Atmos Energy INTERCOMBI HE32 - Manual (Page 45)

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8.1 Burner does not ignite
Possible causes Remedies
8.2 Burner ignites with much noise
1. The house gas meter may be faulty.
Contact the gas company.
Inlet pressure too high.
1. Check the adjustment.
See Gas-air control.
1. Replace the ignition probe.
2. Replace the ignition unit on the gas valve.
3. Check the ignition spark gap.
Weak spark.
Yes
Gas-air mixture not adjusted properly.
Yes
No
Yes
No
1. Replace the ignition probe.
2. Check the ignition probe distance.
Incorrect ignition distance.
Yes
No
Possible causes Remedies
1. Open the gas tap.
1. Contact the gas company.
1. Replace the ignition probe.
1. Check the cabling.
2. Check the spark probe
3. Replace the ignition unit.
1. Check the adjustment,
see Gas-air control.
1. Replace the gas valve.
2. Re-adjust the gas valve,
see Gas-air control.
1. Check the wiring.
2. Check the fuse.
3. Replace the fan if necessary.
1. Clean the fan.
Gas tap is closed Yes
No
1. De-aerate the gas pipe. Air in th e gas pipe. Yes
No
Inlet pressure too low. Yes
No
No ignition
Yes
No
No spark.
Yes Ignition unit on gas unit faulty
No
Gas-air control not
Yes
adjuste d properly.
No
Fan faulty
Yes
No
Fan blockage
Yes
No
Yes
Gas valve faulty