On my Vaillant boiler, which must be an old model as it has no l.e.d. readouts etc, the flames will work for about two seconds then stops for two hours or two days... No matter what buttons I presss it will not come on unless it wants to. Once it came on in the middle of the night. Once it wouldnt work for four days. Flames won't work for heating or for hot water, except for two seconds. My children are cold and dirty. !!!Engineer says I shouldnt have bought a Vaillant and he can't fix it unless I can get him the technical help phone number. Does any one know it? Or can you diagnose problem?

Anne, November 2007

all info is at vaillant.co.uk.. the engineer is right!! no helpline, no fix...vaillant design there systems so no1 else can have a fiddle unless its somthing simple.. ur system should display fault codes on the screen of the boiler.. if not, consulting a vaillant engineer is the best option.. Vaillent helpline will charge you 50 pence a min and most probley will result in a engineer being called out.. Remember, renew your warrenty! many regards E-Wired Electrical Services Ltd (Essex)

Lee Turkington ,Managing Director, November 2007

it could be a number of things ann,, you do need to get an engineer in to have a look ..could be sticking fan or faulty APS or faulty OHS..would need investigating further

gedodonnell, November 2007