Intergas Heating Ltd
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11.2 Other faults
11.2.1 Burner does not ignite
Possible causes: Solution:
Gas tap is closed. Open gas tap.
No
Air in the gas pipe. Remove air form gas pipe.
No
Gas supply pressure too low. Contact the gas supply company.
No
No ignition.
Replace ignition electrode.
No
No spark. Ignition unit on gas valve faulty. Check the cabling. Check the spark plug cap. Replace the ignition unit.
No
Gas/air adjustment not correctly set. Check adjustment. See gas/air adjustment.
No
Fan faulty.
Check the wiring. Check the fuse , if necessary, replace the fan.
No
Fan dirty. Clean the fan.
No
Gas valve faulty. Replace the gas valve. Re-adjust the gas valve, see gas/air adjustment
11.2.2 Burner ignites noisily
Possible causes: Solution:
Gas supply pressure too high. The house pressure switch may be faulty. Contact the gas company.
No
Incorrect ignition gap.
Replace the ignition pin.
Check the ignition electrode gap.
No
Gas/air adjustment not correctly set. Check the setting. See gas/air adjustment.
No
Weak spark.
Check the ignition gap.
Replace the ignition electrode.
Replace the ignition unit on the gas valve.
11.2.3 Burner resonating
Possible causes: Solution:
Gas supply pressure too low. The house pressure switch may be faulty. Contact the gas company.
No
Recirculation of combustion gasses. Check the gas flue an the air supply.
No
Gas/air adjustment not correctly set.
Check the setting, see gas/air adjustment.
Pin must touch test tool Pin must not touch test tool
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