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Mend Bosch Radiators Hot Heating Off

radiators hot but heating off?

Hi, I have a Bosch combi boiler, the heating is turned off but some of my radiators are quite hot, dont want this in hot weather.

Steve.
May 2009
Your diverter valve has failed, or the diaphram has split. Get a heating engineer to replace/ fix

DC Gas
June 2009

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