Hi all, after some help to diagnose a problem. The boiler heats the radiators/hot water to a point and runs its anti-cycle. The problem is this anti cycle is about half an hour before the boiler kicks in again. By which time the pump is still spinning the hot water round the system and goes cool. The result is the house doesn't easily warm up, and not past 20degrees.
I have replaced the thermostat dial, and the PCB (with a reconditioned one). Can anyone recommend a course of action to diagnose the fault and/or which part maybe at fault?
Any help greatly appreciated Deryck