DIY Doctor

combi. hot water rumble ?

Postby temps » Wed Dec 10, 2008 11:23 pm

worcester combi (model on boiler says C1) .......! ! !
working fine accept when ask for hot water, after a few seconds starts to rumble, pressure gauge flickers, then rumble dies off. d.h.w gets hot and is fine. blockage in exchanger? please help guys.
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Simply Build It

Postby Steve the gas » Thu Dec 11, 2008 5:35 am

Hi Temps,

Can you see if you get 'flame lift' ?
Steve the gas
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