Hi
I have a MAIN Combi 30 HE, without a timer on it, and have gone about replacing a Honeywell 6360B with a CM901. Following advice on here, I changed over putting 1 (on T6360B) as common to A (on the CM901), and 3 as call to B.
Put the electrics back on, and now have the boiler constantly heating up even if the CM901 is switched to OFF or Manual settings (Room temp is 22C, and put the setting to 18C).
Can anyone point out something I might be missing? Otherwise will just switch back to previous and call on professional help!
I have a MAIN Combi 30 HE, without a timer on it, and have gone about replacing a Honeywell 6360B with a CM901. Following advice on here, I changed over putting 1 (on T6360B) as common to A (on the CM901), and 3 as call to B.
Put the electrics back on, and now have the boiler constantly heating up even if the CM901 is switched to OFF or Manual settings (Room temp is 22C, and put the setting to 18C).
Can anyone point out something I might be missing? Otherwise will just switch back to previous and call on professional help!