CH Boiler won't fire up

knight1605 · Posted: Tue Sep 11, 2007 7:42 pm Post Subject: CH Boiler won't fire up

Could someone please help me. I have a glow worm boiler. The pilot light is on but when the central heating is put on constant the main burner does not fire up. Is this a simple problem to overcome?? Are there any airlocks?? All replies greatfully appreciated. Thanks in advance.

Agile · Posted: Tue Sep 11, 2007 7:48 pm Post Subject:

Glow Worm have made a lot of different boilers and each is usually different from the other models.

There are so many different things that could have failed but an airlock is not likely to be one of them.

A competent boiler engineer might be required.

Tony

Symptoms · Posted: Tue Sep 11, 2007 8:20 pm Post Subject:

Loads of reasons why the boiler is not lighting. Could be a 'sticking' gas control valve, stats turned to zero (believe it or not a common problem), zone valve malfunction (they aren't just electric water taps - they also have micro switches inside linked to the CH contol system). So unless you want to swap out lots of stuff or aren't confident about testing get a decent boiler engineer out.

penpusher · Posted: Tue Sep 11, 2007 10:04 pm Post Subject:

give us make/model of boiler and replies might be easier ie.

Is it a combi?
Does it have any markings?
rough age?
hot water ok?
any previous faults?
Are you really sure the thermostats/timer are switched on?

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