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home Fix label Heating label_important Home Heating Systems category Vaillant

Valliant Boiler help?

Hi

I have a 3 year old Vaillant wall mounted gas boiler which works perfectly well with the front cover removed. When the cover is fitted again the boiler runs for a few minutes then cuts out again, take off cover, refire and all is ok? Grateful for any help.
Mac G, July 2009
home Fix label Heating label_important Home Heating Systems category Vaillantdone
If it's one of the condensing models (ecotec etc) then the air / gas ratio will be incorrect and need to be adjusted by a qualified engineer with a performance testing machine / telegan.

Ian, July 2009
sounds like either a fault with the flue or the venturi in the fan, best to get someone out who knows what they are doing.

steve, July 2009
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