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hi yes i got two of them through flow ones, but they must be much older and are bigger so i thought they were pumps of some sort ;)

that's exactly the case the hot water works fine with programmed times, programmer responds to the wireless thermostat, but when heating comes on it wont activate the boiler itself nor the pump valve

the problem is the LP241 never had a thermostat fitted to it I never changed any wiring before fitting the T720R

Hi I have similar problem with LP241 after changing to T720R the heating wont start the boiler the wiring looks exactly the same as LP241 but for some reason it wont bring up the heating. the water heats ok its just the central heating