All radiators are cold, pump is ok, boiler is firing, hot water works, bi directional valve working. Pipes leading from the pump are good and hot but absolutely nothing at the radiators. Struggling as to what to do next
Did the central heating work independently before the smart thermostat was fitted,its should be an easy answer.Have recently put in a Nest thermostat so had tried Heating Only, only to find that it didn't work.
Hasn't said please or Thank you either.Despite being asked, the op hasn't deemed it necessary to tell us what system he has.
Chances are though that the wiring has been fecked.
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