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Mend Valiant Heating Fault Finding Gas

INTERMITTENT FAULT?

We have a valiant boiler approx 15yrs old,runs like clockwork and then for some reason it will fire up and go out after a few minutes or it will fire up but not lit at all,if we run the hot tap it will come on and run fine,this is an intermittent prblem,any ideas????

DK
January 2010
ValiantBathroom Appliances, Baths and ShowersHeating Fault Finding Gas
Is this a big job/expensive

DK
January 2010
Most likely is a sticking servo valve spindle.

Henry
January 2010

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Topic

Valiant Boiler Intermittent Fault - Help!