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I have no hot water from Vaillant eco tec 937?

I have no hot water from Vaillant eco tec 937- only cold water flows through the hot taps - diverter valve replaced last week - might this be the flow sensor or something else - (radiators are working fine, they're nice and hot) - Thanks

123
January 2015
VaillantHeating, Home Heating SystemsWater Vaillant Eco Tec
Change hot water sensor what the fault code?

Ltd
January 2015

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