Fisher & Paykel GC912 User manual

Gas Cooktops
USA, Canada
Models
GC912 and GC913 series
599328A

599328A April 2006
3
Manual 599328A Reprint: April 2006
The specifications and servicing procedures outlined in this manual are subject to change
without notice.
The latest version is indicated by the reprint date and letter and replaces any earlier
editions.

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Contents
Models covered by this manual......................................................................................................................5
Service assistance............................................................................................................................................5
1. Service requirements ..............................................................................................................................6
1.1 HEALTH AND SAFETY ...............................................................................................................................6
1.2 GENERAL WARNING..................................................................................................................................6
2. Specifications...........................................................................................................................................7
2.1 PRODUCT OVERVIEW................................................................................................................................7
2.2 MODEL NUMBER.......................................................................................................................................7
2.3 SERIAL NUMBER.......................................................................................................................................8
2.4 ELECTRICAL.............................................................................................................................................8
3. Installation requirements, burner ratings and orifice sizes, gas conversion and low flame setting
adjustment.........................................................................................................................................................8
4. Wiring diagrams.......................................................................................................................................9
4.1 GC912
COOKTOPS..................................................................................................................................9
4.2 GC913
COOKTOP....................................................................................................................................9
5. Servicing Procedures........................................................................................................................... 10
5.1 TO REMOVE THE HOB TOP AND TRAY .......................................................................................................10
5.2 TO REMOVE THE COOKTOP FROM THE BENCH/COUNTERTOP.....................................................................10
5.3 TO REMOVE AN ELECTRODE....................................................................................................................10
5.4 TO REMOVE THE IGNITION BOX................................................................................................................10
5.5 TO REMOVE THE MICROSWITCH ASSEMBLY ..............................................................................................11
5.6 TO REMOVE A GAS VALVE .......................................................................................................................11
5.7 TO SERVICE A GAS VALVE.......................................................................................................................11
6. Fault finding checksheet...................................................................................................................... 12
7. Fault finding flowcharts ....................................................................................................................... 13

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Models covered by this manual
MODEL PRODUCT CODE
GC912 88441
GC912M 88442
GC913 88452-A
Service assistance
Fisher & Paykel Appliances inc.
5900 Skylab Road
Huntington Beach
CA 92647
USA
Tel: [phone]
Fax: [phone]
Email: [email protected]

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1. Service requirements
1.1 Health and Safety
When servicing the cooktop, health and safety issues must be considered at all times.
Specific
safety issues are listed below with their appropriate icon. They are illustrated in the service
procedures to remind service people of the issues.
Electrical safety. Isolate the cooktop from the electrical supply
before servicing. Failure to do so could result in an electric shock.
Gas leak hazard. Isolate the cooktop from the gas supply if
necessary before servicing and leak test after all gas related repairs.
Sharp metal edges. Take care and use appropriate protection when
handling sharp metal edges to avoid laceration.
Gas fittings are torque sensitive, over tightening could damage them
and cause a gas leak.
Heat hazard. Ensure wiring is correctly routed away from potentially
hot metal parts.
Ensure the work area is clean and tidy at all times to avoid a hazard
while service work is being carried out. Clean the cooktop and tidy
the work area after service work is completed.
1.2 General warning
Only qualified gas and electrical service people should service this product.

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2. Specifications
2.1 Product overview
Model GC912 GC912M GC913
Supply voltage 110/120 110/120 110/120
Flame failure auto reignition 
Brushed stainless steel panels 
Iridium stainless steel panels 
Wok burner 14000BTU/h 20000BTU/h 20000BTU/h
Indicator neons, innovalves 
2.2 Model number
Note: A model and serial number label is located on the underside of the cooktop and on
the cover of the use and care guide supplied with the product. An extra label is provided
for the installer to place in a convenient location.
The model number contains information as shown in the following example:
GC 91 2 M
Additional information (M – Iridium)
Series
Product length (eg. 91 cm)
Product type (eg. Gas cooktop)

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2.3 Serial number
The serial number consists of three letters and six digits and contains the information
shown in the following example:
BR M123456
Sequential serial number
Manufacturing plant code
FISHERPAYKUL code indicating month of
manufacture
CUMBERLAND code indicating year of manufacture
Cumberland code
Letter C U M B E R L A N D
Year 1 2 3 4 5 6 7 8 9 0
Fisherpaykul code
Letter F I S H E R P A Y K U L
Month 1 2 3 4 5 6 7 8 9 10 11 12
Manufacturing plant code
A Laundry – Cleveland, Australia
F Refrigeration – Auckland, New Zealand
M Range and Dishwasher – Dunedin, New Zealand
N Laundry – Auckland, New Zealand
Q Refrigeration – Cleveland, Australia
In the example above, the appliance was manufactured in the sixth month (June) of the
fourth year (2004) at the Range and Dishwasher plant in Dunedin, New Zealand.
2.4 Electrical
Mains powered ignition system – 110/120V 0.6VA
3. Installation requirements, burner ratings and orifice
sizes, gas conversion and low flame setting
adjustment.
Refer to the installation instructions supplied with the product, or available on the Fisher &
Paykel website – http://usa.fisherpaykel.com

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4. Wiring diagrams
4.1 GC912 cooktops
4.2 GC913 cooktop

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5. Servicing Procedures
Refer to the Service requirements before servicing, Section 1 page 6
5.1 To remove the hob top and tray
1. Lift off the trivets and burner components.
2. Remove the knobs.
3. Remove the screws securing each burner to the hob tray.
 To prevent damaging the screw head use a No. 1 Phillip’s head screwdriver.
4. Lift the hob tray out of the hob top.
5. Remove the hob top.
5.2 To remove the cooktop from the bench/countertop
Note: It is easier to service the internal components by removing the hob top and tray
rather than removing the product from the bench.
1. Unplug the electrical supply lead.
2. Turn off the gas supply and disconnect the inlet gas pipe.
3. Loosen the cooktop clamping brackets.
4. Lift the cooktop out of the bench.
5.3 To remove an electrode
1. Remove the hob top and tray.
2. Remove the electrode locating clip on the burner bowl.
3. Unplug the electrode lead from the ignition box.
5.4 To remove the ignition box
1. Remove the hob top and tray.
2. Remove the neon mounting bracket by pulling it upward (GC913 only).
3. Unplug the electrode leads and the multi-way plug from the ignition box.
4. Lift off the ignition box attached to the basepan by double-sided tape.
Note: The electrode leads must be plugged into the correct terminals on the ignition box.
Terminal numbers on the ignition box correspond as follows:
S1 Front left burner
S2 Front right burner
S3 Middle burner
S4 Rear left burner
S5 Rear right burner

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5.5 To remove the microswitch assembly
1. Remove the hob top and tray.
2. Remove the neon mounting bracket by pulling it upward (GC913 only).
3. Remove the microswitch assembly wires connected to each neon (GC913 only).
4. Lift the switches off the gas valves.
5. Disconnect the active and neutral wires from the terminal block.
6. Disconnect the earth from the terminal block or basepan and unplug from the ignition
box.
5.6 To remove a gas valve
1. Remove the cooktop from the benchtop.
2. Remove the hob top and tray.
3. Remove the microswitch assembly.
4. Disconnect all the aluminium tubes from the gas valve outlets.
5. Remove the screws securing the manifold to the basepan.
6. Remove the gas valve from the manifold.
Note: Leak test all gas connections. Block each injector orifice in turn and open the valve
to leak test the gas connections beyond the valve.
 Check and adjust the low flame setting.
5.7 To service a gas valve
1. Remove the hob top and tray.
2. Remove the microswitch assembly.
3. Remove the screws on the top of the gas valve.
4. Gently lift out the valve cone and clean with solvent.
5. Regrease the cone with high temperature grease.
6. Refit and rotate the cone.
7. Lift out the cone, remove any excess grease and check the holes in the cone and the
valve body are not blocked.
8. Reassemble the valve assembly.
9. Open and close the valve several times.
Check the valve for leaks.

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6. Fault finding checksheet
Burner not lighting
– no spark Burner not lighting – is sparking
On all burners? On all burners?
Fault finding
912/913 series Y N Y N
Burner lights but
doesn’t stop
sparking
Flame doesn’t stay
lit or is yellow or
distorted
Are the burner components clean and dry, not damaged and
correctly fitted ? ? ????
Is the electrode clean and dry ???
Is the electrode located correctly ???
Is the electrode damaged, is the harness shorting inside the
basepan ???
Is the electrode connected to the correct ignition box terminal ???
Is the microswitch loom correctly located and continuity ok ??
Is the gas pressure correct ???
Is the low flame setting correct ??
Is the cooktop set for the correct gas type, are the correct jets
fitted or is the jet blocked
????
Is the power supply correct (voltage and polarity), is the cooktop
properly earthed ??
Is there a draft or air flow affecting the flame ??
? - Check

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7. Fault finding flowcharts
YES
Check the low
flame setting
YES
NO
NO*
These repairs require gas
qualifications.
Does the
burner light
with a match?
Check the electrode:
is located correctly
is clean and dry
is not damaged.
Check the:
the burner components are assembled
correctly, are clean and dry and are not distorted.
gas jet is the correct size for the gas type and
is not blocked
cooktop doesn’t require high altitude jets.
Check the:
gas pressure
gas valve for grease blockage
gas pipes/connections for gas leak
or blockage.
Is the flame
behaving
normally?
Replace the:
electrode
burner cap and spreader.
YES
Burner not lighting
NO
NO
Is the
electrode
sparking?
A
re the other
electrodes
sparking?
Does the
electrode
spark now?
YES
Ensure the burner components are assembled
correctly, are clean and dry and not damaged.
Check the electrode:
is clean and dry
is not damaged
is not shorting inside the basepan area
lead is connected tightly at the ignition box.
Swap the electrode lead at the ignition box with one
that is working ok.
NO
Replace the ignition box
Replace the electrode
Check the:

microswitch loom connections at the
ignition box
continuity, mounting and operation
of the microswitch.
Check the:
power supply up to the ignition
box
connections at the ignition box
continuity of the common wire in
the microswitch loom.
Light another burner
Does it
function ok?
NOYES
NOTES
*Indicates there is not enough or too much gas flow at the burner.

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These repairs
require gas
qualifications.
NO
YES
YESNO NO
YES *
Sparking continuously
Is a burner in
use?
Does the burner
light and
continue
s
p
arkin
g
?
Refer to Burner not lighting flowchart
Check for:
shorted ignition switches in the loom
incorrect polarity at the power outlet.
Check the:
electrode/burners are clean and dry
low flame setting is correctly set
**electrode leads are firmly connected to their correct location at the
ignition box and are not damaged
earth to the cooktop and earthing connections in the cooktop are ok.
NOTES
*Indicates the flame isn’t being sensed.
** The correct electrode positions at the ignition box -
Is the flame
behaving
normally?
Check the:
burner components are assembled correctly, are clean and dry
and not distorted
gas jet is the correct size for the gas type and is not blocked
low flame setting is correctly set
cooktop doesn’t require high altitude jets.
Replace the ignition box
Check the gas pressure
Terminal Burner
S1 Front left
S2 Front right
S3 Middle
S4 Rear left
S5 Rear right