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Combi boiler?

In the event of changing tap washers whilst you have a combi boiler installed. In turning the main water stop cock off, does this also prevent hot water running or is there another valve/tap on the boiler to be turned off to enable you to proceed and change the hot and cold tap washers - many thanks
Helen, October 2009
Switch the boiler off and turn off the cold water supply to the house....you can then rock an' roll with the taps.

John, October 2009