Ambirad Vision VSX Panduan Servis & Komisioning - Halaman 11
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Halaman Cetak5. Fault Finding.
Ensure gas & electricity
supplies are enabled.
YES
Does the RED
neon
illuminate?
YES
Does the
combustion fan
run?
YES
Does the
amber light
illuminate after
10s purge?
YES
Does the
amber light
illuminate for 10s
then go out?
NO
If the heater still fails to
operate normally,
please contact
the AmbiRad
service department.
NO
Is there power
on the burner?
Check:
NO
1. Wiring harness & plugs
2. Vacuum switch operation
3. Replace fan
Does the
NO
vacuum switch
`pull in`?
YES
Is the burner
sparking?
YES
Does the gas
valve open?
YES
Check:
YES
1. Burner controller
2. Red neon faulty
Check:
1. Operation of any thermostat
NO
2. Any external fuses
3. Correct voltage is selected
Check:
1. Vacuum switch tubes
2. Emitter tubes, air inlet & flue
for obstructions
3. Operation of vacuum switch
4. Replace combustion fan
NO
Check:
1. Burner controller
2. Wiring harness
3. Amber neon faulty
YES
Check:
NO
1. Integrity of spark leads
2. Integrity of electrode
assembly & spark gap
3. Burner controller
Check:
NO
1. Burner controller
2. Replace gas valve
Check:
1. Burner inlet pressure
2. Burner nozzle pressure
3. Check live & neutral polarity
4. Check presence of good earth
11