Hot water thermostat gone faulty? ?

Manwithnoname, thank you very much for your answer. The boiler is a British Gas 330+. The boiler and the hot water tank are in the cellar.The hot water tank has a thermostat on the front. Water tank in the loft. Radiator in every room of a two storey house.

Jo B
May 2011

i'm assuming you have:-
hot water cylinder
motorized divertor valve

could be something as simple as divertor valve passing
BUT
would need to know
make & model of boiler
system configuration i.e. S plan, Y plan etc
fully pumped or gravity circulation

the more information you can give the more accurate the diagnosis of fault

manwithnoname
May 2011