La Cornue CornuFe Operating instructions

CornuFé 44 Dual Fuel Range
Service Instructions
F107150-01
This book contains many important safety messages.
Always read and obey all safety messages.
Installer:Leave these instructions with the range
Important - Save the installation instructions for the local electrical inspector’s use.

WARNING
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or death.
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other range.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any range.
Do not touch any electrical switch
Do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas
supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
WARNING
The anti-tip device supplied with this range must be correctly fitted when the range is installed.
This will reduce risk of tipping of the range from abnormal usage or by excessive loading of the
oven door
WARNING
• ALL RANGES CAN TIP
• INJURY TO PERSONS COULD RESULT
• INSTALL ANTI-TIP BRACKET PACKED WITH RANGE
• SEE INSTALLATION INSTRUCTIONS

3
SERVICING  WARNING  WORK SAFELY
Where necessary disconnect from electricity and gas before starting.
Check range is safe when you have finished.
Sections
Diagnostics 5
Servicing Section 12
Schematic diagram of the Range 31
Technical Data 32

4
SERVICING  WARNING  WORK SAFELY
Where necessary disconnect from electricity and gas before starting.
Check range is safe when you have finished.
Servicing Notes
When servicing or replacing gas carrying components disconnect from gas before commencing operation and
check range is gas sound after completion. When checking for gas leaks use a liquid leak detector at all joints and
connections to check for leaks in the system. Use a product specifically manufactured for leak detection. Leak
testing of the range shall be conducted in accordance to the manufacturer’s instructions.
CAUTION: DO NOT USE A FLAME TO CHECK FOR GAS LEAKS.
When using test pressures greater than ½ psig (3.5kPa) to pressure test the gas supply system of the residence,
disconnect the range and individual shut-off valve from the gas supply piping. When using test pressures of ½ psig
(3.5kPa) or less to test the gas supply system, simply isolate the range from the gas supply system by closing the
individual shut-off valve.
Do not use re-conditioned or unauthorized gas controls.
Disconnect from electricity supply before commencing servicing, particularly before removing any of the
following: control panel, side panels, cooktop tray, or any of the electrical components or cover boxes. Before
electrical reconnection make sure the range is electrically safe.
Note – If not specifically stated, references to left hand and right hand oven are as viewed from the front of the
range.

5
SERVICING  WARNING  WORK SAFELY
Where necessary disconnect from electricity and gas before starting.
Check range is safe when you have finished.
Checking the Multifunction Oven 6
Checking the Convection Oven 8
Checking the Cooktop 10
Diagnostics

6
Check Result Possible Cause
Open the oven door and turn on the oven light Light does not work
Light bulb failed (most likely cause)
No power to range
Fault in power supply to switch
Faulty switch
Action
Remove the light bulb (see‘Servicing Procedures’). Check the bulb resistance with a meter and replace it if
necessary.
If the bulb is OK then move the range forward (see ‘Servicing Procedures’) and remove the rear cover.
With the meter check the continuity of the wiring to the bulb and the action of the switch. Replace wiring or switch
as necessary.
Check Result Possible Cause
Turn the function control to the Defrost setting and
check that the oven fan starts to spin. Fan does not spin
Fault in power supply to switch
Faulty switch
Fault in power supply to fan
Fan motor faulty
Fan blades impeded
Action
Remove the oven inner back and check that the fan is not impeded.
If not then move the range forward (see ‘Servicing Procedures’) and remove the rear cover.
With the meter check the continuity of the wiring to the fan and the action of the switch. Replace wiring, switch or
fan as necessary.
Check Result Possible Cause
Remove the oven racks. Turn the oven temperature
control to 400F and turn the function control to each
setting in turn and check that the elements start to
heat up. See the chart opposite.
You should be able to feel the heat from the element
after few moments by holding your hand close to the
element (DON’T TOUCH THE ELEMENTS!).
The bottom element may take slightly longer to heat
up.
Turn the controls off when you have finished.
One element does
not heat up.
Burnt out element (most likely cause)
Faulty switch
Fault in power supply to element
No element heats
up
Faulty oven thermostat.(most likely cause)
Faulty switch
Fault in power supply to elements
Action
One element not working
Remove the element and check it with a meter. Replace with a new element if
necessary.
If the element is OK then move the range forward and check the continuity of the
wiring and the function switch
No element working
Remove the range
cooktop and check the
thermostat and fuction
switch
Checking the Multifunction Oven

7
Checking the Multifunction Oven

8
Check Result Possible Cause
Open the oven door and turn on the oven light Light does not work
Light bulb failed (most likely cause)
No power to range
Fault in power supply to switch
Faulty switch
Action
Remove the light bulb (see‘Servicing Procedures’). Check the bulb resistance with a meter and replace it if
necessary.
If the bulb is OK then move the range forward (see ‘Servicing Procedures’) and remove the rear cover.
With the meter check the continuity of the wiring to the bulb and the action of the switch. Replace wiring or switch
as necessary.
Check Result Possible Cause
Remove the oven racks. Turn the oven temperature
control to 400F and check that the element start to
heat up.
You should be able to feel the heat from the element
after few moments by holding your hand close to the
openings at the top or bottom of the oven inner back.
(DON’T TOUCH THE ELEMENT!).
Turn the controls off when you have finished.
The element does
not heat up.
Burnt out element (most likely cause)
Faulty switch
Fault in power supply to element
Action
Remove the element and check it with a meter. Replace with a new element if necessary.
If the element is OK then move the range forward and check the continuity of the wiring and the thermostat.
Checking the Convection Oven

9
Checking the Convection Oven

10
Checking the Cooktop
Range Maintop
Ignition
The maintop burners have spark ignition operated by a switch on each control valve. When any burner control
knob is pressed in the spark generator module produces sparks at all the burners ignition electrodes.
Problem Check
The ignition system
makes sparks but does
not light the gas
Try lighting the burner with a match.
Are the flames even around the head with a blueish color?
Check the burner head is clean and the flame ports are clear. Check that the burner head is sitting
down correctly on the burner base.
What gas is being used? The range is supplied set for Natural Gas. It must be converted before it
can be used on LP gas.
The ignition system
does not make sparks.
Use flow chart below to check out the ignition system