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Mend Combi Boiler Heating System Fault

Combi boiling heating question?

Hi,

Over the last few days when I have turned on the hot water taps the radiators have also warmed up.

This has never happened before. Is it a fault that I need to worry about?

Thanks

Paul
August 2010
Heating, Home Heating SystemsCombi Boiler Heating System Fault
diverter valve. its not right to happen.
what boiler is it.

hi-spec plumbing & heating (essex)
August 2010

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