
32
6. Troubleshooting Guide.
Check:
1. Integrity of spark leads
2. Integrity of electrode
assembly & spark gap
3. Ignition controller
Ensure gas & electricity
supplies are enabled.
Does the RED
neon
illuminate?
Check:
1. Operation of any thermostat
2. Any external fuses
3. Correct voltage is selected
YES
Does the
Fan run?
Does the
amber light
illuminate after
10s purge?
If the heater still fails to
operate normally,
please contact
your local
representative.
NO
NO
Does the
vacuum switch
`pull in`?
Check:
1. Wiring harness & plugs
2. Vacuum switch operation
3. Replace fan
Is the burner
sparking?
Does the gas
valve open?
Check:
1. Ignition controller
2. Replace gas valve
Check:
1. Vacuum switch tubes
2. Emitter tubes, air inlet & vent
for obstructions
3. Operation of vacuum switch
4. Replace fan
NO
YES
Check:
1. Ignition controller
2. Wiring harness
3. Amber neon faulty
Check:
1. Burner inlet pressure
2. Burner nozzle pressure
3. Check live & neutral polarity
4. Check presence of good ground
YES
YES
NO
NO
YES
NO
YES
Does the
amber light
illuminate for 10s
then go out?
NO
YES
YES
Is there power
on the burner?
Check:
1. Ignition controller
2. Red neon faulty
YES
NO