Noisy Worcester Bosch Central Heating Boiler

[BeEm Ww]

Hi, anybody have an advice on how to quieten down my WB 24i boiler ?

It buzzes and hums .

WB replaced the heat exchanger 2 years ago because it kettled and banged a lot and also fitted a few other things.

Although it a few years old now  it has been good and it still heats the house ok but just a bit noisy .

I have checked the extractor fan and fitted another Grundfos pump head as I had a good spare one, but that has not done any good.

I am beginning to think the noise is coming from the burner ?

Is that possible or do you think it just needs a dose of cleaner in it ?

thanks

Barry Wilkins

 

[Manator]

It will require a service and a Gas and Air ratio adjustment.

So I am told by my plumber friend.