
Door Microswitch Adjustment ..............................................................................29
60 Minute Timer Zero Position Adjustment..........................................................29
E25 Convection Oven
Revision 6/F3501
-17-
© Moffat Ltd, August 2006
6.1 FAULT DIAGNOSIS
Microswitch
n.c.
6.1.1 OVEN DOES NOT OPERATE / START
Incorrect electrical supply
Check that the voltage across phase and
neutral (L1 and L2) terminals of terminal block
is the voltage as stated on the unit’s electrical
rating plate.
com
Figure 6.1.1
If incorrect, check electrical connection of
supply wiring and / or check electrical supply.
6.1.3 OVEN LIGHT NOT ILLUMINATING—
DOOR OPEN
Power switch faulty
Check if power switch latches. If the switch
does not latch, then switch is faulty—replace.
No power to light
Check the supply voltage across lamp
housing terminals at rear of oven. If the
voltage is correct, replace the bulb (if faulty).
If the bulb is OK, check lamp housing.
Replace if faulty.
With switch latched, check voltage across
terminal one to terminal three or four. If there
is no voltage, check for fault in wiring.
Check voltage across terminal two to terminal
three or four. If there is no voltage, then
switch is faulty—replace.
NOTE:
n.o.
If there is no voltage, check voltage across
micro-switch terminals to neutral.
When power switch is latched, it
should illuminate if operating
correctly.
With the door closed there should be power to
the com terminal and the n.o. terminal.
With the door open there should be power to
the com terminal and the n.c. terminal.
If not, microswitch is faulty—replace.
6.1.2 FAN DOESN’T OPERATE
Fan motor faulty
With door closed, check the supply voltage
across motor terminals. If there is no voltage
then check the electrical connections of supply wiring.
6.1.4 OVEN LIGHT NOT ILLUMINATING—
DOOR CLOSED
If voltage is correct then check the oven fan
for free rotation. Remove any obstruction.
Check voltage to the top terminal of the
switch. If there is no voltage, then check
wiring.
Light switch faulty
If fan is free to spin and the voltage supply is
correct, then the motor is faulty—replace.
With switch depressed, check voltage at
bottom terminal. If there is no voltage, then
replace the switch.
Microswitch out of adjustment - E25B only
Open oven door and manually depress door
microswitch actuator at top right of oven. If
this activates the fan, then the microswitch
actuator arm inside control cavity requires
adjustment.
If voltage is correct, then check wiring to light.
Microswitch faulty - E25B only
6.1.5 60 MINUTE TIMER NO TIME UP
BUZZER
NOTE: Alternately, perform a continuity test
across the terminals with the light
switch depressed.
Check voltage across microswitch terminals to
neutral.
Buzzer faulty
With the door closed there should be power to
the com terminal and the n.o. terminal.
With the door open there should be power to
the com terminal and the n.c. terminal.
With timer in ‘zero’ position, check the buzzer
at bottom of control panel (inside) for voltage
across terminals. If voltage is correct then
buzzer is faulty—replace.
If not, microswitch is faulty—replace.
If there is no voltage, then check wiring.
E25 Convection Oven
Revision 6/F3501
-18-
© Moffat Ltd, August 2006
Thermostat faulty - E25B
Buzzer Terminals
Set thermostat to 200°C or 400°F. With door
closed, check the voltage out of terminal 2 on
the thermostat. If there is no voltage then the
thermostat is faulty—replace.
Buzzer
If the voltage is correct and the heating light is
on then check all wiring to elements.
Figure 6.1.2
Timer not switching on buzzer
Heating relay faulty—E25B
With timer in zero position, check voltage to
input and output terminals of timer. If there is
no voltage at input terminal then check wiring.
Set thermostat to 200°C or 400°F. With door
closed, check voltage to terminal A of heating
relay. If no voltage check wiring. If correct
voltage to A, heating relay is faulty—replace.
If no voltage at output terminal then timer is
faulty—replace.
NOTE: Buzzer and time up indicator will
continue until the timer is manually switched
off (to vertical position).
6.1.8 NO TEMPERATURE CONTROL
Thermostat faulty
With thermostat in ‘off’ position (knob vertical),
slowly turn thermostat up until heating indicator just comes on. Wait for heating indicator
to cycle off. If indicator has not cycled off after 10 minutes then thermostat is faulty—
replace.
NOTE: E25 thermostat may cycle on and off
with the knob set to the ‘off’ position if the
oven temperature is below 20°C.
6.1.6 60 MINUTE TIMER NO TIME UP
INDICATOR
Indicator faulty
With the timer in the zero position, check for
voltage across the indicator light. If correct,
then the indicator light is faulty—replace.
If there is no voltage then check wiring.
Heating relay faulty—E25B
No power to thermostat - E25
With power switch off on control panel, check
for voltage at terminal 6 of heating relay. If
there is voltage then the heating relay is
faulty—replace.
Check voltage to terminal P (top terminal) on
oven thermostat. If there is no voltage then
check wiring.
6.1.9 SLOW RECOVERY
No power to thermostat - E25B
Thermostat out of calibration
Check voltage to terminal 5 of oven
thermostat. If there is no voltage then check
wiring.
Place an accurate digital thermometer probe
in centre of oven. Set thermostat to 180°C or
355°F. Close the oven door and allow oven
thermostat to cycle on and off twice. Record
oven centre temperature for the next
thermostat on and off cycle. The thermostat
should cycle on and off between 165°C and
195°C or 330°F and 385°F when set to the
above temperature. If oven temperature is
outside these ranges, then the thermostat
requires recalibration.
6.1.7 NO HEAT
With door closed, check voltage to terminal 6
of oven thermostat. If no voltage, check
voltage to terminal NO of door microswitch. If
there is no voltage then refer 6.1.2,
microswitch faulty. If there is voltage then
check wiring to thermostat.
Thermostat faulty - E25
NOTE: Thermostat cycling span should be
±15°C or 27°F
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal 1 on the thermostat. If
there is no voltage then the thermostat is
faulty—replace.
If the voltage is correct and the heating light is
on then check all wiring to elements.
E25 Convection Oven
Revision 6/F3501
-19-
© Moffat Ltd, August 2006
6.1.10 FAN ELEMENT NOT WORKING
6.1.12 BROIL NOT WORKING (E25B ONLY)
Element faulty (blown)
Element faulty / blown
With the thermostat on and heating check
voltage across fan element terminals at rear
of oven. If the voltage is correct then check
the current draw of element. If there is no
current draw then element is faulty—replace.
Set thermostat to broil position (fully clockwise). Check voltage at the broil element
terminals at rear of oven. If voltage is correct
then check current draw of element. If no
current draw then the element is faulty—
replace.
NOTE: Correct fan element current draw:
E25 120 V: 12.9A ± 1.5A
E25B 120 V: 16.7A ± 1.5A
E25 240 V: 8.3A ± 1.5A
NOTE: Top element current draw:
120 V:
16.7A ± 1.5A
Thermostat faulty—E25
Thermostat faulty
If there is no voltage to element terminals then
check voltage is being supplied to fan element
from terminal 1 on the thermostat. If no
voltage at 1 then check for voltage at terminal
P. If power to P (and none to 1), then the
thermostat is faulty—replace.
With thermostat in broil position:
1) Check broil indicator control panel
indicates. If not, check voltage at terminal
5 on thermostat switch. If no voltage,
check wiring. If voltage correct, check
voltage at terminal P5. If no voltage at P5
then switch is faulty—replace thermostat
assembly.
Thermostat faulty—E25B
2) Check heating indicator on control panel
indicates. If not, check voltage at terminal
2 of thermostat. If voltage correct, check
wiring. If no voltage, check voltage at
terminal 1 of thermostat. If voltage at
terminal 1 correct, thermostat is faulty—
replace.
Check voltage at terminal 6 of thermostat. If
no voltage then check wiring. If voltage
correct, check voltage at terminal 2. If there is
no voltage then the thermostat is faulty—
replace.
Broil relay faulty—E25B
If voltage at terminal 2 of thermostat is
correct, check voltage at terminal 9 of broil
relay. If no voltage check wiring. If voltage
correct, check voltage to terminal 3. If voltage
at terminal 9, but not at terminal 3 then relay
is faulty—replace.
Broil relay faulty
Check voltage at terminal A of broil relay. If
no voltage check wiring. If voltage at A
correct, check voltage at terminal 9. If no
voltage at 9 check wiring. If voltage at 9
correct then check voltage at terminal 6. If no
voltage at 6 then relay is faulty—replace. If
voltage at 6 is correct, check voltage at
terminal 7. If no voltage at 7 then check
wiring. If voltage at 7 is correct then check
voltage at terminal 4. If no voltage at 4 then
relay is faulty—replace.
Heating relay faulty—E25B
If voltage at terminal 2 of thermostat and
terminal 3 of broil relay are correct, check
voltage at terminal A of heating relay. If no
voltage then check wiring. If voltage at A
correct, check voltage at terminal 9. If no
voltage at 9 check wiring. If voltage at 9
correct, check voltage at terminal 6. If no
voltage at 6 then relay is faulty—replace. If
voltage at 6 is correct then check wiring to
element.
Heating relay faulty
Check voltage at terminal A of heating relay.
If no voltage check wiring. If voltage at A
correct, check wiring at terminal 7. If no
voltage check wiring. If voltage is correct,
check voltage at terminal 4. If no voltage at 4
then relay is faulty—replace. If voltage at 4 is
correct then check wiring.
6.1.11 NO THERMOSTAT HEATING
INDICATOR
Indicator faulty
With the thermostat on and heating, check the
voltage across the indicator terminals. If the
voltage is correct then the indicator is faulty—
replace.
If there is no voltage then check wiring.
E25 Convection Oven
Revision 6/F3501
-20-
© Moffat Ltd, August 2006
6.1.13 BROIL INDICATOR NOT WORKING
(E25B ONLY)
Indicator faulty
With thermostat in broil position, check the
voltage across the indicator terminals. If the
voltage is correct then indicator is faulty—
replace.
If there is no voltage then check wiring.
6.1.14 OVEN OVERHEATS IN BROIL MODE
(E25B ONLY)
Heating relay faulty
With the oven switched off, disconnect the
wires from terminals 7 and 4 of the heating
relay. Check for continuity through these
terminals. If there is continuity then the relay
is faulty—replace.
6.1.15 POWER SWITCH DOES NOT TURN
UNIT OFF.
Power switch faulty
Check if power switch latches. If the switch
does not latch, then the switch is faulty—
replace.
With switch unlatched and door open, check
voltage across terminal 2 to terminal 3 or 4. If
there is voltage then the switch is faulty—
replace.
Alternatively, perform a continuity test across
terminals 1 and 2. This should show an open
circuit when the switch is unlatched.
NOTE: When power switch is unlatched it
should not be illuminated if operating
correctly.
Broil relay faulty (E25B only)
With power switch off, check for voltage at
terminal 4 of broil relay. If there is voltage
then the relay is faulty—replace.
Heating relay faulty (E25B only)
With the oven switched off, disconnect the
wires from terminals 9 and 6 of the heating
relay. Check for continuity through these
terminals. If there is continuity then the relay
is faulty—replace.
E25 Convection Oven
Revision 6/F3501
-21-
© Moffat Ltd, August 2006
6.2 ACCESS
6.2.4 E25 CONTROL PANEL—REAR
6.2.1 CONTROL PANEL
1) Undo one screw at bottom of control
panel.
Power Switch
Heating Indicator
Thermostat
Bake Time Up
One Screw
Bake Timer
Figure 6.2.1
2) Pull out bottom of control panel and drop
down to disengage tabs at top of control
panel.
Light Switch
6.2.2 SERVICE (REAR) PANEL
Buzzer
1) Undo the four screws holding the panel.
Figure 6.2.4
6.2.5 E25B CONTROL PANEL—REAR
Four
Screws
Power Switch
Figure 6.2.2
Heating Indicator
2) Remove panel.
Broil Indicator
Thermostat
6.2.3 BAFFLE
1) Remove trays, racks and bottom tray.
Bake Time Up
Indicator
2) Undo thumbscrew (top).
Bake Timer
Thumbscrew
Light Switch
Buzzer
Figure 6.2.3
3) Remove baffle.
E25 Convection Oven
Revision 6/F3501
Figure 6.2.5
-22-
© Moffat Ltd, August 2006
6.3 REPLACEMENT
Neon
Wires
6.3.1 LIGHT BULB / GLASS
1) Unscrew lamp cover.
Figure 6.3.3
2) From back push neon through front of
panel rotating clockwise.
Lamp
Cover
3) Push new neon in from front of panel, and
reconnect wires.
Figure 6.3.1
6.3.4 POWER / LIGHT SWITCHES
2) Unscrew bulb out of fitting.
1) With control panel open (refer 6.2.1)
remove the wires from the back of the
switch, noting their positions.
3) Screw in replacement bulb.
4) Replace lamp cover.
Switch
Wires
6.3.2 DOOR MICROSWITCH
1) Open oven door.
2) Open control panel (refer 6.2.1).
3) Remove two screws holding microswitch
to bracket.
Figure 6.3.4
2) From back push switch through front of
panel.
3) Push new switch in from front of panel,
and reconnect wires.
Two Screws
6.3.5 BUZZER
Figure 6.3.2
1) Remove control panel (refer 6.2.1).
4) Transfer wires to new micro-switch and
re-assemble.
2) Remove two screws holding buzzer to
panel.
5) Adjust microswitch (refer 6.4.2).
6.3.3 INDICATOR NEON LIGHT
1) With control panel open (refer 6.2.1)
remove the wires from the back of the
neon.
Two Screws
Figure 6.3.5
4) Transfer wires to new buzzer.
5) Reassemble in reverse order.
E25 Convection Oven
Revision 6/F3501
-23-
© Moffat Ltd, August 2006
5) Withdraw old thermostat phial through
rear of oven.
6.3.6 BAKE TIMER
1) Remove bake timer knob by pulling it
firmly away from control panel.
6) Insert new thermostat.
7) Re-assemble in reverse order.
2) Open control panel (refer 6.2.1) and undo
two screws securing timer.
6.3.8 RELAY
Two Screws
1) Remove service panel (refer 6.2.2).
2) Undo two screws securing relay to oven.
Figure 6.3.6
Two
Screws
Broil
Relay
3) Transfer wires to new timer.
4) Withdraw old timer and insert new timer,
securing with screws.
Heating
Relay
5) Replace knob.
Figure 6.3.9
3) Transfer wires to new relay, and secure to
oven with screws.
6.3.7 THERMOSTAT
1) Pull knob off front of thermostat
6.3.9 ELEMENT
2) Open control panel (refer 6.2.1) and undo
two screws securing thermostat.
1) With service panel and baffle removed
(refer 6.2.2 and 6.2.3) remove the wires
from the element(s).
2) Unscrew the element from inside the
oven.
Two Screws
Top Element
Two Screws
Figure 6.3.7
3) Transfer wires to new thermostat.
Fan Element
Three Screws
4) Remove service panel (refer 6.2.2) and
from inside of oven loosen two screws
holding thermostat phial bracket.
Figure 6.3.10
3) Pull element carefully to remove.
4) Replace and re-assemble in reverse
order.
Element Ratings
100-120V
Two
Screws
Top Element
7.2 ohms
Fan Element (E25)
9.3 ohms
Fan Element (E25B) 7.2 ohms
Figure 6.3.8
E25 Convection Oven
Revision 6/F3501
220-240V
-24-
Fan Element
28.8 ohms
© Moffat Ltd, August 2006
6.3.10 FAN
220 - 240V Motors (from S/N 251948)
1) With baffle removed (refer 6.2.3) undo the
centre nut.
60 Hz
Terminal
NOTE: LH thread - Turn clockwise to loosen.
From S/N 251948 Take care with
spacer.
Up to S/N 251947 Take care not to
lose the two washers.
Screws (4)
Neutral
50 Hz
Terminal
Earth /
Ground
Figure 6.3.13
Centre Nut
220 - 240V Motors (up to S/N 251947)
110V Motors (all)
Figure 6.3.11
Phase
Terminal
Neutral
Earth /
Ground
Screws (4)
2) Replace and re-assemble in reverse
order.
NOTE: Reassemble with spacer behind fan.
or
Reassemble with one washer behind
fan, and one washer in front.
Figure 6.3.14
6.3.11 MOTOR
1) Remove fan (refer 6.3.10), remove service
panel (refer 6.2.2) and then remove the
wires that go to the motor.
6.3.12 OUTER GLASS ( E25 / E25B)
2) Undo the four screws holding the motor
bracket in place (from the outside) and
remove motor assembly.
2) Lock hinges into position by rotating the
hinge locking clip over the hinge locking
notch.
3) Remove three screws holding motor to
bracket and remove motor. (fig 6.3.12)
Hinge Locking
Notch
1) Open the oven door.
4) Replace and re-assemble in reverse
order.
5) Ensure wire connections
(fig 6.3.13 and 6.3.14)
are
correct
Hinge Locking Clip
Figure 6.3.15
3) Lift door away from the oven and place on
a flat surface.
Three Screws
4) Undo two screws and remove the trim
from the bottom of the door. Carefully
withdraw the glass.
Figure 6.3.12
E25 Convection Oven
Revision 6/F3501
-25-
© Moffat Ltd, August 2006
6.3.14 DOOR SEALS
1) Open oven door.
2) To remove, hold at their centre point and
pull forward until they unclip
3) Refit new seals.
Note: Fit top and bottom seals first, with
open side of seal facing
downwards. Fit side seals with
open side facing outwards.
Two Screws
Figure 6.3.16
5) To replace, ensure that the two silicone
rubber seals are in place on the left hand
and right hand side of the door frame.
Clean the inside of the glass and refit it,
ensuring that the silicone rubber seals
cover the outer edges of the glass. Refit
the bottom trim, and fit the door to the
oven.
6.3.15 DOOR HANDLE (E25 / E25B)
1) Remove the door (refer 6.3.12).
2) Undo two screws and remove the top trim
and handle assembly, taking care not to
dislodge the outer glass.
3) Undo two bolts securing handle to top
trim. Replace handle and reassemble in
reverse order.
6.3.13 INNER GLASS (E25 / E25B)
1) Remove the outer glass (refer 6.3.12).
2) Undo two screws and remove the top trim
and handle assembly.
Two Bolts
Figure 6.3.19
Two Screws
Figure 6.3.17
6.3.16 DOOR HINGES
3) Uncrimp the retaining lugs of the window
spacer and remove the spacer and glass.
1) Remove outer glass (refer 6.3.12).
2) Undo two screws securing hinge assembly
to oven door.
Retaining
Lugs
Two Screws
Figure 6.3.20
3) Withdraw hinge assembly and replace.
Reassemble in reverse order.
Figure 6.3.18
4) To replace, ensure the silicone rubber seal
has not been displaced. Clean the glass
and refit it. Place the window spacer in
position and crimp the retaining lugs over
to hold the glass in place. Refit outer
glass as above.
E25 Convection Oven
Revision 6/F3501
-26-
© Moffat Ltd, August 2006
6.3.17 HINGE COUNTER BRACKETS
1) Remove door (refer 6.3.12).
2) Remove screws from back of oven securing wrapper to oven.
Two screws
Figure 6.3.24
9) Remove two screws securing insulation
panel to oven liner.
Figure 6.3.21
3) Turn oven onto its back and remove three
screws at each side securing wrapper,
and two securing insulation panel.
Two
Screws
Insulation
panel
Figure 6.3.25
8 screws
10) Prise open the insulation panel to allow
access to the right hand counter bracket.
Undo two screws securing bracket, and
remove bracket.
Figure 6.3.22
4) Undo two screws and remove lintel cover.
5) Remove control panel (refer 6.2.1) and
microswitch bracket (refer 6.3.2). Place
inside oven.
6) Remove two screws securing the lintel
support to the oven and remove.
Two screws
Two screws
Figure 6.3.26
11) Replace, ensuring roller to top of bracket.
Re-assemble in reverse order.
Figure 6.3.23
7) Remove wrapper.
8) Undo two screws securing left hand
counter bracket to oven and remove.
Replace, ensuring that bracket is installed
with roller to top.
E25 Convection Oven
Revision 6/F3501
-27-
© Moffat Ltd, August 2006
6.4 ADJUSTMENT / CALIBRATION
6.4.2 THERMOSTAT CALIBRATION - E25B
6.4.1 THERMOSTAT CALIBRATION - E25
IMPORTANT:
IF THE OVEN
TEMPERATURE
NEEDS
TO
BE
INCREASED, ENSURE THAT THE
THERMOSTAT IS IN THE ‘OFF’ POSITION
BEFORE CARRYING OUT ADJUSTMENT.
IF OVEN TEMPERATURE NEEDS TO BE
DECREASED, ENSURE THERMOSTAT IS
IN THE ‘MAX’ TEMPERATURE POSITION
BEFORE
CARRYING
OUT
ANY
ADJUSTMENT.
IMPORTANT:
IF THE OVEN
TEMPERATURE
NEEDS
TO
BE
INCREASED, ENSURE THAT THE
THERMOSTAT IS IN THE ‘OFF’ POSITION
BEFORE CARRYING OUT ADJUSTMENT.
IF OVEN TEMPERATURE NEEDS TO BE
DECREASED, ENSURE THERMOSTAT IS
IN THE ‘MAX’ TEMPERATURE POSITION
BEFORE
CARRYING
OUT
ANY
ADJUSTMENT.
Calibration Nut
Thermostat Shaft
1) Turn off power.
2) Remove thermostat knob by pulling it
firmly away from control panel.
3) Adjust the calibration screw located in the
centre of the thermostat shaft.
Broil Switch
To increase oven temperature, turn
calibration screw anticlockwise.
To decrease oven temperature, turn
calibration screw clockwise.
Adjustment of the calibration screw by 1°
angular will alter oven temperature by
approximately 0.8°C (1.5°F).
Thermostat
Figure 6.4.2
1) Turn off power.
2) Remove thermostat knob by pulling it
firmly away from control panel.
3) Open control panel (refer 6.2.1). Remove
two screws on control panel holding
thermostat.
Two Screws
Calibration Screw
Figure 6.4.1
Figure 6.4.3
4) The thermostat can now be removed.
5) Carefully remove two screws holding broil
switch to thermostat.
HINT: Tape broil switch assembly together before removal to prevent it from
springing apart.
E25 Convection Oven
Revision 6/F3501
-28-
© Moffat Ltd, August 2006
Screws
6.4.4 60 MINUTE TIMER ZERO POSITION
ADJUSTMENT
1) Remove 60 minute timer knob by pulling it
firmly away from control panel.
Broil Switch
2) Open control panel (refer 6.2.1). Loosen
two screws on control panel holding 60
minute timer.
Figure 6.4.4
7) Adjust the calibration nut located at the
base of the thermostat shaft.
To increase oven temperature, turn
calibration nut anticlockwise.
To decrease oven temperature, turn
calibration nut clockwise.
Adjustment of the calibration nut by 1°
angular will alter oven temperature by
approximately 2°C (3.6°F).
Two Screws
Figure 6.4.7
3) The timer can now be rotated as required
to ensure that the buzzer sounds at the
zero position.
Calibration Nut
Figure 6.4.5
8) Reassemble broil switch onto thermostat
and fit assembly back onto control panel.
9) Turn on power and
thermostat calibration.
recheck
oven
10) Repeat procedure if necessary.
6.4.3 DOOR MICROSWITCH ADJUSTMENT
1) Open oven door.
2) Open control panel (refer 6.2.1).
3) With fingers, bend actuator arm of
microswitch so that switch operates when
door is in closed position.
Actuator Arm
Figure 6.4.6
E25 Convection Oven
Revision 6/F3501
-29-
© Moffat Ltd, August 2006
E25 Convection Oven
Revision 6/F3501
2
4
1
3
N
POWER
SWITCH
Ø
TIME
UP
2
1
3
B
1Hr
TIMER
BUZZER
FAN
NO
NC
DOOR
MICRO
SWITCH
OVEN
LIGHT
HEATING
LIGHT
SWITCH
OVEN
T/STAT
1
P
FAN ELEMENT
120v 1.55kW
240v 2.00kW
7.1 E25
-30-
E
L2
L1
7. ELECTRICAL CIRCUIT SCHEMATIC
© Moffat Ltd, August 2006
E25 Convection Oven
Revision 6/F3501
-31-
E
L2
L1
4
3
N
TIME
UP
2
2
1
POWER
SWITCH
Ø
1
3
B
FAN
BUZZER
1Hr
TIMER
NO
NC
OVEN
LIGHT
HEATING
LIGHT
SWITCH
DOOR
MICRO
SWITCH
BROIL
1
7
BROIL
ELEMENT
2.00kW
B4
A
B4
6
1
7
6
9
9
3
3
P6
P5
1
A
6
5
2
FAN
ELEMENT
2.00kW
HEATING
RELAY
BROIL
RELAY
OVEN
T/STAT
5-P5 BROIL
6-P6 FAN
ELEMENT
7.2 E25B
© Moffat Ltd, August 2006
Revision 6/F3501
4
E25 Convection Oven
1
3
3 2
14
-32-
8
5
12
4
TIMER
15
1
2
11
LIGHTS
10
1
15
BUZZER
12
POWER
3
1
T/STAT
HEAT
13
TIME UP
9
14
2
4
2
13
16
24
8
7
5
NC
6
NO
7
17
E
21
P
1
MAINS
TERMINAL BLOCK
N
P
MICROSWITCH
COM
N
16
19
E
22
24
6
23
2
1
EARTH STUD
FAN MOTOR
4
3
17
18
22
20
19
ELEMENT
9
NOTE: USE TERMINAL 4 FOR BOTH 50Hz AND
50/60Hz MODELS
8. ELECTRICAL WIRING DIAGRAM
8.1 E25 (220 - 240V)
8.1.1 E25 (220-240V) -From S/N 251948
© Moffat Ltd, August 2006
Revision 6/F3501
4
E25 Convection Oven
1
3
3 2
14
-33-
8
5
12
4
TIMER
15
1
2
11
LIGHTS
10
1
15
BUZZER
12
POWER
3
1
T/STAT
HEAT
13
TIME UP
9
14
2
4
2
13
16
24
8
7
5
NC
6
NO
7
17
E
21
P
1
MAINS
TERMINAL BLOCK
N
P
MICROSWITCH
COM
N
16
19
E
22
24
6
23
2
1
EARTH STUD
FAN MOTOR
4
3
17
18
22
20
19
ELEMENT
9
NOTE: USE TERMINAL 4 FOR BOTH 50Hz AND
50/60Hz MODELS
8.1.2 E25 (220-240V) -To S/N 251947
© Moffat Ltd, August 2006
Revision 6/F3501
E25 Convection Oven
4
14
-34-
1
9
8
5
12
4
1
2
11
10
1
15
BUZZER
12
POWER
LIGHTS
T/STAT
HEAT
15
13
TIME UP
3 2
TIMER
3
14
2
4
3
2
1
13
16
24
8
7
5
NC
6
NO
7
17
E
20
P
1
MAINS
TERMINAL BLOCK
N
P
MICROSWITCH
COM
N
16
19
E
22
24
21
23
17
FAN MOTOR
EARTH STUD
6
18
22
21
19
ELEMENT
9
8.2 E25 (110V)
© Moffat Ltd, August 2006
7
4
8
T/STAT
2
9
3
2
11
13
5
4
12
TIME UP
TIMER
11
15
16
17
1
2
18
1
25
24
27
BUZZER
12
26
BROIL
27
4
3
2
1
LIGHTS
26
HEAT
POWER
2
40
14
1
6
P
19
MAINS
TERMINAL BLOCK
28
10
33
34
N
14
E
38
32
E
40
29
N
P
MICROSWITCH
39
35
20
21
BROIL RELAY
EARTH STUD
19
31
3
COM
6
5
1
NC
15
35
7
6
36
22
10
21
30
29
37
34
16
HEATING RELAY
23
31
FAN MOTOR
30
ELEMENT
38
3
9
4
NO
1
6
9
4
B
-35-
2
3
7
P6
1
A
6
9
5
B
Revision 6/F3501
1
P5
7
E25 Convection Oven
2
A
13
22
20
37
23
36
33
ELEMENT
8.3 E25B
© Moffat Ltd, August 2006
9. SPARE PARTS
PART NO
DESCRIPTION
CONTROLS
021473
021514
023211
017121
021472
020823
020823
020849
023212
011760
011794
015822
021474
023213
003004
013520
023216
013521
---------
Switch - Power (220-240V)
Switch - Power (110V)
Thermostat (E25 only)
Thermostat (E25B only)
Knob - Thermostat (E25 only)
Knob - Thermostat (E25B only)
Knob - Bake Timer
Neon Indicator
Bake Timer - Coupatan (To S/N 228661)
Bake Timer - Diehl (From S/N 228662)
Buzzer (220-240V)
Buzzer (110V)
Light Switch
Relay (E25B only)
Microswitch
Oven Lamp Assembly (220-240V)
Oven Lamp Assembly (110V)
Oven Lamp (220-240V) 40W Miniature Edison Screw
Oven Lamp (110V) 40W Edison Screw
MOTOR & ELEMENTS
023071
023069
023072
023070
013431K
022042
023215
025387
Oven Fan Element (E25 only) (240 volt)
Oven Fan Element (E25 only) (110 volt)
Oven Top Element (E25B only) (110 volt)
Oven Fan Element (E25B only) (110 volt)
Fan Motor (220-240V) (From S/N 251948)
Fan (From S/N 251948)
Fan Motor c/w Fan (220-240V) (Up to S/N 251947)
Fan Motor (110V)
DOOR
023099
014226
021468
026498
023062
023063
023063
023217
Oven Door Seal Strip Side
Oven Door Seal Strip Top/Bottom
Handle (E25)
Handle (E25MS)
Door Outer Glass (E25)
Door Inner Glass (E25)
Door Glass Inner and Outer (E25MS)
Door Hinge
RACKS / BAFFLES
023066
023067
023068
012809
023382
023068
004868
Oven Side Rack LH
Oven Side Rack RH
Side Rack Screw
Wire Oven Rack
Fan Baffle
Fan Baffle Screw
Bottom Baffle
E25 Convection Oven
Revision 6/F3501
-36-
© Moffat Ltd, August 2006
10. ACCESSORIES
100 MM (FOUR INCH) FOOT OPTION
(PART NO 13048)
OVEN RACKS (PART NO 12809)
25 MM (ONE INCH) FOOT OPTION (PART
NO 13908)
SCONE TRAYS (PART NO 02083)
DOUBLE STACKING KIT (PART NO 24290)
A25 STAINLESS STEEL STAND
E25 Convection Oven
Revision 6/F3501
-37-
© Moffat Ltd, August 2006
11. PARTS DIAGRAMS
11.1 MAIN ASSEMBLY - E25
E25 Convection Oven
Revision 6/F3501
-38-
© Moffat Ltd, August 2006
Pos
Part No.
Description
1
2
012809
011402
005040
023074
023087
022042
003016
013431K
023215
025387
004857
017770
023093
012520
023216
013977
003004
023067
023073
002138
002441
013586
018251
023089
023088
013908
---------023071
023069
023382
023217
023282
023091
023063
023062
023228
023230
004854
021468
023281
023090
041410
004868
023066
023095
044215
023068
023384
023387
013610
044210
021637
014226
023219
023099
OVEN RACK
PIVOT TOP COVER - E25 / E25B
PIVOT TOP COVER - E25MS / E25BMS
LINTEL SUPPORT
WRAPPER
FAN
MOTOR PLATE
MOTOR - 240V (From S/N 251948)
MOTOR – 240V (Up to S/N 251947)
MOTOR – 110V
OVEN
PHIAL GUARD
MICROSWITCH MOUNTING BRACKET
OVEN LIGHT ASSEMBLY – 240V
OVEN LIGHT ASSEMBLY – 110V
MICROSWITCH INSULATION
MICROSWITCH
SIDE RACK RH
COVER PANEL
CABLE CLAMP
INSULATOR
TERMINAL BLOCK
CABLE ENTRY
INSULATION PANEL
BODY
FOOT
CONTROL PANEL (Refer to section 11.3 / 11.4)
FAN ELEMENT – 240V
FAN ELEMENT – 110V
BAFFLE RA
DOOR HINGE
BOTTOM TRIM
GLASS CLAMP ANGLE (Refer to section 11.5 for E25MS door)
INNER GLASS (Refer to section 11.5 for E25MS door)
OUTER GLASS (Refer to section 11.5 for E25MS door)
INNER GLASS SEAL (Refer to section 11.5 for E25MS door)
OUTER GLASS SEAL (Refer to section 11.5 for E25MS door)
DOOR INNER PANEL (Refer to section 11.5 for E25MS door)
DOOR HANDLE (Refer to section 11.5 for E25MS door)
TOP TRIM (Refer to section 11.5 for E25MS door)
HANDLE STIFFENER (Refer to section 11.5 for E25MS door)
M8 X 20
BOTTOM BAFFLE
SIDE RACK LH
VENT TUBE
CAGE NUT
SIDE RACK SCREW
BAFFLE PIVOT WA
BAFFLE SUPPORT
DOOR BUSH
SPIRE CLIP
MICROSWITCH BUTTON
TOP SEAL
HINGE COUNTER BRACKET
SIDE SEAL
3
4
5
6
7
7
8
9
10
11
11
12
13
14
15
16
17
18
19
20
21
22
23
24
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
E25 Convection Oven
Revision 6/F3501
-39-
© Moffat Ltd, August 2006
11.2 MAIN ASSEMBLY - E25B (110V ONLY)
E25 Convection Oven
Revision 6/F3501
-40-
© Moffat Ltd, August 2006
Pos
Part No.
Description
1
2
012809
011402
005040
023074
023087
022042
003016
025387
023075
017770
023093
023216
013977
003004
023067
023073
002138
002441
013586
023213
018251
023089
023088
013908
--------023070
023382
023389
023217
023282
023091
023063
023062
023228
023230
004854
023384
021468
023281
023090
041410
023072
003219
023068
044215
023066
023095
023387
013610
044210
021637
014226
023219
023099
OVEN RACK
PIVOT TOP COVER - E25 / E25B
PIVOT TOP COVER - E25MS / E25BMS
LINTEL SUPPORT
WRAPPER
FAN
MOTOR PLATE
MOTOR (110V)
OVEN
PHIAL GUARD
MICROSWITCH MOUNTING BRACKET
OVEN LIGHT ASSEMBLY (110V)
MICROSWITCH INSULATION
MICROSWITCH
SIDE RACK RH
COVER PANEL
CABLE CLAMP
INSULATOR
TERMINAL BLOCK
RELAY (110V)
CABLE ENTRY
INSULATION PANEL
BODY
FOOT
CONTROL PANEL (refer to section 11.3 / 11.4)
FAN ELEMENT (110V)
BAFFLE RA
BOTTOM BAFFLE
DOOR HINGE
BOTTOM TRIM
GLASS CLAMP ANGLE (Refer to section 11.5 for E25MS door)
INNER GLASS (Refer to section 11.5 for E25MS door)
OUTER GLASS (Refer to section 11.5 for E25MS door)
INNER GLASS SEAL (Refer to section 11.5 for E25MS door)
OUTER GLASS SEAL (Refer to section 11.5 for E25MS door)
DOOR INNER PANEL (Refer to section 11.5 for E25MS door)
BAFFLE PIVOT WA (Refer to section 11.5 for E25MS door)
DOOR HANDLE (Refer to section 11.5 for E25MS door)
TOP TRIM (Refer to section 11.5 for E25MS door)
HANDLE STIFFENER (Refer to section 11.5 for E25MS door)
M8 X 20
GRILL ELEMENT (110V)
ELEMENT SUPPORT
SIDE RACK SCREW
CAGE NUT
SIDE RACK LH
VENT TUBE
BAFFLE SUPPORT
DOOR BUSH
SPIRE CLIP
MICROSWITCH BUTTON
TOP SEAL
HINGE COUNTER BRACKET
SIDE SEAL
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
E25 Convection Oven
Revision 6/F3501
-41-
© Moffat Ltd, August 2006
11.3.1 CONTROL PANEL ASSEMBLY - E25
Pos
Part No.
Description
23
004851
004880
004850
021473
021514
020849
023857
021472
020823
021474
011794
015822
023212
011760
023211
CONTROL PANEL - BAKBAR
CONTROL PANEL - BLUE SEAL
CONTROL PANEL - MOFFAT
POWER SWITCH – 240V
POWER SWITCH – 110V
NEON INDICATOR - 240V
NEON INDICATOR - 110V
KNOB
KNOB
LIGHT SWITCH
BUZZER – 240V
BUZZER – 110V
TIMER - COUPATAN (TO S/N 228661)
TIMER - DIEHL (FROM S/N 228662)
THERMOSTAT
51
51
52
53
54
55
56
56
57
58
E25 Convection Oven
Revision 6/F3501
-42-
© Moffat Ltd, August 2006
11.3.2 CONTROL PANEL ASSEMBLY - E25B (110V ONLY)
Pos
Part No.
Description
24
54
55
56
57
58
59
004849
021514
023857
020823
021474
015822
023212
011760
017121
CONTROL PANEL - MOFFAT
POWER SWITCH - 110V
NEON - 110V
KNOB
LIGHT SWITCH
BUZZER - 110V
TIMER - COUPATAN (TO S/N 228661)
TIMER - DIEHL (FROM S/N 228662)
THERMOSTAT
60
E25 Convection Oven
Revision 6/F3501
-43-
© Moffat Ltd, August 2006
11.4.1 CONTROL PANEL ASSEMBLY - E25MS
Pos
Part No.
Description
1
2
026487
021514
021473
023857
020849
023211
021472
011760
020823
021474
015822
011794
026495
026608
CONTROL PANEL
POWER SWITCH - 110V
POWER SWITCH - 240V
NEON - 110V
NEON - 240V
THERMOSTAT
KNOB -THERMOSTAT
1 HOUR TIMER
KNOB TIMER
LIGHT SWITCH
BUZZER - 110V
BUZZER - 240V
OVERLAY - MOFFAT
OVERLAY - BLUE SEAL
3
4
6
7
9
10
11
14
E25 Convection Oven
Revision 6/F3501
-44-
© Moffat Ltd, August 2006
11.4.2 CONTROL PANEL ASSEMBLY - E25BMS
Pos
Part No.
Description
1
2
3
4
6
7
9
10
12
026487
021514
023857
023211
021472
011760
021474
015822
026609
CONTROL PANEL
POWER SWITCH - 110V
NEON INDICATOR - 110V
THERMOSTAT
KNOB -THERMOSTAT
1 HOUR TIMER
LIGHT SWITCH
BUZZER - 120
OVERLAY - MOFFAT
E25 Convection Oven
Revision 6/F3501
-45-
© Moffat Ltd, August 2006
11.5 DOOR ASSEMBLY - E25MS
Pos
Part No.
Description
1
2
3
4
5
6
7
8
005037
023217
026485
026578
026498
023063
023228
026491
DOOR INNER WA
HINGE
DOOR OUTER PANEL WA
HANDLE STIFFENER
DOOR HANDLE PLATED
DOOR INNER GLASS
INNER GLASS SEAL
GLASS CLAMP ANGLE
E25 Convection Oven
Revision 6/F3501
-46-
© Moffat Ltd, August 2006
11. SERVICE CONTACTS
AUSTRALIA
VICTORIA - MOFFAT PTY
HEAD OFFICE AND MAIN WAREHOUSE
740 Springvale Road
Mulgrave VIC 3170
Spare Parts Department
NEW SOUTH WALES - MOFFAT PTY
Unit 3/142 James Ruse Drive
Rosehill NSW 2142
Spare Parts
Tel (03) 9518 3888
Fax (03) 9518 3838
Free Call 1800 337 963
Fax (03) 9518 3895
Tel (02) 8833 4111
Free Call 1800 337 963
Fax (03) 9518 3895
QUEENSLAND - MOFFAT PTY
30 Prosperity Place
Geebung QLD 4034
Spare Parts
Tel (07) 3630 8600
Free Call 1800 337 963
Fax (03) 9518 3895
SOUTH AUSTRALIA - MOFFAT PTY
28 Greenhill Rd
Wayville SA 5034
Spare Parts
Tel (08) 8274 2116
Free Call 1800 337 963
Fax (03) 9518 3895
WESTERN AUSTRALIA - MOFFAT PTY
PO Box 689
Joondalup Business Centre WA 6027
Spare Parts
Tel (08) 9305 8855
Free Call 1800 337 963
Fax (03) 9518 3895
NATIONAL COVERAGE FOR 24 HOUR SERVICE OR MAINTENANCE DIAL
FREE CALL 1800 622 216 (AUSTRALIA ONLY)
CANADA
SERVE CANADA
22 Ashwarren Rd
Downview
Ontario M3J1Z5
Tel 416-631-0601
Fax 416-631-0315
NEW ZEALAND
CHRISTCHURCH - MOFFAT LTD
16 Osborne St
PO Box 10-001
Christchurch
Spare Parts
Tel (03) 389 1007
Fax (03) 389 1276
Free Call 0800 MOFFAT
(0800 6633 28)
Fax (03) 381 3616
AUCKLAND - MOFFAT LTD
4 Waipuna Road
Mt Wellington
Auckland
Spare Parts
E25 Convection Oven
Revision 6/F3501
Tel (09) 574 3150
Fax (09) 574 3159
Free Call 0800 MOFFAT
(0800 66 33 28)
-47-
© Moffat Ltd, August 2006
UNITED KINGDOM
BLUESEAL LTD
Units 6-7 Mount St Business Park
Mount St
Birmingham B7 5QU
England
Tel 0121-327 5575
Fax 0121-327 9711
UNITED STATES OF AMERICA
MOFFAT INC.
3765 Champion Blvd
Winston-Salem
NC27115
Tel 1-800-551 8795
Fax 336 661 9546
NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL
FREE CALL 1800 551 8795 (USA ONLY)
E25 Convection Oven
Revision 6/F3501
-48-
© Moffat Ltd, August 2006
APPENDIX A. DOUBLE STACKING KIT (24290)
Kit Includes:
1
1
1
1
2
1
23
2
2
x
x
x
x
x
x
x
x
x
Part No
Vent Duct
Vent Pipe
Saddle Clamp
Double Stack Front
Double Stack Side
Double Stack Rear
3
/8" x 8A Pozi Pan Hd Screw
½” x 8 Phillips Head Black Screw
Black Fibre Washer
Assembly Instructions:
24306
24307
10023
04907
24303
24302
41045
41046
10329
(THE ELECTRICAL SUPPLY MUST BE DISCONNECTED)
A.
Bottom Unit (Refer figure 1)
1.
Position vent duct on bottom unit over oven vent. Temporarily locate double stack rear in
correct position on top of bottom unit. Centrally locate the vent duct in the cut-out. Check that
the oven vent is covered and mark the five
hole positions (two down each side of the
flue duct and one at front) on the oven
Double Stack Rear
Remove Lintel
wrapper.
2.
Drill five ø3.5mm holes in the oven
wrapper where marked.
3.
Secure the vent duct to the wrapper with
five 3/8" x 8A Pozi screws into these
holes.
4.
Undo the two screws securing the top
lintel to the bottom oven, and remove the
lintel. Remove the three screws from the
top rear of the oven wrapper.
B.
Top Unit
1.
Figure A.1
Remove all trays and racks from oven.
Tip oven upside down and remove the feet screwed into the base.
2.
Remove the six screws (three each side) securing the oven wrapper to the sides of the oven.
Position the double stack sides flush with the sides and front of the oven, and secure each
with three screws.
3.
Remove the three screws along the front bottom edge of the oven. Position the double stack
front over these three screw holes. Flush the ends of the double stack front with the sides of
the unit and secure to the double stack sides using the two black screws (with
fibre washers). Secure to bottom of oven with three screws.
4.
Secure the double stack rear to the double stack sides with two screws.
E25 Convection Oven
Revision 6/F3501
-49-
© Moffat Ltd, August 2006
C.
Stacking the Ovens (Refer figure A.2)
1.
With two persons, lift the top oven onto the bottom oven and position slightly forward so that
the double stack front engages with the lintel support on the bottom oven, then slide the top
oven back until the double stack sides are flush with the sides and rear of the bottom oven.
2.
Secure double stack rear to bottom unit with three screws. Secure the double stack front to
the lintel support of the bottom unit with two screws.
3.
Remove the rear cover panel from the top unit. Fit the vent pipe to the vent duct then
secure pipe to the rear panel of the top unit using the saddle clamp and two screws.
(NOTE: for units manufactured before serial number 224323, the mounting holes for the
saddle clamp will need to be drilled. Holding the vent pipe vertical, position the saddle clamp
over the vent pipe approximately 75 mm below the top of the oven and drill two ø3.5mm
holes).
4.
Using pliers or similar, knock out the notches at the top and bottom of the rear cover panel
that allow for the vent pipe. Refit the rear cover panel to the top unit.
(NOTE: For units manufactured before serial number 224323, these notches will have to be
cut. Mark a notch 30mm wide by 32mm deep in the appropriate place (refer figure 2
below) at the top and bottom of the cover panel. Hold rear cover panel against rear of top unit
and check the position of the marked notches against the vent pipe. Cut out the notches and
refit the rear panel.)
32
30
55
Figure A.2
E25 Convection Oven
Revision 6/F3501
-50-
© Moffat Ltd, August 2006
E25 Convection Oven
Revision 6/F3501
-51-
© Moffat Ltd, August 2006