This seems unbelievable, my boiler always turn itself on without been in use.For the past 3 days now, i have to turn it off from the mains.This seems to be strange to me. What do i do?Any advise?
check all external controls, timeclocks, thermostats, and especially zone valves (the microswitch could be faulty sending power to the boiler)
first, wire these out from the boiler controls so the boiler is working on its own internal controls only, if problem goes away...look to above one by one....i bet the zone valve...
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