Blue Seal | E311 | Service manual | Blue Seal E311 Service manual

E9311 CONVECTION
OVEN RANGE
SERVICE
MANUAL
®
Convection Oven
Revision 4/F3544
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© Moffat Ltd, April 2005
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
Convection Oven
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© Moffat Ltd, April 2005
CONTENTS
This manual is designed to take a more in depth look at the E9311 convection oven range 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..................................................................................................................9
3.1 Oven
3.2 Hob
3.3
Explanation of Control System
4. MAINTENANCE.............................................................................................................13
4.1 Cleaning
4.2 Routine
Procedures
5. TROUBLE
5.1 Oven
5.2 Hob
SHOOTING GUIDE.....................................................................................15
6. SERVICE
PROCEDURES.............................................................................................19
6.1 Fault
Diagnosis
6.2 Access
6.3 Replacement
6.4 Adjustment
/ Calibration
7. ELECTRICAL
SCHEMATICS.......................................................................................36
8. ELECTRICAL
8.1 Oven
8.2 Hob
WIRING DIAGRAMS.............................................................................38
9. SPARE
PARTS..............................................................................................................41
10. ACCESSORIES
11. PARTS
11.1
11.2
12. SERVICE
/ OPTIONS..........................................................................................42
DIAGRAM........................................................................................................43
Main Assembly—Oven Section Only
Control Panel Assembly—Oven Section Only
CONTACTS..................................................................................................47
APPENDIX A. POWER RELAY UPGRADE KIT...................................................................49
IMPORTANT: MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS.
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1. SPECIFICATIONS
MODEL: E9311
796.5
600
90
56.5
ELECTRICAL ENTRY
E
890
1
E
1
E
190
210
1
960
E
765
1
ELECTRICAL ENTRY
120
45
FRONT
SIDE
EE
1 1
PLAN
LEGEND
- Electrical connection entry point
Dimensions shown in millimetres.
Dimensions in inches shown in brackets.
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LOCATION
To ensure correct ventilation for the motor and
controls the following minimum installation
clearances are to be adhered to:
Rear
Left-hand side
Right-hand side
25mm / 1”
75mm / 3”
25mm / 1”
OVEN INTERNAL DIMENSIONS
Width
544 mm / 21.4”
Height
418 mm / 16.5”
Depth
432 mm / 17”
Oven Volume 0.10 m³ / 3.5 ft³
OVEN RACK SIZE
Width
536 mm / 21”
Depth:
370 mm / 14.5”
ELECTRICAL SUPPLY SPECIFICATION
Oven
230-240 V AC, 50 Hz, 13.0 A, 3.1kW @ 240 V
Hob
230-240 V AC, 50 Hz, 27.0 A, 6.5kW @ 240 V
ELECTRICAL
PLUG
SPECIFICATION
REQUIREMENTS (OVEN)
Australia
3-pin 250V 15A, AS/NZ 3112
Canada
3-pin 250V 15A, NEMA 6-15
New Zealand
3-pin 250V 15A, AS/NZ 3112
United Kingdom 3-pin 250V 13A fused, BS
1363A
United States 3-pin 250V 15A, NEMA 6-15
Other Countries 3-pin 250V 13A minimum,
type to meet country
standards
ELECTRICAL
CONNECTION
CONDUCTOR SIZES (HOB)
Minimum:
4mm² / 16AWG
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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.
this is not carried out, uneven cooking could
occur). The feet/legs used with bench or floor
mounting 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.
BEFORE CONNECTION TO POWER
SUPPLY
Unpack and check unit for damage and report
any damage to the carrier and dealer. Report
any deficiencies to your dealer. Fit the legs
which are packed inside the oven. Fit door
handle to oven door. Check that the available
power supply is correct to that shown on the
rating plate located on the right-hand side
panel (figure 2.3).
BEFORE USE
Operate the oven for about 1 hour at 200°C
(400°F) to remove any fumes or odours which
may be present. Operate the element on HI
for about three minutes. This will produce
some smoke which will soon disappear.
Oven
230-240 V AC, 50 Hz, 13.0 A, 3.1kW @ 240 V
ELECTRICAL CONNECTION—OVEN
E9311 convection ovens are supplied with
pre-fitted cords. Ensure unit is fitted with the
correct cord and plug for the installation.
Refer specifications section.
Hob
230-240 V AC, 50 Hz, 13.0 A, 6.5kW @ 240 V
WARNING: THIS APPLIANCE HAS
INDEPENDENT ELECTRICAL CIRCUITS FOR THE OVEN AND HOB.
SEPARATE POWER CONNECTIONS
ARE REQUIRED.
L1
L2
Phase
Neutral
RED
BROWN
BLACK
Ground
BLACK
BLUE
WHITE
GREEN
GREEN/YELLOW
WARNING: THIS APPLIANCE MUST
BE GROUNDED / EARTHED
Figure 2.1
LOCATION
To ensure correct ventilation for the motor,
and controls the following minimum
installation clearances are to be adhered to:
Rear
Left-hand side
Right-hand side
Should changing of the cord be necessary,
gain access to the electrical connection
terminal block and strain relief by removing
the back panel (four screws).
25mm / 1”
25mm / 1”
25mm / 1”
ELECTRICAL CONNECTION—HOB
To access the electrical connection terminal
block, remove the back panel of the hob (six
screws).
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
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The rating plate for the hob is located on the
left side of the hob back panel.
DOOR HANDLE INSTALLATION
Hob Rating Plate
1) Open oven door.
2) Remove two screws (item 2).
3) Remove the two screws (item 3) from the
handle (item 1).
4) Install the handle bracket through the slot
on the door side.
5) Screw in the two screws (item 2) fully,
then fully screw in the previous two screws
(item 3). Ensure that they are tight.
Figure 2.4
1
3
2
Figure 2.2
RATING PLATE LOCATION
The rating plate for the oven is located at the
bottom left corner of the RH side panel.
Oven Rating Plate
Figure 2.3
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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 OVEN
1. POWER
Depress to switch power on or off (switch
illuminates when power is on).
2. THERMOSTAT
Temperature range 50 - 280°C (120 - 550°F).
Indicator illuminates when elements are
cycling ON to maintain set temperature.
1
GRILL POSITION - The GRILL indicator will
illuminate indicating that the GRILL function
has been set. The HEATING indicator will
also illuminate whenever the elements are on.
2
3. BAKE TIMER
1 Hour bake timer.
(Indicator illuminates when “time up” (0)
reached, and buzzer sounds).
4. ROAST N HOLD
Depress switch to activate ’ROAST N HOLD’
function (Switch illuminates when ON).
3
5. ROAST TIMER
3 Hour roast timer.
(Indicator illuminates when “time up” (0)
reached, and product held at 75°C (167°F).
4
6. LIGHT SWITCH
Push switch to activate oven light.
(Light illuminates while button depressed).
5
6
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DISC ELEMENTS
Before using for the first time, heat the element on HI for three minutes. This will produce some smoke which will soon disappear.
With continued use the "red spot" and
stainless steel trim ring may discolour. This is
a natural result of heat and does not affect the
operation of the element.
3.2 COOK TOP (HOB)
IMPORTANT: DO NOT PLACE HOT
COOKING VESSELS ON CONTROL
AREA.
UTENSILS
To conserve power and achieve the best
cooking results, saucepans should have close
fitting lids and heavy duty flat bases which
remain flat when heated.
1
Do not use woks, very small saucepans or
those with buckled or bowed bases, as this
could waste power, lengthen the cooking time,
shorten the life of the element, and make
cleaning difficult.
2
Flat, heavy duty base
Convex base Concave base
-heat loss
-heat loss
Wet base
-corrosion
Too small
-corrosion
-heat loss
1. ELEMENT CONTROL
Each control knob can be turned in either direction and set to provide any level of heating
between HI and LO. Start cooking at the
highest setting, and change to a lower setting
when the desired temperature has been
reached. Disc elements have the ability to
store heat, so cooking is able to continue for a
time after the element has been switched off.
2. INDICATOR LIGHTS
An indicator light is provided for each element
and will illuminate whenever the element is
switched on.
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3.3 EXPLANATION
SYSTEM
circuit and elements is supplied via a power
relay located near the terminal block at the
rear of the unit. Although the power relay has
two poles with changeover contacts, only the
normally closed contact on one pole is used the other is redundant. When the power
switch on the control panel is switched on the
power relay is energised and the normally
open contact is closed, providing power to the
temperature control circuit.
OF CONTROL
The E9311 Turbofan convection oven range
features 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.
These are broken into separate sections for
the oven and hob.
The temperature control of this oven is with a
capillary type thermostat which can be set to a
required cooking temperature, or set to the
Grill/Broil position to provide top browning or
grilling/broiling in the oven.
Convection Oven
The oven is electrically independent of the
hob, and has it’s own electrical supply and
connection.
The thermostat switch has a separate switch
body assembled onto the front from the shaft
assembly and when the thermostat is set to a
cooking temperature, one set of contacts is
closed to switch power from the oven
thermostat to the bottom heating element in
the oven. The second switch contact of this
switch assembly remains open in this setting
and isolates power from the top element inner
coil. The top element outer coil is directly
switched on from the oven thermostat.
Accordingly only the top outer element and
the bottom element are used when a cooking
temperature is selected. 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.
A power switch on the control panel isolates
all power to the controls of the oven. With the
power switch Off all functions of the oven are
inoperable.
NOTE: The supply voltage is fed directly to
the input side of the power relay whenever the
electrical supply is on.
With the power switch On (illuminated) power
is directly supplied to the 60 minute bake
timer, door microswitch, light switch, and the
hold switch circuit. (On units manufacture
prior to serial number 232053 power is also
supplied directly to the temperature control
circuit). Accordingly the oven circulation fan
will operate when the door is closed, and with
door open the oven light will come on and the
circulation fan will shut down, as these are
controlled via the door microswitch. The
control panel light switch will turn the oven
light on when the door is closed only when the
light switch is held in.
When the thermostat control is set to the Grill
position the first switch contact opens and the
second switch contact closes.
This
arrangement allows power to be provided to
the top element inner coil when the thermostat
is On, and isolates power from going to the
bottom heating element. The top element
outer coil which is directly fed from the oven
thermostat switch is therefore On in
conjunction with the top element inner coil
when the thermostat is set to the Grill position.
As both the top inner and outer element coils
are thermostatically controlled, the elements
will cycle On/Off with the door closed as the
thermostat setting in the Grill position is 300°C
(600°F). If the Grill position is selected with
the door open, the elements will remain On
continuously and the circulation fan will be
turned Off. The control panel Grill indicator
will illuminate when the thermostat is set to
the Grill position and will cycle On and Off
with the main heating indicator light.
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 E311 Turbofan convection oven features
a Roast-and-Hold system which can be used
to automatically set the oven to a fixed holding
For units manufactured from serial number
232054, power to the temperature control
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temperature at the end of a timed cooking
period.
thermostat. At this point the temperature
control is now maintained by the hold
thermostat as previously described. To
cancel the hold circuit the Roast-and-Hold
switch is turned Off. This turns off the
contactor which removes power from the 3
hour timer and closes the contactor pole on
the contactor that feeds the main oven
thermostat.
From serial number 232054: When the
Roast-and-Hold switch is turned On the switch
will illuminate and turn on a relay found on the
inside of the control panel. (This relay has
two poles with changeover contacts, but only
one pole is used). When this relay is switched
On the normally closed contact opens,
isolating the normal power supply to the oven
thermostat and the normally open contact
closes supplying power to the 3 hour roast
timer.
The factory preset hold thermostat can be
adjusted as required to change the holding
temperature if necessary. Refer Service
section for this procedure.
To serial number 232053: When the Roastand-Hold switch is turned On the switch will
illuminate and turn on a mini-contactor found
on the inside of the control panel. When this
relay is switched On a normally closed switch
pole on the contactor is open and the normal
power supply to the oven thermostat is isolated. A second normally open switch pole is
closed and this provides power to the 3 hour
roast timer.
Hob
The hob is electrically independent of the
oven and has it’s own electrical supply and
connection.
Four electric hot-plate elements are provided,
one being 2000 Watts, and the other three
being 1500 Watts.
Each element has three internal heating wire
coils which are all switched together from the
control energy regulator. Normally all three
heating wires in the element will be on
together whenever the control calls for heat.
However if the element hot-plate temperature
rises above a pre-set limit, an internal
temperature limiter switch will turn off one of
these heating wires to prevent the hot-plate
overheating.
This situation is normally
created through HI heat settings without pans
on the hot-plate or unsuitable pan bases
being used (refer Operation Section). The
limit switch will automatically cut in and out to
prevent the element from overheating.
If the roast timer is in the Hold (vertical)
position the timer switch contacts will be in
their normally closed position and supply
power directly to the Hold thermostat located
behind the control panel.
The Hold
thermostat is factory set to 75°C (167°F) and
will directly supply power to the bottom
heating element as required to maintain its
preset temperature.
If the main thermostat is turned On, power will
also be supplied to the top outer element coil
through the first switch contact of the
thermostat front switch assembly. In this case
the thermostat heating light will also cycle On/
Off as the Hold thermostat
maintains
temperature.
Each element is controlled by an energy
regulator that switches the element off in the
OFF position, turns the element on
continuously in the HI position, and in
between cycles the element on/off to create
different heat control.
In the Roast-and Hold mode the 3 hour timer
can be set to a selected roasting time. During
this time period the normally open switch
contacts of the timer are closed. The timer
has two change over switches and in this
position one is used to supply power to its
timing motor and the other is used to switch
power directly to the main oven thermostat.
During the 3 hour timer run-down period the
oven temperature will be controlled by the
main oven thermostat to the set temperature
and operate as previously described.
The control indicator light will be illuminated
whenever a heat setting is selected to indicate
that the element is operating. It does not
cycle on/off with the element on/off cycling.
The Troubleshooting Guide 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.
When the 3 hour timer has run down and
reached the Hold position the two switch
contacts change over to their normally closed
position which isolates power from the timer
motor and the oven thermostat. It also
switches power back to the oven hold
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4. MAINTENANCE
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
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, ensure
that the lip is facing the oven opening. Fit
the top and bottom seals first, then the side
seals.
4.1 CLEANING
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
Clean with conventional glass cleaners
EXTERIOR
Clean with a good quality stainless steel
cleaning compound. Harsh abrasive cleaners
may damage the surface.
COOK TOP ELEMENTS
Remove all spillovers with a damp cloth as
soon as possible.
When cool, the element may be cleaned
with a nylon scourer or a damp cloth and
domestic cleaning powder. Do not scratch
or scrape the surface. After cleaning, wipe
surface with a clean damp cloth. Dry the
element by switching it on for a short time
and then wipe just a trace of cooking oil over
the surface. (This is particularly important if
the cooktop will not be used for a period of
time).
INTERIOR
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.
OVEN RACKS
To remove, slide out to the stop position, raise
the front edge up, and lift out.
Use clean dry saucepans, as water, salt,
condensation and spillovers can cause hotplate corrosion. Specialised cleaners readily
available for domestic cooktops are also
recommended. With regular use they will
build up a protective coating on the element
surface and make future cleaning easier.
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, unscrew the oven lamp glass and
lift the baffle out. To replace, locate the
bottom edge of the baffle over the bottom
element terminal plate and secure in place
with the oven lamp glass.
IMPORTANT: DO NOT OVER
TIGHTEN LAMP GLASS.
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4.2 ROUTINE PROCEDURES
PROCEDURE
INTERVAL
DOOR SEALS
Check for deterioration.
12 months
DOOR PIVOT BUSHES
Check for wear.
12 months
DOOR CATCH
Ensure that catch is adjusted such that the door closes
properly.
12 months
ELEMENTS
Check that element resistances are correct to their rating
(refer 6.3.11)
12 months
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5. TROUBLE SHOOTING
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
5.1 OVEN
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.
(Fan only operates with door
closed).
Close door.
Door microswitch out of
adjustment.
(Refer fault diagnosis 6.1.2)
Adjust.
(Refer service section 6.4.2)
Door microswitch faulty
(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 6.3.15)
Wiring.
Check for 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)
OVEN LIGHT NOT
ILLUMINATING - DOOR
CLOSED
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 6.3.7)
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.
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FAULT
60 MINUTE TIMER NO TIME
UP BUZZER
POSSIBLE CAUSE
REMEDY
Zero (time up) position not set
correctly.
(Refer service section 6.4.5)
Buzzer faulty.
(Refer fault diagnosis 6.1.5)
Replace.
(Refer service section 6.3.6)
Timer not switching on buzzer.
(Refer fault diagnosis 6.1.5)
Replace.
(Refer service section 6.3.7)
Indicator faulty.
(Refer fault diagnosis 6.1.6)
Replace.
(Refer service section 6.3.3)
Power relay faulty (From S/N
232054 only).
(Refer fault diagnosis 6.1.7)
Replace.
(Refer service section 6.3.5)
Hold relay/mini contactor faulty.
(Refer fault diagnosis 6.1.7)
Replace.
(Refer service section 6.3.11)
Thermostat faulty
(Refer fault diagnosis 6.1.7)
Replace.
(Refer service section 6.3.9)
NO TEMPERATURE
CONTROL
Thermostat faulty
(Refer fault diagnosis 6.1.8)
Replace.
(Refer service section 6.3.9)
SLOW RECOVERY
Oven in ‘Roast ‘n Hold’ mode.
Switch off ‘Roast ‘n Hold’.
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)
Element(s) not working.
Correct element fault.
(Refer Fault: Top element,
Fault: Bottom element)
BOTTOM ELEMENT NOT
WORKING
Element faulty (blown).
(Refer fault diagnosis 6.1.10)
Replace.
(Refer service section 6.3.13)
TOP ELEMENT NOT
WORKING (IN BAKE MODE—
NOT GRILL / BROIL MODE)
Element faulty / blown.
(Refer fault diagnosis 6.1.11)
Replace.
(Refer service section 6.3.13)
NO THERMOSTAT HEATING
INDICATOR
Indicator faulty.
(Refer fault diagnosis 6.1.12)
Replace.
(Refer service section 6.3.3)
GRILL NOT WORKING
Element faulty / blown.
(Refer fault diagnosis 6.1.13)
Replace.
(Refer service section 6.3.13)
60 MINUTE TIMER NO TIME
UP INDICATOR
NO HEAT
GRILL INDICATOR LIGHT NOT Indicator faulty.
WORKING
(Refer fault diagnosis 6.1.14)
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Replace.
(Refer service section 6.3.3)
© Moffat Ltd, April 2005
FAULT
ROAST TIMER (180 MINUTE)
WILL NOT TIME DOWN
NO HOLD INDICATOR
HOLDING TEMPERATURE
INCORRECT
DOOR DOES NOT CLOSE
POSSIBLE CAUSE
REMEDY
Roast ’n’ Hold switch not
depressed.
Depress switch. Switch will
illuminate.
No power to timer / timer faulty.
(Refer fault diagnosis 6.1.15)
Correct electrical fault / replace
timer.
(Refer service section 6.3.8)
‘Roast ‘n Hold’ switch faulty.
(Refer fault diagnosis 6.1.15)
Replace.
(Refer service section 6.3.4)
Faulty indicator.
(Refer fault diagnosis 6.1.16)
Replace.
(Refer service section 6.3.3)
Faulty timer.
(Refer fault diagnosis 6.1.16)
Replace.
(Refer service section 6.3.8)
Hold thermostat set
temperature incorrect.
Adjust to correct temperature.
(Refer service section 6.4.4)
Hold thermostat faulty.
(Refer fault diagnosis 6.1.17)
Replace.
(Refer service section 6.3.10)
Tray in way of door.
Correctly position tray in rack.
Door seal obstruction.
Correctly install door seal.
(Refer service section 6.3.19)
Door handle installed
incorrectly.
Fit correctly.
(Refer installation section)
Door ball catch setting incorrect. Adjust.
(Refer service section 6.4.3)
DOOR SEAL LEAKS
Door pivot bushes / pins worn.
Replace.
(Refer service section 6.3.20)
Door seal damaged.
Replace.
(Refer service section 6.3.19)
Door seal incorrectly fitted.
Correctly install door seal.
(Refer service section 6.3.19)
Door ball catch setting incorrect. Adjust.
(Refer service section 6.4.3)
Door pivot bushes / pins worn.
Convection Oven
Revision 4/F3544
-17-
Replace.
(Refer service section 6.3.20)
© Moffat Ltd, April 2005
5.2 HOB
FAULT
THE HOB 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 fuses at the rear of the hob Replace fuse link.
have blown.
(Refer service section 6.3.21)
Check electrical fault.
Incorrect electrical supply.
Ensure electrical supply correct.
REAR ELEMENTS DO NOT
WORK
One fuse at rear of hob has
blown.
Check electrical fault.
Replace fuse link.
(Refer service section 6.3.21)
FRONT ELEMENTS DO NOT
WORK
One fuse at rear of hob has
blown.
Check electrical fault.
Replace fuse link.
(Refer service section 6.3.21)
ONE ONLY ELEMENT DOES
NOT WORK
Energy regulator faulty.
(Refer fault diagnosis 6.1.19)
Replace energy regulator.
(Refer service section 6.3.23)
Element failed.
(Refer fault diagnosis 6.1.18)
Replace element.
(Refer service section 6.3.22)
Faulty indicator.
Replace.
(Refer service section 6.3.24)
Energy regulator faulty.
(Refer fault diagnosis 6.1.19)
Replace.
(Refer service section 6.3.23)
NO HEAT CONTROL
Energy regulator faulty.
(Refer fault diagnosis 6.1.19)
Replace.
(Refer service section)
SLOW HEATING ON
ELEMENT
Cooking pot / pan uneven base. Use suitable pot / pan.
(Refer operation 3.2)
NO INDICATOR LIGHT
Energy regulator faulty.
(Refer fault diagnosis 6.1.19)
Replace.
(Refer service section 6.3.23)
One element heating coil faulty. Replace element.
(Refer fault diagnosis 6.1.18) (Refer service section 6.3.22)
Element temperature limiter
activated.
(Refer fault diagnosis 6.1.19)
Convection Oven
Revision 4/F3544
-18-
Use suitable pots.
Replace element if faulty.
(Refer service section 6.3.22)
© Moffat Ltd, April 2005
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
PAGE NO.
DIAGNOSIS..............................................................................................................21
6.1.1 Oven
Does Not Operate / Start............................................................................21
6.1.2 Fan
Does Not Operate.........................................................................................21
6.1.3
Oven Light Not Illuminating—Door Open............................................................21
6.1.4
Oven Light Not Illuminating—Door Closed..........................................................21
6.1.5
60 Minute Timer No Time Up Buzzer..................................................................22
6.1.6
60 Minute Timer No Time Up Indicator................................................................22
6.1.7 No Heat................................................................................................................22
6.1.8 No
Temperature Control......................................................................................23
6.1.9 Slow
Recovery.....................................................................................................23
6.1.10 Bottom
Element Not Working...............................................................................23
6.1.11
Top Element Not Working (In Bake Mode—Not Grill / Broil)...............................23
6.1.12 No
Thermostat Heating Indicator.........................................................................23
6.1.13
Grill Not Working..................................................................................................24
6.1.14 Grill
Indicator Not Working...................................................................................24
6.1.15
Roast Timer (180 Minute) Will Not Time Down...................................................24
6.1.16 No
Hold Indicator.................................................................................................24
6.1.17 Holding
Temperature Incorrect............................................................................25
6.1.18 Hob
Element Does Not Work...............................................................................25
6.1.19 Hob
Heat Not Controlled Correctly......................................................................25
6.2 ACCESS................................................................................................................................26
6.2.1 Control Panel.......................................................................................................26
6.2.2 Service
Panel (Rear Panel).................................................................................26
6.2.3 Baffle....................................................................................................................26
6.2.4 Control
Panel (Rear)............................................................................................26
6.2.5 Hob
(Cook Top)....................................................................................................27
6.2.6 Hob
Base Panel...................................................................................................27
6.3 REPLACEMENT....................................................................................................................27
6.3.1 Light
Bulb / Glass.................................................................................................27
6.3.2 Door
Microswitch..................................................................................................27
6.3.3 Indicator Neon Light.............................................................................................27
6.3.4
Power / Roast / Lights Switches..........................................................................28
6.3.5 Power
Relay (From S/N 232054).........................................................................28
6.3.6 Buzzer..................................................................................................................28
6.3.7 Bake Timer...........................................................................................................28
6.3.8 Roast Timer..........................................................................................................29
6.3.9 Thermostat...........................................................................................................29
6.3.10 Hold
Thermostat...................................................................................................29
6.3.11 Hold
Relay (From S/N 232054)............................................................................30
6.3.12 Mini-Contactor (To S/N 232053)..........................................................................30
6.3.13 Elements..............................................................................................................30
Convection Oven
Revision 4/F3544
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© Moffat Ltd, April 2005
6.3.14
Fan.......................................................................................................................30
6.3.15 Motor....................................................................................................................31
6.3.16 Outer Glass..........................................................................................................31
6.3.17
Inner Glass...........................................................................................................32
6.3.18
Inner Glass Seal...................................................................................................32
6.3.19 Door Seals...........................................................................................................32
6.3.20 Door
Pivot Bushes...............................................................................................32
6.3.21
Cook Top Fuses...................................................................................................32
6.3.22 Hob
Elements.......................................................................................................33
6.3.23 Hob
Energy Regulators........................................................................................33
6.3.24 Hob
Indicator Light...............................................................................................33
6.3.25 Hob
Centre Securing Stud...................................................................................33
6.4 ADJUSTMENT
/ CALIBRATION..........................................................................................34
6.4.1 Thermostat Calibration.........................................................................................34
6.4.2 Door
Microswitch Adjustment..............................................................................35
6.4.3 Door
Alignment....................................................................................................35
6.4.4 Hold
Temperature Adjustment.............................................................................35
6.4.5
60 Minute Timer Zero Position Adjustment..........................................................35
Convection Oven
Revision 4/F3544
-20-
© Moffat Ltd, April 2005
Fan motor faulty
Check the supply voltage across motor
terminals. If there is no voltage then check
the electrical connections of supply wiring.
6.1 FAULT DIAGNOSIS
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.
If voltage is correct then check the oven fan
for free rotation. Remove any obstruction.
If incorrect, check electrical connection of
supply wiring and / or check electrical supply.
6.1.3 OVEN LIGHT NOT ILLUMINATING—
DOOR OPEN
If fan is free to spin and the voltage supply is
correct, then the motor is faulty—replace.
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: When power switch is latched, it
should illuminate if operating correctly.
If there is no voltage, open oven door and
manually depress door microswitch actuator
at top right of oven. If this activates the fan,
then the microswitch actuator arm at rear of
oven requires adjustment.
6.1.2 FAN DOESN’T OPERATE
Check voltage across micro-switch terminals
to neutral.
Microswitch out of adjustment
Open oven door and manually depress door
microswitch actuator at top right of oven. If
this activates the fan, then the microswitch
actuator arm at rear of oven requires
adjustment.
With the door closed there should be power to
the com terminal and the n.o. terminal.
Microswitch faulty
Check voltage across microswitch terminals to
neutral.
6.1.4 OVEN LIGHT NOT ILLUMINATING—
DOOR CLOSED
With the door open there should be power to
the com terminal and the n.c. terminal.
If not, microswitch is faulty—replace.
Light switch faulty
Check voltage to the bottom terminal of the
switch. If there is no voltage, then check
wiring.
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 switch depressed, check voltage at top
terminal. If there is no voltage, then replace
the switch.
If not, microswitch is faulty—replace.
If voltage is correct, then check wiring to light.
Microswitch
NOTE: Alternately, perform a continuity test
across the terminals with the light switch
depressed.
com
n.c.
n.o.
Figure 6.1.1
Convection Oven
Revision 4/F3544
-21-
© Moffat Ltd, April 2005
Ensure that the power switch on the unit is
turned on, and check for voltage at terminal 4
of the power relay. If there is no voltage at 4
then check that the relay is energised (i.e.
voltage between terminals A and B. If not
then check wiring. If there is voltage and
there is no power at terminal 4 then the relay
is faulty - replace.
6.1.5 60 MINUTE TIMER NO TIME UP
BUZZER
Buzzer faulty
With timer in ‘zero’ position, check the buzzer
at top of control panel (inside) for voltage
across terminals. If voltage is correct then
buzzer is faulty—replace.
If there is voltage at terminal 4 then check the
hold relay and the thermostat (refer below).
If there is no voltage, then check wiring.
Hold relay faulty - From S/N 232054
Check voltage to terminal 1 on oven
thermostat. If there is no voltage then check
voltage at terminals 1 and 7 on hold relay
(inside control panel). If there is no voltage to
terminal 7 then check wiring. If there is no
voltage at terminal 1 then check that the relay
is not energised (i.e. there should be no
power between terminals A and B on the
relay). If the relay is not energised, and there
is no voltage at terminal 1 then the relay is
faulty - replace.
Buzzer
Buzzer Terminals
Figure 6.1.2
Timer not switching on buzzer
With timer in zero position, check voltage to
top connection (terminal 1) and bottom
connection (terminal 2) of timer. If there is no
voltage at terminal 1 then check wiring.
NOTE: The relay should only be energised
when the ’Roast ’n Hold’ switch is depressed.
If no voltage at terminal 2 then timer is
faulty—replace.
If there is voltage at terminal 1 then check all
wiring to the thermostat.
NOTE: Timer will continue to run for
approximately three minutes below zero.
Buzzer and time up indicator will continue
until the timer manually switched off (to
vertical position).
B
A
6.1.6 60 MINUTE TIMER NO TIME UP
INDICATOR
7
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.
1
4
Figure 6.1.4
If there is no voltage then check wiring.
Hold mini-contactor faulty - to S/N 232053
Check voltage to terminal 1 on oven
thermostat. If there is no voltage then check
voltage through terminal 21 and 22 on mini
contactor (inside control panel). If there is no
voltage to terminal 21 then check wiring. If
there is no voltage to terminal 22 then check
that the contact indicator on centre of the
contactor is in ‘0’ position. If indicator is in ‘0’
position and there is no voltage to 21 then
replace contactor.
6.1.9 NO HEAT
Power relay faulty - From S/N 232054
Check voltage to terminal 7 on power relay
(on rear panel of oven). If there is no voltage
then check wiring to the relay.
Power
Relay
If indicator is in the ‘1’ position then check the
voltage across contactor coil terminals A1 and
A2.
Figure 6.1.3
Convection Oven
Revision 4/F3544
-22-
© Moffat Ltd, April 2005
6.1.10 BOTTOM ELEMENT NOT WORKING
Terminal A1
Element faulty (blown)
With the thermostat on and heating check
voltage across bottom 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.
Terminal 21
Contact
Indicator
Terminal 22
Terminal A2
Figure 6.1.5
NOTE: There should be no voltage across
these terminals when ‘Roast ‘n Hold’
is not selected.
Bottom Element
Terminals
If the indicator is in position ‘1’ with no voltage
across A1 and A2 then the contactor is
faulty—replace.
Figure 6.1.6
Thermostat faulty
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal 2 on the thermostat. If
there is no voltage then the thermostat is
faulty—replace.
If there is no voltage then check voltage is
being supplied to bottom element from
terminal 6 on switch block mounted to the
front of the thermostat (fig 6.4.1). If no
voltage at 6 then check for voltage at terminal
P6. If power to P6 (and none to 6), then the
thermostat is faulty—replace.
If the voltage is correct and the heating light is
on then check all wiring to elements.
6.1.8 NO TEMPERATURE CONTROL
NOTE: Correct bottom element current draw:
220—240V: 8.7A ± 5%
Thermostat faulty
With thermostat in off (vertical) position, the
heating indicator should be off. If not then the
thermostat is faulty—replace.
6.1.11 TOP ELEMENT NOT WORKING (IN
BAKE MODE—NOT GRILL / BROIL)
Element faulty / blown
Check that the thermostat phial is in correct
location and check for broken capillary tube—
replace if damaged.
NOTE: In bake mode (50—270°C or 100—
550°F) the outer coil only of the top element assembly operates. The inner coil
works only when in grill or broil mode.
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 regain temperature. If the
temperature overshoots by 50°C and
continues, switch off and replace.
With thermostat on and heating check voltage
across top element terminals at rear of oven.
If voltage is correct then check current draw of
the element. If there is no current draw then
the element is faulty—replace.
If there is no voltage check voltage is being
supplied to the top element from terminal 2 on
switch block mounted to front of thermostat.
6.1.9 SLOW RECOVERY
Thermostat out of calibration
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.
If voltage is correct then check wiring.
NOTE: Top outer element current draw:
220—240V: 3.5A ± 5%
6.1.12 NO THERMOSTAT HEATING
INDICATOR
Indicator faulty
Check the voltage across the indicator
terminals. If the voltage is correct then the
indicator is faulty—replace.
NOTE: Thermostat cycling span should be
±15°C or 27°F
Convection Oven
Revision 4/F3544
If there is no voltage then check wiring.
-23-
© Moffat Ltd, April 2005
From Serial Number 232054:
If no voltage at terminal 4, check the relay
behind the control panel is energised (i.e.
voltage across terminals A and B). If there
is no voltage then check wiring from the
hold switch. If there is voltage then check
that there is voltage at terminal 4 and
terminal 7 of the hold relay. If there is
voltage at 7, but none at 4 (and the relay is
energised) then relay is faulty - replace. If
no voltage at 7 then check wiring.
6.1.13 GRILL NOT WORKING
Element faulty / blown
With thermostat in grill or broil position (fully
clockwise), check that the grill indicator on the
control panel indicates. If not, then check the
voltage at terminal P5 on the thermostat
switch (fig 6.4.1). If there is no voltage check
that the switch has power on terminal 5. If
there is power at terminal 5, but not at P5
when thermostat is in grill position, then the
switch is faulty—replace thermostat assembly.
To Serial Number 232053:
If no voltage at terminal 4, then check mini
contactor behind control panel is latched to
the ‘1’ position. If contactor is in ‘1’
position then check wiring.
If grill indicator is illuminated, but the top inner
grill element is not functioning, check the
voltage at the top inner element coils at rear
of oven. If the voltage is correct then check
current draw of element. If there is no current
draw then element is faulty—replace.
If contactor is in ‘0’ position when ‘Roast ‘n
Hold’ switch illuminated then check the
voltage across terminals A1 and A2 of mini
contactor (fig 6.1.3). If the voltage is
correct but the contactor in the off (‘0’)
position then the contactor is faulty—
replace.
NOTE: Top inner element current draw:
220—240 V: 7.8A ± 5%
6.1.14 GRILL INDICATOR NOT WORKING
Indicator faulty
Check the voltage across the indicator
terminals. If the voltage is correct then
indicator is faulty—replace.
If there is no voltage across A1 and A2
then check wiring.
‘Roast ‘n Hold’ switch faulty
Check if the switch latches. If the switch does
not latch then the switch is faulty—replace.
If there is no voltage then check wiring.
6.1.15 ROAST TIMER (180 MINUTE) WILL
NOT TIME DOWN
With the switch latched, check voltage across
terminal 1 to terminal 3 or 4. If there is no
voltage then check for fault in wiring.
No power to timer
Check the voltage at terminal 5 on underside
of the 180 minute timer.
Check voltage across terminal 2 to terminal 3
or 4. If there is no voltage then switch is
faulty—replace.
Check that one lead of timer motor is
connected to terminal 5 of timer and the other
lead is connected to neutral of ‘Roast ’n Hold’
switch.
NOTE: When the switch is latched, it should
illuminate if operating correctly.
If voltage at terminal 5 is correct and wiring is
correct then the timer motor is faulty—replace
timer.
6.1.16 NO HOLD INDICATOR
Indicator faulty
Check the voltage across the indicator
terminals. If the voltage is correct then the
indicator is faulty—replace.
If there is no power at terminal 5 check for
power supply at terminal 4 of timer. If there is
voltage at terminal 4 and not at terminal 6 with
timer set, then timer switch is faulty—replace
timer.
If there is no voltage then check wiring.
Timer faulty
Check the voltage at terminal 3 of timer, with
timer in hold position. If the voltage is correct
then check wiring.
If there is no voltage then check voltage at
terminal 1 of timer. If there is voltage at 1, but
no voltage at terminal 3 with timer in hold
position, then timer switch is faulty—replace.
Terminal 4
Terminal 1
Terminal 2
Terminal 5
Terminal 6
Terminal 3
Figure 6.1.7
Convection Oven
Revision 4/F3544
-24-
© Moffat Ltd, April 2005
6.1.17 HOLDING TEMPERATURE
INCORRECT
6.1.19 HOB HEAT NOT CONTROLLED
CORRECTLY
Energy regulator faulty
Ensure that the energy regulator fitted is
correct type: NZC Model TC108 15A 240V ac.
Hold thermostat faulty
With the power switch on and illuminated,
‘Roast ‘n Hold’ switch on and illuminated, and
the roast (180 minute) timer set to hold, check
that the hold indicator is illuminated.
Check voltage to terminal 5. If no voltage
check wiring.
Check for continuity from terminals N to
neutral on supply terminal block. If no neutral
supply, check wiring.
With a cold oven (ie room temperature) check
that the top outer and bottom oven elements
only are heating. Test the voltage across the
bottom element and top element terminals at
the rear of oven. If the voltage is correct then
refer Fault: Bottom element not working
(trouble shooting section).
With switch in ‘off’ position there should be no
voltage at terminal 2 (open circuit between
terminal 5 and terminal 2). With control set to
a LO to HI heat setting terminal 2 should be
switched on. If not energy regulator is
faulty—replace.
NOTE: If the main thermostat is set to off
(vertical) position and ‘Roast ‘n Hold’
mode is selected, then only the
bottom element will heat.
With switch in ‘off’ position there should be no
voltage at terminal 3 (open circuit between
terminal 5 and terminal 3). With control set to
a LO to HI heat setting terminal 3 should be
switched on. If not energy regulator is
faulty—replace.
If there is no voltage at the element terminals,
check the voltage at terminal 2 (top) of the
hold thermostat at bottom rear of control panel
(fig 6.3.12). If there is no voltage then check
wiring.
Above checks can be made with or without
electrical supply switched on, however with
electrical supply on, the terminal 3 element
supply will cycle on / off at different time
ranges dependent on control setting.
If the voltage is correct, and the thermostat is
adjusted above oven temperature, then check
for output voltage at terminal 1 (bottom). If
there is no voltage and the thermostat will not
switch on then the thermostat is faulty—
replace.
To check for correct energy regulator on / off
cycling, electrical supply needs to be on.
If the voltage is correct but the bottom
element is not working then check wiring.
With control set to full on (HI) position,
terminal 3 (power to element) should be on
continuously. With control set to position 5
terminal 3 (power to element) should cycle on
for approximately eight seconds and off for
approximately 12 seconds.
6.1.18 HOB ELEMENT DOES NOT WORK
Element faulty
Remove red wire from terminal 4, black wire
from terminal 1 and remove two terminal links.
Check element coil resistances are correct.
Lower settings will give longer off times and
shorter on times, whilst higher settings will
give shorter off times and longer on times.
Element temperature limiter tripped
Each of the hot plate elements has an inbuilt
non-serviceable temperature limiter.
Terminals Terminals Terminals
1—4
2—4
2—3
1500 W
68 ohms
200 ohms 100 ohms
2000 W
61 ohms
169 ohms 61 ohms
If the element is set to a high heat setting with
no cooking pan on the element, or if the
element has an unsuitable pan (refer
operating instructions) that does not allow the
element to dissipate it’s heat, the inbuilt
temperature limiter will turn off one of the
heating coils in the element to prevent the
element from overheating.
An open circuit indicates faulty element coil—
replace element.
If above readings are correct check insulation
resistance of each element coil by checking
each element terminal to earth / ground or
conduct megger or dielectric withstand test on
element. A short to earth / ground indicates
faulty element—replace.
If element passes above tests then check
wiring.
Convection Oven
Revision 4/F3544
-25-
© Moffat Ltd, April 2005
6.2 ACCESS
6.2.3 BAFFLE
1) Remove trays, racks, element cover and
left hand side rack.
6.2.1 CONTROL PANEL
2) Undo lamp cover.
1) Open the oven door. Remove the
micro-switch button by pulling straight off.
Lamp
Cover
2) Undo the two screws now visible.
Microswitch
Button
Side
Rack
Two
Screws
Element
Guard
Figure 6.2.4
3) Remove baffle.
Figure 6.2.1
3) Panel is now free to hinge along right
hand side. When closing the panel ensure
wires and capillary tube are clear of metal
or other terminals.
6.2.4 CONTROL PANEL—REAR
Buzzer
Power Switch
Heating Indicator
Grill / Broil Indicator
Thermostat
Bake Time Up
Indicator
Bake Timer (60 minute)
Figure 6.2.2
Roast ‘n Hold Switch
6.2.2 SERVICE (REAR) PANEL
Hold Relay/Mini Contactor
1) Undo the four screws holding the panel.
Roast ‘n Hold Time
Up Indicator
Roast Timer (180 minute)
Four
Screws
Light Switch
Hold Thermostat
Figure 6.2.3
2) Remove panel.
Figure 6.2.5
Convection Oven
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© Moffat Ltd, April 2005
6.2.5 HOB (COOK TOP)
6.3 REPLACEMENT
1) Remove the nine screws securing the
hob back panel to the unit.
6.3.1 LIGHT BULB / GLASS
1) Unscrew lamp cover.
Hob Back
Panel
Lamp
Cover
Figure 6.3.1
Figure 6.2.6
2) Unscrew bulb out of fitting.
2) Remove both fuses.
3) Screw in replacement bulb.
3) Remove the two screws securing the
retaining clamp to the centre rear of the
hob.
4) Ensure seal fitted. Screw lamp cover into
holder with baffle fitted (do not over
tighten).
6.3.2 DOOR MICROSWITCH
1) Remove service panel (refer 6.2.2).
2) Remove two screws holding microswitch
to bracket.
Two
Screws
Figure 6.2.7
4) Lift out hob for servicing.
Two Screws
6.2.6 HOB BASE PANEL
1) Remove hob (refer 6.2.5).
2) Turn the hob over and remove eight
screws securing the base panel to the
hob.
Figure 6.3.2
3) Transfer wires to new micro-switch and
re-assemble.
4) Adjust microswitch (refer 6.4.2).
Screws
(Eight)
6.3.3 INDICATOR NEON LIGHT
1) With control panel open (refer 6.2.1)
remove the wires from the back of the
neon.
Figure 6.2.8
Convection Oven
Revision 4/F3544
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© Moffat Ltd, April 2005
6.3.6 BUZZER
Neon
Wires
1) Remove control panel (refer 6.2.1).
2) Remove two screws holding buzzer
bracket to panel.
Two Screws
Figure 6.3.3
2) From back push neon through front of
panel rotating clockwise.
3) Push new neon in from front of panel, and
reconnect wires.
6.3.4 POWER / ROAST / LIGHTS
SWITCHES
Figure 6.3.6
3) Withdraw and remove two screws holding
buzzer to bracket.
1) With control panel open (refer 6.2.1)
remove the wires from the back of the
switch, noting their positions.
Switch
Wires
Two
Screws
Figure 6.3.7
Figure 6.3.4
2) From back push switch through front of
panel.
4) Transfer wires to new buzzer.
5) Reassemble in reverse order.
3) Push new switch in from front of panel,
and reconnect wires.
6.3.7 BAKE TIMER
6.3.5 POWER RELAY (FROM S/N 232054)
1) Remove bake timer knob by pulling it
firmly away from control panel.
1) Remove service panel (refer 6.2.2).
2) Open control panel (refer 6.2.1) and undo
two screws securing timer.
2) Remove the two screws securing the relay
to the rear panel.
Two Screws
Power
Relay
Figure 6.3.8
Figure 6.3.5
3) Transfer wires to new timer.
3) Transfer the wires to the new relay.
4) Withdraw old timer and insert new timer,
securing with screws.
4) Secure the relay to the rear panel with two
screws and replace the service panel.
Convection Oven
Revision 4/F3544
5) Replace knob.
-28-
© Moffat Ltd, April 2005
6.3.8 ROAST TIMER
5) Withdraw old thermostat phial through
rear of oven.
1) Remove roast timer knob by pulling it
firmly away from control panel.
6) Remove fibreglass sleeve from old
thermostat and fit it to replacement
thermostat.
2) Open control panel (refer 6.2.1) and undo
two screws securing timer.
Fibreglass Sleeve
Thermostat Phial
Two Screws
Figure 6.3.9
Figure 6.3.12
3) Transfer wires to new timer.
7) Insert new thermostat.
4) Withdraw old timer and insert new timer,
securing with screws.
8) Re-assemble in reverse order.
5) Replace knob.
6.3.9 THERMOSTAT
6.3.10 HOLD THERMOSTAT
1) Pull knob off front of thermostat
1) Open control panel (refer 6.2.1) and undo
two screws securing hold thermostat
bracket.
2) Open control panel (refer 6.2.1) and undo
two screws securing thermostat.
Two Screws
Two Screws
Figure 6.3.10
Figure 6.3.13
3) Transfer wires to new thermostat.
2) Transfer wires to new thermostat.
4) Remove service panel (refer 6.2.2) and
from inside of oven loosen two screws
holding thermostat phial bracket.
3) Remove service panel (refer 6.2.2) and
from inside of oven loosen the thermostat
phial bracket.
Two
Screws
Two
Screws
Figure 6.3.11
Figure 6.3.14
Convection Oven
Revision 4/F3544
-29-
© Moffat Ltd, April 2005
4) Withdraw old thermostat phial through
rear of oven.
6.3.13 ELEMENTS
5) Insert new thermostat.
1) With service panel and baffle removed
(refer 6.2.2 and 6.2.3) remove the wires
from the element(s).
6) Re-assemble in reverse order.
2) Unscrew the element from inside the
oven.
6.3.11 HOLD RELAY (FROM S/N 232054)
1) Open control panel (refer 6.2.1) and
transfer wires from old hold relay to new
relay.
2) Remove two screws securing the old hold
relay to control panel.
Top Element
One Screw
Bottom Element
Two Screws
Figure 6.3.17
3) Pull element carefully to remove.
Hold Relay
4) Replace
order.
Figure 6.3.15
and re-assemble in reverse
Element Ratings ±5%
3) Secure new hold relay to the control panel
using two screws.
220—240V Top Inner Element
29.5 ohms
Top Outer Element
66.5 ohms
Bottom Element
27.3 ohms
6.3.12 MINI-CONTACTOR (TO S/N 232053)
6.3.14 FAN
1) Open control panel (refer 6.2.1) and
transfer wires from old mini-contactor to
new contactor.
2) Remove two screws securing old minicontactor to control panel.
1) With service panel and baffle removed
(refer 6.2.2 and 6.2.3) undo the centre
nut.
NOTE: LH thread - Turn clockwise to
loosen.
Two Screws
Centre Nut
Figure 6.3.16
3) Secure new mini-contactor to control
panel using two screws.
Figure 6.3.18
2) Replace and re-assemble in reverse
order.
Convection Oven
Revision 4/F3544
-30-
© Moffat Ltd, April 2005
3) Remove LH screw whilst supporting the
door. Lift bracket and remove door from
oven.
6.3.15 MOTOR
1) Remove fan (refer 6.3.15) and then
remove the wires that go to the motor.
2) Undo the four screws holding the motor
bracket in place (from the outside) and
remove motor assembly.
Screws (4)
LH Screw
60 Hz
Terminal
Neutral
50 Hz
Terminal
Figure 6.3.22
Earth /
Ground
4) Remove screws securing door handle.
Figure 6.3.19
Screws
3) Remove three screws holding motor to
bracket and remove motor.
Three Screws
Figure 6.3.23
5) Remove two screws in top trim and two
screws in bottom trim of door, and remove
trim panels.
Figure 6.3.20
4) Replace and re-assemble in reverse
order.
Two
Screws
5) Ensure wire connections are correct to the
voltage supply—60 Hz / 50 Hz (fig 6.3.23)
6.3.16 OUTER GLASS
1) Open door
Two Screws
2) Undo two screws securing Turbofan cover
plate to oven, and remove cover plate.
Figure 6.3.24
6) Lift outer glass away from door.
7) 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.
Two Screws
Figure 6.3.21
Convection Oven
Revision 4/F3544
-31-
© Moffat Ltd, April 2005
6.3.17 INNER GLASS
6.3.20 DOOR PIVOT BUSHES
1) Remove the outer glass as above.
Uncrimp the retaining lugs of the window
spacer and remove the spacer and glass.
1) Remove door as per steps one to three of
section 6.3.16.
2) Door bushes can now be removed and
replaced.
3) Reinstall door by reversing steps one to
three of section 6.3.16.
Retaining
Lugs
Door Pivot
Bush
Figure 6.3.25
2) 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.
Figure 6.3.27
6.3.21 COOK TOP FUSES
WARNING: DO NOT TOUCH THE
FUSES UNLESS THE POWER SUPPLY IS
SWITCHED OFF AT THE WALL.
6.3.18 INNER GLASS SEAL
1) Remove the door inner glass (refer
6.3.18).
1) Remove two screws securing the fuse
cover panel to the rear of the unit.
2) The inner glass seal can now be removed
and replaced.
NOTE: When fitting new seal, ensure join is
at top of door.
6.3.19 DOOR SEALS
Two Screws
1) Open oven door.
2) To remove, hold at their centre point and
pull forward until they unclip
Figure 6.3.28
2) The fuses can now be removed and the
fuse wire replaced as required.
15 Amp Fuses
Door Seals
Figure 6.3.26
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.
Convection Oven
Revision 4/F3544
Figure 6.3.29
-32-
© Moffat Ltd, April 2005
6.3.22 HOB ELEMENTS
6.3.24 HOB INDICATOR LIGHT
1) Remove hob (refer 6.2.5) and the hob
base panel (refer 6.2.6).
1) Remove hob (refer 6.2.5) and hob base
panel (refer 6.2.6).
2) Remove wires from element, noting their
positions (refer electrical wiring diagram
8.2).
2) Remove wires from back of indicator.
3) Unscrew centre nut and remove element
clamp.
4) Push new indicator in from top of panel
and reconnect wires.
3) From bottom, push indicator through top
of hob control panel, rotating clockwise.
Centre Nut
Indicator Wires
Element
Clamp
Figure 6.3.30
Figure 6.3.32
4) Element can now be removed through top
of hob and replaced.
6.3.25 HOB CENTRE SECURING NUT
6.3.23 HOB ENERGY REGULATORS
If the hob pressing is bowed excessively the
centre securing nut may have come away.
1) Remove hob (refer 6.2.5) and hob base
panel (6.2.6).
To repair:
1) Remove hob (refer 6.2.5) and the hob
base panel (refer 6.2.6).
2) Remove knob from top of hob control
panel by pulling firmly away from control
panel.
2) Inspect stud and securing nut.
3) Unscrew centre nut.
Centre Nut
Centre Securing Nut
Figure 6.3.33
Figure 6.3.31
3) Repair as necessary.
4) Turn the hob over and withdraw the
energy regulator.
5) Transfer the wires to the new energy
regulator (refer electrical wiring diagram
8.2).
5) Reassemble in reverse order.
Convection Oven
Revision 4/F3544
-33-
© Moffat Ltd, April 2005
Thermostat
6.4 ADJUSTMENT / CALIBRATION
6.4.1 THERMOSTAT CALIBRATION
IF
THE
OVEN
IMPORTANT:
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.
Figure 6.4.3
5) Carefully remove two screws holding grill/
broil switch to thermostat.
HINT: Tape grill/broil switch assembly
together before removal to prevent it from
springing apart.
Calibration Nut
Screws
Thermostat Shaft
Grill/Broil Switch
Grill/Broil Switch
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).
Thermostat
Figure 6.4.1
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.
Calibration Nut
Screws
Figure 6.4.5
Figure 6.4.2
8) Reassemble grill/broil switch onto
thermostat and fit assembly back onto
control panel.
4) The thermostat can now be removed.
9) Turn on power and
thermostat calibration.
recheck
oven
10) Repeat procedure if necessary.
Convection Oven
Revision 4/F3544
-34-
© Moffat Ltd, April 2005
6.4.2 DOOR MICROSWITCH ADJUSTMENT
6.4.4 HOLD TEMPERATURE ADJUSTMENT
1) Open oven door.
1) The hold temperature of the oven can be
adjusted by turning the hold thermostat
dial to the desired hold temperature. This
dial is located inside the control panel.
2) Remove service panel (refer 6.2.2).
3) With fingers, bend actuator arm of
microswitch so that switch operates when
door is in closed position.
Hold Thermostat
Dial
Actuator Arm
Figure 6.4.9
Figure 6.4.6
6.4.5 60 MINUTE TIMER ZERO POSITION
ADJUSTMENT
6.4.3 DOOR ALIGNMENT
1) Alignment of the door can be achieved by
loosening the two hex head bolts securing
the bottom plate to the oven body. The
plate may now be moved sideways or in/
out to achieve correct door alignment.
(Door should be parallel to bottom plate
and touching oven seal evenly). When
correct tighten bolts.
1) Remove 60 minute timer knob by pulling it
firmly away from control panel.
2) Open control panel (refer 6.2.1). Loosen
two screws on control panel holding 60
minute timer.
Two Screws
Figure 6.4.10
3) The timer can now be rotated as required
to ensure that the buzzer sounds at the
zero position.
Two Hex Head Bolts
Figure 6.4.7
2) To adjust the door catch, loosen locknut
and turn the slot (using the tool supplied
with the unit); anticlockwise to increase
roller height, clockwise to decrease roller
height.
Adjustment
Tool
Locknut
Figure 6.4.8
Convection Oven
Revision 4/F3544
-35-
© Moffat Ltd, April 2005
Convection Oven
Revision 4/F3544
PILOT
-36-
1500W
REAR
1500W
FRONT
RIGHT
15A FUSE
1500W
REAR
27 Amps 240V A.C.
COOKTOP MAX LOAD: 6.5kW
2000W
FRONT
LEFT
15A FUSE
L
N
E
E N
L
POWER
SWITCH
3
1
1
TIME
UP
2
4
2
3 5
B
4
6
3
60Hz
4
NO
NC
OVEN
LIGHT
DOOR
MICRO
SWITCH
NO
6 4
9
LIGHT
SWITCH
3
1
7
B
A
TOP
OUTER
HEATING
OVEN
T/STAT
13 Amps 240V A.C.
OVEN MAX LOAD: 3.1kW
1
FAN
50Hz
BUZZER
1Hr
TIMER
POWER
RELAY
HOLD
SWITCH
2
1
5
P5
3Hr
TIMER
3
1
6
P6
5
6
3
4
TOP
INNER
M
4
2
HOLD
B
A
HOLD
T/STAT
3
NC
1
7
GRILL
2
1
NO
6 4
9
HOLD
RELAY
7. ELECTRICAL CIRCUIT SCHEMATICS
From Serial Number 232054
© Moffat Ltd, April 2005
To Serial Number 232053
Convection Oven
Revision 4/F3544
-37-
© Moffat Ltd, April 2005
Convection Oven
Revision 4/F3544
-38-
32
31
19
25
21
T/STAT
HEAT
47
30
9
1
2
18
10
P6
2
3
1
2
4
2
1
3
1
POWER
28
22 TIME
UP
13
4
6
7
9
A
B
12
3
1
22
27
32 HOLD RELAY
45
3
2
23
4
6
20
1hr TIMER
17
5
P5
24
GRILL
28
34
7
P
E
43
11
21
9
NC
NO
12
10
26 13
2
4
ROAST
11
1
3
14
3
2
MICROSWITCH
COM
3
FAN MOTOR
1
37
z H06
BUZZER
30
41
35
36
N
37
1
4
6
5
4
7
E
z H05
29
40
TOP
ELEMENT
20
19
3
8
6
5
44
4
14
42
HOLD
LIGHT
3hr TIMER
43
15
33
41
17
6
16
5
16
2
1
LIGHTS
BOTTOM
ELEMENT
40
33
HOLD
T/STAT
4
34
48
48
9
7
46
6
4
45
1
3
1
26
39
46
38
MAINS
TERMINAL BLOCK
E
N
Ø
POWER RELAY
B
A
47
8. ELECTRICAL WIRING DIAGRAMS
8.1 OVEN
From Serial Number 232054
© Moffat Ltd, April 2005
To Serial Number 232053
Convection Oven
Revision 4/F3544
-39-
© Moffat Ltd, April 2005
8.2 COOK TOP (HOB)
Convection Oven
Revision 4/F3544
-40-
© Moffat Ltd, April 2005
9. SPARE PARTS
PART NO
DESCRIPTION
HOB
002888
Element Dia 160mm (1500W)
002920
Element Dia 180mm (2000W)
003056 Energy
Regulator
002754 Indicator
Light
003047 Knob
003049 Knob
Clip
002621 Fuse
Holder—15 Amp
CONTROLS—OVEN
021473
Switch - Power
024562
Power Relay (From S/N 232054)
024563
Power Relay Upgrade Kit (To S/N 232053)
017121 Thermostat
020823
Knob - Thermostat / Bake Timer
020849 Neon
Indicator
011760 Bake
Timer
011794 Buzzer
021476
Switch - ‘Roast n Hold’
011419
‘Roast n Hold’ Timer
021472
‘Roast n Hold’ Timer Knob
021474
Switch - Light
024562
Hold Relay (From S/N 232054)
022281
Hold Mini Contactor (To S/N 232053)
018223 Hold
Thermostat
002990 Microswitch
003002 Oven
Lamp Glass
003434 Silk
Gasket
013521
Oven Lamp - 40W Miniature Edison Screw
MOTOR & ELEMENTS
003113
Oven Top Element 208 Volts
003114
Oven Bottom Element 208 Volts
011604
Oven Top Element 240 Volts
003074
Oven Bottom Element 240 Volts
013431K Fan
Motor
013432 Oven
Fan
DOOR
014225
Oven Door Seal Strip Side
023257
Oven Door Seal Strip Top / Bottom
021469 Handle
Assembly
021468 Handle
021465 Handle
Bracket
023264
Door Outer Glass
023263
Door Inner Glass
011005 Door
Catch
013610 Door
Bush
RACKS
023255
Oven Side Rack LH
023256
Oven Side Rack RH
023254 Oven
Rack
004874
Bottom Element Guard
004595
Fan Baffle
Convection Oven
Revision 4/F3544
-41-
© Moffat Ltd, April 2005
10. ACCESSORIES
OVEN RACKS (PART NO 23254)
SCONE TRAYS (PART NO 02083)
Convection Oven
Revision 4/F3544
-42-
© Moffat Ltd, April 2005
11. PARTS DIAGRAMS
58
11.1 OVEN MAIN ASSEMBLY
Convection Oven
Revision 4/F3544
-43-
© Moffat Ltd, April 2005
Pos Part
No. Description
1 023242 WRAPPER
2 090414 INSULATION
3 023276 COVER
PANEL
4
023277
COVER PANEL PLATE
5 011412 MICROSWITCH
BRACKET
6 011389 MICROSWITCH
INSULATOR
7 002990 MICROSWITCH
8 003012 ACTUATOR
ROD
011410 MICROSWITCH
BUTTON (NOT ILLUSTRATED)
9 023275 VENT
TUBE
10
003016
MOTOR MOUNTING PLATE
11 013431K MOTOR
12 012782 HOSE
CONNECTOR (US/CAN ONLY)
13 011634 ELBOW
(US/CAN ONLY)
14 012781 SOLENOID
VALVE (US/CAN ONLY)
15
019208
SOLENOID MOUNTING BRACKET (US/CAN ONLY)
16 012784 SOLENOID
EXTENSION (US/CAN ONLY)
17 012785 INJECTOR
(US/CAN ONLY)
18
011404
L.H OVEN SUPPORT
19 013586 TERMINAL
BLOCK
20 002138 CABLE
CLAMP
21 002441 INSULATOR
22
018251
CABLE ENTRY CLAMP BRACKET
23 023241 BODY
24
017788
LEG - 6" (150 mm)
25 004879 FOOT
PLATE
26 017770 PHIAL
GUARD
27 004870 OVEN
INNER
28
011413
R.H OVEN SUPPORT
29
011407
SIDE INSULATION PANEL
30
013520
OVEN LIGHT ASSEMBLY
003434 SILK
GASKET
013521 LAMP
40W
003002 LIGHT
GLASS
31 013432 FAN
32 004595 FAN
BAFFLE
33 003123 BAFFLE
BRACKET
34
003113
TOP ELEMENT 208 - 220V
011604
TOP ELEMENT 230 - 240V
35
003074
BOTTOM ELEMENT 230 - 240V
003114
BOTTOM ELEMENT 208 - 220V
36 003219 ELEMENT
SUPPORT
37 023254 OVEN
RACK
38
023256
OVEN SIDE RACK - RH
39
023255
OVEN SIDE RACK - LH
40 012787 WATER
TROUGH (US/CAN ONLY)
41
004874
BOTTOM ELEMENT GUARD
42
014225
OVEN SEAL ASSEMBLY - VERTICAL
003028
VERTICAL SEAL - 455mm
43
023257
OVEN SEAL ASSEMBLY - HORIZONTAL
023278 HORIZONTAL SEAL - 584mm
44
004877
PIVOT COVER - TOP
45
023243
PIVOT SUPPORT - TOP ASSEMBLY
46 023615 TOP
TRIM
47 004875 DOOR
INNER
48 021465 HANDLE
BRACKET (HANDLE ASSEMBLY 021469)
49 021468 HANDLE
(HANDLE ASSEMBLY 021469)
Convection Oven
Revision 4/F3544
-44-
© Moffat Ltd, April 2005
50 ---------- CONTROL ASSEMBLY (SEE SECTION 11.2)
51 023616 BOTTOM
TRIM
52 013610 DOOR
BUSH (ALSO USED ON CONTROL PANEL PIVOT)
53
023245
PIVOT SUPPORT - BOTTOM ASSEMBLY
54
023263
DOOR INNER GLASS
090200
SILICON EXTRUSION - 1.90M
55
004876
DOOR GLASS CLAMP ANGLE
56
023264
DOOR OUTER GLASS
090225
SILICON EXTRUSION - 0.96M
57
024562
POWER RELAY (FROM SERIAL NUMBER 232054)
024563
POWER RELAY UPGRADE KIT (TO SERIAL NUMBER 232053)
58 004594 COUNTERWEIGHT (UK ONLY)
Convection Oven
Revision 4/F3544
-45-
© Moffat Ltd, April 2005
11.2 OVEN CONTROL PANEL ASSEMBLY
Pos Part
No. Description
1
018224
HOLD THERMOSTAT KNOB
2 018223 HOLD
THERMOSTAT
3
021538
HOLD THERMOSTAT BRACKET (AFFIX 018209 LABEL)
4
017121
THERMOSTAT 50-300 ºC
5
011760
TIMER - 1 Hr
6
011419
TIMER - 3 Hr (240V 50 Hz)
011983
TIMER - 3 Hr (240V 60 Hz)
7
024562
HOLD RELAY (FROM SERIAL NUMBER 232054)
022281
HOLD MINI-CONTACTOR (TO SERIAL NUMBER 232053)
8
021536
RELAY / CONTACTOR BRACKET
9
018789
BALL CATCH PLATE
10
011005
BALL CATCH & LOCKNUT
11
021442
TIMER MOUNTING PANEL
12 011794 BUZZER
13
021537
BUZZER MOUNTING BRACKET
14 004873 CONTROL PANEL BAKBAR °C
004872
CONTROL PANEL BLUE SEAL °C
004729
CONTROL PANEL MOFFAT °F
15 013610 DOOR
BUSH
17
021474
LIGHT SWITCH
18
020823
THERMOSTAT / TIMER KNOBS
19 020849 INDICATOR
LIGHT
20
021476
ROAST ‘N’ HOLD SWITCH
21
021473
POWER SWITCH
Convection Oven
Revision 4/F3544
-46-
© Moffat Ltd, April 2005
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 8/142 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
Free Call 1800 337 963
Fax (03) 9518 3895
QUEENSLAND - MOFFAT PTY
30 Prosperity Place
Geebung QLD 4034
Spare Parts
Free Call 1800 337 963
Fax (03) 9518 3895
SOUTH AUSTRALIA - MOFFAT PTY
Suite 8/71 Fullarton Rd
Kent Town SA 5067
Spare Parts
Tel (08) 8431 0522
Free Call 1800 337 963
WESTERN AUSTRALIA - MOFFAT PTY
PO Box 689
Joondalup Business Centre WA 6027
Spare Parts
Tel (08) 9305 8855
Free Call 1800 337 963
NATIONAL COVERAGE FOR 24 HOUR SERVICE OR MAINTENANCE DIAL
FREE CALL 1800 622 216 (AUSTRALIA ONLY)
CANADA
Lessard Agencies Limited
PO Box 97
Stn “D”
Toronto, ONT M6P 3J5
Tel (416) 766 2764
Fax (416) 760 0394
Free Call 1 888 537 7273
NEW ZEALAND
CHRISTCHURCH - MOFFAT LTD
16 Osborne St
PO Box 10-001
Christchurch
Spare Parts
Free Call 0800 Moffat
(0800 663 328)
Tel (03) 389 1007
Fax (03) 389 1276
AUCKLAND - MOFFAT LTD
4 Waipuna Road
Mt Wellington
Auckland
Spare Parts
Convection Oven
Revision 4/F3544
Tel (09) 574 3150
Fax (09) 574 3159
Free Call 0800 Moffat
(0800 663 328)
-47-
© Moffat Ltd, April 2005
UNITED KINGDOM
BLUESEAL
LTD
Units 6-7 Mount St
Business Park
Birmingham
B7 5QU
England
Tel 0121-327 5575
Fax 0121-327 9711
UNITED STATES OF AMERICA
MOFFAT
3765
INC.
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)
Convection Oven
Revision 4/F3544
-48-
© Moffat Ltd, April 2005
APPENDIX A. POWER RELAY UPGRADE KIT
Kit (part no. 024563) includes:
1
x Power
relay
3
2
x
Screw - 8 x /8 truss
1
x
160mm black wire
1
x
180mm red wire
1
x
950mm red wire
1
x 1050mm
red wire
Assembly Instructions:
(THE ELECTRICAL SUPPLY MUST BE DISCONNECTED)
1) Remove the rear service panel.
2) Mark and drill 2x ø3.5mm holes as per figure 1.
3) Mount relay to holes with 2 screws provided.
( NOTE: Terminals on relay must face
upwards).
4) Connect 160mm black wire to vacant neutral
(L2) terminal on terminal block and to terminal B
on relay.
64
5) Connect short (180mm) red wire to vacant
phase (L1) terminal on terminal block and to
terminal 7 on relay.
6) Connect long thick red wire (950mm) to power
relay terminal 4 and remaining long thin wire
(1050mm) to relay terminal A. Feed these
wires through the plastic bush in the rear of the
oven and into the control cavity.
85
185
Figure 1
7) Loosen screws and open the control panel.
8) Remove and discard wire from terminal 2 on the
power switch to terminal 21 on the mini
contactor inside the control panel.
Locate end of thick red wire previously fed into
control cavity and connect to terminal 21 of the
contactor.
Power switch
9) Locate long thin red wire and connect to
terminal 2 on the power switch.
10) Close and fasten control panel taking care not
to trap any wires.
11) Replace and fasten rear service panel.
Mini-contactor
Figure 2
Convection Oven
Revision 4/F3544
-49-
© Moffat Ltd, April 2005
Circuit schematic (new wires shown in bold):
Figure 3
Utensils Direct
0845 873 6600
www.utensilsdirect.co.uk
Convection Oven
Revision 4/F3544
-50-
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