Answer by Rory Alsop for My hot water boiler failed **On** - what would cause...
Despite scouring the Internet, I didn't find the solution - the gas man came today and after describing the symptoms to him he identified it immediately:Faulty zone valve contact switchBasically, the...
View ArticleAnswer by mikes for My hot water boiler failed **On** - what would cause that?
My fist thought would be a failed boiler control relay or boiler control circuit board. Depending on the age of the system the thermostat is wired to a relay or a control board. The thermostat supplies...
View ArticleMy hot water boiler failed **On** - what would cause that?
I arrived back from holiday to find the house like a sauna, everything in the kitchen too hot to touch, cutlery scalding hot etc. My central heating was on full, and must have been for some days. Quick...
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