my boiler keeps on calling for heat even after the time clock has switched off and the roomstat is statisfied. the only way to control it is by switching it off at the spur. I have changed the pcb on the boiler, replaced the time clock & mid position actuator, and still no joy!!! I have even disconnected the cylinder stat and room stat. What is the problem??? I have checked the wiring diagram and all seems to be correct. Can anyone help i've run out of ideas.
Boiler keeps on calling for heat
- Thread starter Crutchley
- Start date
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what boiler is it etc ?
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