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Why do I have hot water but no central heating?

My wall hung Vaillant condensing boiler is providing hot water but not central heating and does not show a fault on the screen. Can anyone help me please? I have checked all the radiators and they are fine so the problem is coming from the boiler somewhere and the thermostat is working well, thank you.

Lisa
November 2009
VaillantHeating, Home Heating SystemsHot Water Central Heating
what model boiler do you have

Charlieboy
November 2009
by your hot water tank you have a 3 way valve it lets you have hot water, or hot water and s/heating at back of valve is a manule lever ;it will give you s/h h/w till you get new valve. unless your boiler is a combi!!

gas man
November 2009

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