NO
YES
YES
YES
YES
YES
YES
YES
1 3
16 Trouble shooting checklist
Ensure Gas and Electricity
supplies are enabled.
If heater still fails to operate
normally please contact
A m b i - R a d ’s
Service Department.
C h e c k
1. Wiring harness and plugs.
2. Operation of vacuum switch.
3. Replace fan.
C h e c k
1. Burner controller.
2. Wiring harness.
3. Orange neon.
C h e c k
1. Integrity of spark leads.
2. Integrity of electrode
assembly and spark gap.
3. Burner controller.
C h e c k
1. Burner inlet pressure.
2. Burner nozzle pressure.
3. Check live and neutral polarity
and a good earth is present.
C h e c k
1. Check vacuum switch tubes.
2. Check emitter tubes, air inlet
and the flue is not
o b s t r u c t e d .
3. Check operation of vacuum
s w i t c h .
4. Replace fan.
C h e c k
1. Burner control.
2. Replace gas valve.
C h e c k
1. Burner controller.
2. Red neon.
C h e c k
1. Operation of any thermostat.
2. Check any external fuses.
Does the red
neon illuminate.
Is there power on
the burner?
Does the vacuum
switch ‘pull in’?
Does the gas
valve open?
Does the fan
r u n ?
Is the burner
s p a r k i n g ?
Does the amber
light illuminate after
10s purge?
Does the amber
light illuminate for
10s then go out?
YES
NO
NO
NO
NO
NO
NO
NO
