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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
VaillantHeating, Home Heating SystemsBoiler Works Perfectly
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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