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Mend Valiant 242E Home Heating Systems

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Valiant 242E turning on?

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?

Sam
May 2008
Valiant 242EHeating, Home Heating Systems
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...

T
May 2008
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