home Fix label Heating label_important Home Heating Systems category Baxi

What causes my Baxi Back Boiler to knock (bang) when Hot?

Boiler knocks when first firing up and then when hot without hot water being used. Could it be scaling in boiler or tank ? Any ideas please ?

Tom K, November 2009

home Fix label Heating label_important Home Heating Systems category Baxidone

John, Thanks, yes heating working but pump does vibrate often.

Tom K, November 2009

It certainly could be boiler 'kettling' due to scale or rubbish in the system.....I assume the circulating pump is working if the rads. are getting hot.

John, November 2009

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home Fix label Heating label_important Home Heating Systems category Baxi

What causes my Baxi Back Boiler to knock (bang) when Hot?

I can answer this question...

What causes my Baxi Back Boiler to knock (bang) when Hot?

I can answer this question ...

What causes my Baxi Back Boiler to knock (bang) when Hot?

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