home Fix label Heating label_important Home Heating Systems category Vaillant

vaillant combi boiler?

i turn my therostat down to 5d at bed time and my heating comes on through night help me

cutchy, February 2010

home Fix label Heating label_important Home Heating Systems category Vaillantdone

thanks for that you were right

cutchy, March 2010

It's probably the diverter valve is passing. This can happen if your boiler has a warm start feature for hot water.
Run your hot water tap and feel the flow pipe on your boiler. If this gets warm then the valve is passing.

M, February 2010

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home Fix label Heating label_important Home Heating Systems category Vaillant

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