Trouble Shooting - Cannon FITZFS-SDSEB-NG User Instructions

Trouble-shooting. (Do not modify this appliance).
To check the operation of the electronic (module) controller (Type 537 ABC) you will require a digital
multimeter with the functions to measure AC/DC voltage, continuity, resistance and micro-amps.
It is critical that the appliance is earthed and that the active and neutrals are not reversed.
Item No Check
1. No ignition when appliance
is turned on.
2. Power present but appliance
not operating.
3. After resetting the module
and appliance is still not
operating.
4. If the fuse is O.K. and still
appliance not operating
5. Confirm spark is produced
when heater is turned on.
6. If no spark being produced
7. Spark is being produced
but not at burner.
8. Sparks, ignites on low flame
then extinguishes after 10
seconds. Continues to spark
during flame presence.
Action
• Check 240 volts power to heater in incoming plug
connector.
• If there is power to the brown wire in the 8 way
switch connector the module may be in lockout
mode. To reset the module turn off the power supply
for 10 seconds and then turn the power on again.
• Check the internal 2-A fuse in the loom.
• Check other connections are in place.
• If the last checks are correct the ignition electrode
should spark at the same time as the gas control
solenoid valves open. At this point the spark
electrode will activate for up to 10 seconds maxi
mum until the flame has been established. Terminal
14 (white wire into the 8 way switch connector)
will be energised as soon as the flame has been
sensed.
• A blue spark can be seen when the heater ignition
process starts. Ensure spark is present between
electrode and burner.
• Check that spark lead is connected into module.
• Check the continuity of the HT cable.
• Check that there is no short circuit to earth and
spark gap is correct. (Refer figure 28). A positive
check is to use a jumper wire and connect one end
of the earth and hold the other end with insulated
pliers 4mm from the spark generator on the module.
If there is no spark to earth then change the module.
• Listen for cracking sound. The spark is misdirected.
Check the spark ceramic insulator for signs of
cracks.
• Check that the wall socket to the appliance has
correct polarity. Do not use an extension cord. Check
polarity in the electrical supply lead to appliance.
• Check that the sense electrode is in the flame.
• Check that appliance is earthed correctly. A check
between the earth pin on the plug and an unpainted
part of the appliance should see a resistance of
0.1 ohms.
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