Cobra CT6 User manual

Revision 1
© Moffat Ltd, September 2008
Cobra Series CT6 Gas Griddle Toaster
Service Manual
Gas Griddle Toaster
Model CT6

Revision 1
© Moffat Ltd, September 2008
Cobra Series CT6 Gas Griddle Toaster
This manual is designed to take a more in depth look at the Cobra Series CT6 Gas Griddle Toaster for the
purpose of making the units 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.
MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS.
IMPORTANT:
WARNING:
ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE,
INJURY OR DEATH. READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE
INSTALLING OR SERVICING THIS APPLIANCE.

Revision 1
© Moffat Ltd, September 2008
Cobra Series CT6 Gas Griddle Toaster
Contents List
Section Page Number
1. Specifications............................................................................................. 1
2. Installation ................................................................................................ 3
3. Operation ................................................................................................... 7
4. Cleaning / Maintenance .......................................................................... 10
5. Fault Finding ............................................................................................ 13
5.1 Fault Finding Table
5.2 Fault Diagnosis
6. Service Procedures .................................................................................. 16
6.1 Access
6.2 Replacement
6.3 Adjustment / Calibration
7. Accessories .............................................................................................. 20
Conversion Kit
8. Exploded Parts Diagrams ........................................................................ 21
9. Service Contacts ...................................................................................... 24
Appendix A: Gas Type Conversion ................................................................. 26
Appendix B: Equipment Design Changes....................................................... 30
Contents

Revision 1
© Moffat Ltd, September 2008
Cobra Series CT6 Gas Griddle Toaster

© Moffat Ltd, September 2008
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1
Specifications
Revision 1
Cobra Series CT6 Gas Griddle Toaster
Model Numbers Covered in this Specification
CT6 Gas Griddle Toaster
External Dimensions
Front Side
Plan

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Specifications
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Cobra Series CT6 Gas Griddle Toaster
Natural Gas (G20) Propane (G31)
Main Burners 2.10mm 1.30mm
Pilot Burners 0.35mm 0.23mm
Town Gas
3.80mm
0.60mm
Injector Sizes
Width 475mm
Depth 570mm
Height 190mm
Griddle Toaster Internal Dimensions
Gas Supply (Non-UK Models)
Toaster Rack Size 472mm x 430mm
Number of Racks Supplied 1
Griddle Toaster Racks
CT6 (Net Weight) 120 kg
Weight
Natural Gas (G20) Propane (G31)
Heat Input (nett) Nominal 11.0 kW 11.0 kW
Reduced 6.0 kW 5.6 kW
Gas Rate (nett) Nominal 1.16 m3/hr 0.85 kg/hr
Reduced 0.63 m3/hr 0.44 kg/hr
Supply Pressure 20 mbar 37 mbar
Burner Operating Pressure 10 mbar (*) 26 mbar (*)
1/2” BSP MaleGas Connection
Gas Supply (UK Models)
Natural Gas LP Gas / Butane Town Gas
42 MJ/hr 42 MJ/hr 42 MJ/hr
(39,800 Btu/hr) (39,800 Btu/hr) (39,800 Btu/hr)
Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa 0.75 - 1.50 kPa
(4.5” - 13.5” w.c.) (11” - 18” w.c.) (3” - 6” w.c.)
Burner Operating
Pressure
1.00 kPa (*) 2.50 kPa (*) 0.63 kPa (*)
(4.0” w.c.) (10.0” w.c.) (2.5” w.c.)
Gas Connection ½” BSP Male
Input Rating
(N.H.G.C.)

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Installation
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Cobra Series CT6 Gas Griddle Toaster
Installation Requirements
NOTE:
• It is most important that this appliance is installed correctly and that operation is
correct before use. Installation shall comply with local electrical, gas, health and
safety requirements.
• This appliance shall be installed with sufficient ventilation to prevent the occurrence
of unacceptable concentrations of health harmful substances in the room, the
appliance is installed in.
Cobra Griddle Toasters are designed to provide years of satisfactory service and correct installation is essential to
achieve the best performance, efficiency and trouble-free operation.
This appliance must be installed in accordance with National installation codes and in addition, in
accordance with relevant National / Local codes covering gas and fire safety.
Australia: - AS5601 - Gas Installations.
New Zealand: - NZS5261 - Gas Installation.
United Kingdom: - Gas Safety (Installation & Use) Regulations 1998.
- BS6173 - Installation of Catering Appliances.
- BS5440 - 1 & 2 Installation Flueing & Ventilation.
Ireland: - IS 820 - Non Domestic Gas Installations.
Installations must be carried out by qualified service persons only. Failure to install equipment to relevant codes
and manufacturers specifications shown in this section will void the warranty.
Components having adjustments protected (e.g. paint sealed) by the manufacturer, are only allowed to be
adjusted by a qualified service person. They are not to be adjusted by the installation person.
Unpacking
• Remove all packaging and transit protection from the appliance including all protective plastic coating
from the exterior stainless steel panels.
• Check equipment and parts for damage. Report any damage immediately to the carrier and distributor.
• Report any deficiencies to the distributor who supplied the appliance.
• Check that the available gas supply is correct to that shown on the rating plate located on the right hand
inner side panel.
• Check that the following parts have been supplied with the appliance:
Enamelled Crumb Tray 1.
Toasting Rack 1.
Toasting Rack Tray (St/Steel) 1.
Grease Drawer 1.
Adjustable Legs 4.
Gas Regulator 1.
Alternate Gas Conversion Kit 1.
Location
1. Installation must allow for a sufficient flow of fresh air for the combustion air supply.
Combustion Air Requirements:
Natural Gas (G20) 10 m³/hr.
LPG (G31) 9 m³/hr.
Town Gas 10 m³/hr.
2. Installation must include adequate ventilation means, to prevent dangerous build up of combustion
products.
3. Position the appliance in its approximate working position.
4. All air for burner combustion is supplied from underneath the appliance. The legs must always be fitted
and no obstructions placed on the underside or around the base of the appliance, as obstructions will
cause incorrect operation and / or failure of the appliance.

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Installation
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Cobra Series CT6 Gas Griddle Toaster
5. Components having adjustments protected (e.g. paint sealed) by manufacturer are only to be adjusted by
an authorised service agent. They are not to be adjusted by the installation person.
NOTE: Do not obstruct or block the appliances flue. Never directly connect a ventilation system to
the appliance flue outlet.
Clearances
NOTE: Only non-combustible materials can be used in close proximity to this appliance.
Any gas burning appliance requires adequate clearance and ventilation for optimum and trouble-free operation.
The following minimum installation clearances are to be adhered to:
Assembly
CT6 Model only
This model is delivered completely assembled. No further assembly is required. Ensure that the legs are
securely attached.
NOTE:
• This appliance is fitted with adjustable feet to enable it to be positioned securely and
level on uneven floors. This should be carried out on completion of the gas
connection. Refer to the 'Gas Connection Section'.
Gas Connection
NOTE: ALL GAS FITTING MUST ONLY BE CARRIED OUT BY A QUALIFIED SERVICE PERSON.
1. Cobra Gas Griddle Toasters do not require an electrical connection, as they function totally on the gas
supply only.
2. It is essential that the gas supply is correct for the appliance to be installed and that adequate supply
pressure and volume are available. The following checks should therefore be made before installation:
a. Gas Type the appliance has been supplied for, is shown
on coloured stickers located above the gas connection
and next to the rating plate. Check that this is correct for
the gas supply the appliance is being installed for. The
gas conversion procedure is detailed in this manual.
b. Supply Pressure required for this appliance is shown in
the 'Specifications' Section of this manual. Check the gas
supply to ensure adequate supply pressure exists.
c. Input Rate of this appliance is stated on the Rating
Plate and in the 'Specifications' section of this manual.
The input rate should be checked against the available
supply line capacity. Particular note should be taken
if the appliance is being added to an existing
installation.
Combustible Surface Non Combustible Surface
Left / Right hand side 50mm 0mm
Rear 50mm 0mm
Rating Plate
Figure 2.1a

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Installation
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Cobra Series CT6 Gas Griddle Toaster
NOTE: It is important that adequately sized piping runs directly to the connection joint on the
griddle toaster with as few tees and elbows as possible to give maximum supply
volume.
3. Fit the gas regulator supplied, into the gas supply line as close to the appliance as possible.
NOTE: The gas pressure regulator provided with this appliance is convertible between Natural Gas
and LPG and is already converted ex-factory to the gas type labelled beside the gas
connection point. The regulator outlet pressure is fixed ex-factory and it is NOT to be
adjusted.
The regulator connections are 1/2" BSP female.
The connection to the appliance is 1/2" BSP male.
(Refer to the 'Specifications' section for the gas supply location dimensions).
NOTE: A Manual Isolation Valve must be fitted to the individual appliance supply line.
1. Correctly locate the griddle toaster into its final operating position and using a spirit level, adjust the
legs so that the appliance is level and at the correct height.
2. Connect the gas supply to the appliance. A suitable jointing compound which resists the breakdown
action of LPG must be used on every gas line connection, unless compression fittings are used.
3. Check all gas connections for leakages using soapy water or other gas detecting equipment.
7. Check that the gas operating pressure is as shown in the 'Specifications' section.
NOTE: The operating pressure to be measured at the manifold test point and with all burners
operating at the 'High Flame' setting.
8. Turn off the mains gas supply and bleed the gas
out of the appliance gas lines.
9. Turn on the gas supply and the appliance.
10. Verify the operating pressure remains correct.
WARNING:
DONOT USE ANAKED FLAME TO CHECK FOR GAS LEAKAGES.
Pressure Test Point Low Fire Adjustment
Figure 2.1b

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Installation
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Cobra Series CT6 Gas Griddle Toaster
Commissioning
1. Before leaving the new installation;
a. Check the following functions in accordance with the operating instructions specified in the
'Operation' section of the User manual.
• Light the Pilot Burner.
• Light the Main Burners.
• Check the Low Fire burner operation.
• Check the High Fire burner operation.
b. Ensure that the operator has been instructed in the areas of correct lighting, operation, and
shutdown procedure for the appliance.
2. The User manual must be kept by the owner for future reference, and a record of
Date of
Purchase,
Date of Installation and Serial Number of Appliance recorded and kept with the
manual. (These details can be found on the Rating Plate attached to the R/H side panel
(refer to the 'Gas Connection' section).
NOTE: If for some reason it is not possible to get the appliance to operate correctly, shut off
the gas supply and contact the supplier of this appliance.

3
Operation
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Cobra Series CT6 Gas Griddle Toaster
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
Piezo Igniter
Gas Control Knobs
OFF Position
PILOT Burner
HIGH Flame
LOW Flame
Piezo Igniters
Ignites the Pilot Burners.
Lighting the Pilot Burners
1. Depress the gas control knob and rotate
anti-clockwise to the ‘PILOT’ position.
2. With the control knob depressed, press the
piezo ignition button on the front control
panel adjacent to the gas control knob until
the pilot burner ignites. Pilot ignition can be
viewed through openings in the control
panel.
3. Hold in the gas control knob for
approximately 10 seconds, then release.
The pilot burner should remain alight. If not
repeat Items 1 to 3.
4. Repeat Items 1 to 3 to light the second pilot
burner.
5. ‘FULL’ flame can now be achieved by
rotating the gas control knob anti-clockwise
to the first stop.
6. ‘LOW’ flame can be achieved by depressing
and rotating the gas control knob fully anti-
clockwise.
Using the Griddle
1. Light the pilot burners as shown opposite.
2. Turn the gas controls to the ‘FULL’ flame
position and allow the griddle plate to
preheat for 10 minutes if starting from a
cold start.
3. Place the product to be cooked onto the
griddle plate.
4. For intermediate heat, position the gas
control knob between the ‘HIGH’ and ‘LOW’
positions to achieve the desired heat.
5. During idle periods, the burners can be
turned down to maintain an appropriate
griddle plate temperature or the gas controls
can be set to the ‘PILOT’ position as
required.
Figure 3.1a

3
Operation
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Cobra Series CT6 Gas Griddle Toaster
Safety System
The purpose of the safety system is to shut off the
flow of gas if the pilot flame goes out. It
comprises, the flame itself, the thermocouple, and
the flame failure gas valve.
The pilot flame is lit by holding in the gas control
knob, which in turn temporarily pushes the plunger
inside the safety valve open and allows gas to flow
through.
Once the burner is lit, the thermocouple will begin
to generate millivolts (after about 10 to 30 seconds
of being heated) and will energize the electro-
magnet inside the gas valve.
Once energized the electromagnet holds the
plunger inside the gas valve in the open position.
The plunger has to have been pushed all the way
in for the electromagnet to be able to hold it in
place.
If the burner flame goes out for some reason, the
thermocouple will cool after about 10 to 30
seconds and stop generating millivolts. The
electromagnet will then de-energize, and the
plunger will snap shut, cutting off the flow of gas.
Detail of each component in the safety system is
explained below.
Thermocouple
The thermocouple is a device that generates
electricity when heat is applied to the tip.
The tip of the thermocouple is located in the pilot
burner flame, and the nut at the other end of the
thermocouple screws into the back of the gas
valve.
Inside the copper tubing is a wire which is joined at
the tip but insulated from the rest of the tubing.
These two parts (the copper tubing and wire) make
up the "wiring" for an electrical circuit. When these
two dissimilar metals, wire and tip, are heated an
electrical voltage is produced. This type of
thermocouple generates between 7 and 30
millivolts when heated in the pilot flame.
Using the Toaster
1. Light the pilot burners as shown above.
2. If starting from cold, set the burners to the
‘FULL’ flame position and allow 5 minutes
preheat before commencing toasting.
3. Adjust the rack position to the desired
height.
4. Place the product on the rack to toast.
5. Best toasting results are achieved using the
shaded area of the toast rack as per the
diagram below.
6. With the main burners alight, the individually
controlled burners can be operated to suit
food quantity requirements.
7. Each burner is operated by an ‘OFF’ /
‘PILOT’ / ‘HIGH’ / ‘LOW’ gas control. The
‘HIGH’ position is recommended for most
grilling, cheese melting functions and the
‘LOW’ position for a reduced heat setting.
Optimum
Toasting Area
3.2 Explanation of the Control
System
Figure 3.2a
Insulator Nut Conductor Tip
Internal
Wire
Figure 3.1b

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Operation
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Cobra Series CT6 Gas Griddle Toaster
Millivolts are provided to the electromagnet by the
thermocouple (not shown) which generates
millivolts when heated. The thermocouple screws
into a fitting at the back of the gas valve to make
an electric connection.
By pressing in the gas control knob, the plunger
can be temporarily held open while lighting.
There are two reasons for this;-
a. Gas has to flow through the safety valve to
make it possible to light the pilot burner.
b. The plunger has to be pushed all the way in for
the electromagnet to hold it in. i.e. The
electromagnet is strong enough to hold the
plunger in once there, but is not strong enough
to pull it in by itself.
Sometimes a problem with the flame not staying lit
after releasing the button can be attributed to not
pushing the plunger all the way in.
Electromagnetic Flame Failure Gas Valve
The purpose of the safety valve is to shut off the
flow of gas if the pilot flame goes out.
Inside the body of the gas valve is an
electromagnet connected to a spring loaded
plunger. When the electromagnet is energized, it
holds the plunger in, allowing gas to flow through
the valve. When the electromagnet is
de-energized, the plunger snaps to the closed
position, stopping the flow of gas.
Figure 3.2b
Thermocouple
Gas flow
Electromagnet
Plunger
Shaft
Knob
Gas flow Plunger

4
Cleaning / Maintenance
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Cobra Series CT6 Gas Griddle Toaster
General
• To achieve the best results cleaning must be
regular and thorough and all controls and
mechanical parts checked and adjusted
periodically by a qualified service person. If
any small faults occur, have them attended to
promptly.
• Don't wait until they cause a complete
breakdown. It is recommended that the
appliance is serviced every 6 months.
• Clean the griddle toaster regularly. A clean
appliance looks better, will last longer and will
perform better. Carbonised grease on the
surface or on the griddle plate will hinder the
transfer of heat from the cooking surface to the
food. This will result in loss of cooking
efficiency.
DO NOT use water on the griddle plate while
this item is still hot as warping and cracking
may occur. Allow the griddle plate to cool
down before cleaning.
NOTE:
• DO NOT use abrasive detergents, strong
solvents or caustic detergents as they
could corrode or damage the griddle
toaster.
• In order to prevent the forming of rust on
the griddle plate (Steel Plate), ensure that
any detergent or cleaning material has
been completely removed after each
cleaning. The appliance should be
switched on briefly to ensure the
griddle plate becomes dry. Oil or grease
should be spread over the griddle surface
in order to form a thin protective greasy
film.
To keep your griddle toaster clean and operating at
peak efficiency, follow the procedures shown:-
C AUTION :
Always turn off the gas supply at the
main gas supply before cleaning.
This appliance is not water proof. Do
not use water jet spray to clean
interior or exterior of this appliance.
After Each Use
1. Clean the griddle with a scraper tool to
remove any food debris.
2. Always ensure that the scraper tool blades
are changed regularly to ensure that the
scraper tool works efficiently and prevents
damage to the griddle plate surface.
Daily Cleaning
1. The crumb tray / grease drawer should be
checked and emptied frequently to prevent
overflow and spillage. Remove the grease
drawer while still warm so that the grease is
in a liquid state. Empty any grease from the
drawer and wash thoroughly in the same
manner as any cooking utensil.
2. Remove the crumb tray and empty out the
contents. Wash thoroughly in the same
manner as any cooking utensil.
3. Thoroughly clean the splash back, the
interior and exterior surfaces of the range
with hot water, a detergent solution and a
soft scrubbing brush.
4. Brush the griddle surface with a soft bristled
brush. Any carbon deposits should be
removed using the supplied scraper tool
followed by wiping with a cloth to prevent
accumulation of food deposits.
5. Dry the griddle toaster thoroughly with a dry
cloth and polish with a soft dry cloth.
C AUTION :
Always ensure that an even pressure
is applied over the whole surface of
the scraper tool when using on the
flat surface of the griddle toaster, to
prevent scoring of the surface.
NEVER bang the sharp edge of the
scraper tool on the flat surface of the
griddle as this will damage the finish
and invalidate the warranty.

4
Cleaning / Maintenance
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Cobra Series CT6 Gas Griddle Toaster
Weekly Cleaning
NOTE:
• If the griddle toaster usage is very high,
we recommend that the weekly cleaning
procedure is carried out on a more
frequent basis.
• Ensure that protective gloves are worn
during the cleaning process.
• DO NOT use harsh abrasive detergents,
strong solvents or caustic detergents as
they will damage the griddle toaster and
burners.
• DO NOT use water on the griddle plate
while it is still hot as warping may occur.
Allow these items to cool and remove for
cleaning.
Griddle Plate
NOTE:
In order to prevent the forming of rust on
the griddle plate, ensure that all detergent
and cleaning material has been entirely
removed after each cleaning process. The
appliance should be switched on briefly to
ensure the griddle plate becomes dry. Oil or
grease should be spread over the griddle
surface in order to form a thin protective
greasy film.
a. Remove and clean the grease collection drawer
frequently to prevent over spills.
b. Remove the crumb tray frequently to prevent
overfilling the crumb tray.
c. Clean the griddle surface thoroughly with the
supplied scraper tool or a wire brush. Use a
griddle stone or a scotch bright pad on the
griddle surface for the removal of stubborn or
accumulated carbon deposits.
d. Occasionally bleach the griddle plate with
vinegar when the plate is cold.
e. Clean with hot water, a mild detergent solution
and a scrubbing brush. Dry all components
thoroughly with a dry cloth.
f. The griddle plate should be switched on briefly
to ensure that the griddle plate becomes dry. A
thin smear of cooking oil should be spread over
the griddle plate to form a protective film.
Grilling / Toasting Area
a. Clean the grilling / toasting area with a soft
cloth, a mild detergent and a hot water
solution.
b. Baked on deposits or discolouration may require
a good quality stainless steel cleaner or
stainless steel wool. Always apply cleaner when
the appliance is cold and rub in direction of the
grain.
c. Remove the grease drawer and crumb tray,
clean with a mild anti bacterial detergent and
hot water solution using a soft bristled brush.
Dry the grease drawer and crumb tray
thoroughly with a dry cloth.
Stainless Steel Surfaces
a. Clean the exterior surfaces of the griddle
toaster with hot water, a mild detergent
solution and a soft scrubbing brush. Note that
the gas control knobs are a push fit onto the
gas control valve spindles and can be removed
to allow cleaning of the front control panel.
b. Baked on deposits or discolouration may require
a good quality stainless steel cleaner or
stainless steel wool. Always apply cleaner when
the appliance is cold and rub in the direction of
the grain.
c. To remove any discolouration, use an approved
stainless steel cleaner or stainless steel wool.
Always rub in the direction of the grain.
d. Dry all components thoroughly with a dry cloth
and polish with a soft dry cloth.

4
Cleaning / Maintenance
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Cobra Series CT6 Gas Griddle Toaster
COBRA GAS GRIDDLE TOASTER - MAINTENANCE SCHEDULE
Business Name and Address:
Date: Service Report No:
Phone: Fax:
Serial No:
Clients Order No: Serviceman:
Model: 9Remarks
1 Inspect exterior condition of the unit.
2 Check working gas pressure is correct to figures shown on rating plate. Pressure _____ kPa.
3 Check pilot flames / correct size.
4 Check that all burner ports light. Clear any blockages, if any.
5 Check burner aeration shutters are adjusted to achieve correct flame.
6a Inspect thermocouples.
6b Replace thermocouples (every 12 months).
7 Check injectors are clean and free from blockages.
8 Re-grease gas cocks.
9 Check for tightness of gas connections.
10 Check for gas leaks.
11 Check the piezo ignition of pilots functions correctly.
Service Comments:
Additional work / repairs required:
Customers approval:
Name (print): Title:
Customers signature: Date:
Suggestion: Photocopy this form and keep on file for continued use.

5
Fault Finding
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Fault Possible Cause Remedy
Pilot will not light. No gas supply.
Knob on gas control will not push
fully in.
Gas pressure too low.
Blocked pilot injector.
Faulty gas control valve.
Ensure gas is connected and
turned 'On'. (bottles not empty).
Remove obstruction.
Adjust gas supply pressure.
(Refer 'Specification' Section).
Clean or replace pilot injector.
Refer 'Service' Section 6.2.2).
Replace gas control valve.
(Refer 'Service' Section 6.2.6).
Pilot flame small. Gas pressure too low.
Pilot injector restricted.
Adjust gas supply pressure.
(Refer 'Specification' Section).
Clean or replace pilot injector.
(Refer 'Service' Section 6.2.2).
Pilot goes out when knob
released.
Releasing knob before the
thermocouple has heated.
Pilot flame too small.
(Refer Fault: Pilot Flame Small).
Thermocouple faulty.
(Refer Fault Diagnosis 5.2.1)
Electromagnet in gas valve faulty.
(Refer Fault Diagnosis 5.2.1)
Hold control in for longer (30secs),
see if pilot will stay lit.
Correct fault.
Replace thermocouple.
(Refer 'Service' Section 6.2.1).
Replace electromagnet.
(Refer 'Service' Section 6.2.6).
Pilot flame yellow / lazy. Gas pressure incorrect.
Restriction in pilot injector or
aeration shutter.
Adjust gas supply pressure.
(Refer 'Specification' Section).
Clean or replace as required.
(Refer 'Service' Section 6.2.2
and 6.2.5).
Pilot goes out when main
burner comes on.
Incorrect gas pressure.
Faulty gas control valve.
Adjust gas supply pressure.
(Refer 'Specification' Section)
Replace gas control valve.
(Refer 'Service' Section 6.2.6).
5.1 Fault Finding Table
C AUTION :
All installation and service repair work must be carried out by qualified
persons only.

5
Fault Finding
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Fault Possible Cause Remedy
Main burners will not light Incorrect supply pressure.
Small pilot flame.
(Refer Fault: Small Pilot
Flame)
Faulty thermopile.
Wrong size or blocked injectors.
Faulty gas control valve.
Check supply pressure is correct
Correct fault.
Replace thermocouple.
(Refer Service Section 6.2.1).
Replace / clean injectors.
(Refer Service Section 6.2.5).
Replace gas control valve.
(Refer Service Section 6.2.6).
Pilot goes out during operation Draught at installation (blowing
pilot out).
Gas supply—incorrect or
fluctuating pressure.
Thermocouple faulty.
(Refer Fault Diagnosis 5.2.1)
Electromagnet in gas valve faulty.
(Refer Fault Diagnosis 5.2.1)
Shield griddle toaster from
excessive breeze.
Adjust gas supply pressure.
(Refer Specifications Section).
Replace thermocouple.
(Refer Service Section 6.2.1).
Replace electromagnet.
(Refer Service Section 6.2.6).

5
Fault Finding
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5.2 Fault Diagnosis
5.2.1 Pilot Drops Out
Figure 5.2.1
Thermocouple Faulty
Check that the thermocouple connection to the gas
control is firm. Tighten if necessary.
Disconnect the thermocouple from the gas control
valve. Light the pilot, and whilst holding the
control knob in (to keep the pilot alight), measure
the voltage generated between the end of the
thermocouple and earth (eg the valve body). A
good thermocouple should generate 20-30mV. If
the thermocouple is giving less than 10mV, then it
is faulty—replace.
Thermocouple
To Gas Control
Connection.
Gas Magnet Faulty
If the thermocouple is generating a sufficient
voltage, but the pilot light still will not hold, then
the electromagnet in the rear of the gas control
may be faulty—replace. (Refer to service section
6.2.6).

6
Service Procedures
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Section Page Number
6.1 Access ...................................................................................................... 17
6.1.1 Control Panel............................................................................................................ 17
6.2 Replacement............................................................................................ 17
6.2.1 Thermocouple .......................................................................................................... 17
6.2.2 Pilot Injector............................................................................................................. 17
6.2.3 Pilot Burner .............................................................................................................. 18
6.2.4 Main Burners ............................................................................................................ 18
6.2.5 Main Burner Injectors................................................................................................ 18
6.2.6 Gas Control Valve Electro Magnet............................................................................... 18
6.3 Adjustment / Calibration......................................................................... 19
6.3.1 Gas Control Valve Re-Greasing................................................................................... 19
6.3.2 Low Fire Screw Adjustment........................................................................................ 19
WARNING:
• ENSURE THAT THE GAS SUPPLY IS SWITCHED 'OFF' BEFORE COMMENCING SERVICING.
• ALWAYS CHECK / TEST FOR GAS LEAKS ON COMPLETION OF SERVICING REPAIRS ON THE GAS SYSTEM.
C AUTION :
All installation and service repair work must be carried out by qualified
persons only.