noisy boiler/alarm clock

[oddjob]

have a problem with a noisy boiler(no, not the wife). when the central heating switches on in the morning the boiler makes an awful banging noise. when up to temp and boiler switches off no probs till temp drops and boiler comes on again. the noise is not as bad but still there.have service agreement but surprise,surprise does not cover noise problems!!!.
the engineer told us it is the casing contracting/expanding on heating/cooling but no help to us when our bedroom is directly over boiler in garage.

 

[COG]

can you give the make and model of your boiler,and how would you best describe the noise and if the noise is not supposed to be there ie a motor then you should be coverd as something (a component) will be makeing the noise.

 

[oilman]

It's got absolutly nothing to do with castings expanding and contracting, if it was nobody with a boiler would ever sleep, complete load of wedding tackle. The problem is probably local boiling in the boiler. Put some central heating system restorer in the system and you will hear significant improvement in a couple of weeks. Also do a search for "kettling" on this forum.

COG may be right as it could be something like a motor or at least a driven component.

 

[corgiman]

I may be wrong but its sounds like the pump is failing

It could be that because its idle all night it is sticking a bit in the morning and causing the boiler to boil and thus make the noise

get on to the service provider and tell you pump doesnyt seem to be working and see what happens

 

[oddjob]

the boiler is a BAXI SOLO 2 (50RS). the best way i can describe the noise is like ROLF HARRIS,S wobble board every 5 seconds,starting loud then getting quieter until eventually stops(presume when temp reached).the noise definately appears to be coming from the boiler.thanks for the advice so far i wiil try the central heating restorer(er what is it,where do i get it from and where do i put it. we had a new pump fitted last year (not saying it can't be that though).

 

[corgiman]

may be the fan

sorry mate this forum although brilliant is limited I without having a look oneself i cannot advise any more