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Not sure if its the same problem or is my wiring totally to pot? I've noticed that the pump is also running even with no demand (timed off) and when the boiler is not on. If i put the programmer to 'off' (CH & HW) the boiler and pump still run. If i turn off the boiler (greenstar HE)...

I have a boiler that keeps switching on and off even though there is no demand. Both the hot water and the CH are timed off (Tempus 6 programmer shows no lights) but the boiler insists on coming on all the time. The temp indicator is permanently around 85 deg- drops to around 75ish and then...