My central heating boiler is not working. I have switched the thermostat on and the boiler is not firing up. The light for the central heating is only flashing when the hot water is turned on, otherwise the light is off. Any ideas what could be wrong with it?
the flashing light is just a waiting time the light stays permanent when the heating is asked for as this is not happening check the internal or external thermostat is calling for heat if it is calling for heat check or replace the thermister
ricky
July 2007
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