Technical data

45
8.2 Burner does not ignite
8.3 Burner ignites with much noise
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.
1. De-aerate the gas pipe.
No
No
No
No
No
No
No
No
Gas tap is closed
Possible causes
Inlet pressure too low.
Air in th e gas pipe.
Remedies
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No ignition
No spark.
Ignition unit on gas unit faulty
Gas-air control not
adjuste d properly.
Fan faulty
Fan blockage
Gas valve faulty
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