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My radiators are getting warm but not hot enough to actually heat the room properly. I have a SE12 FF boiler with hot water tank, the hot water seems ok (possibly because it has the tank to accumulate it and keep it warm). I checked the boiler and noticed that it fires up for about 10 seconds...

Hi, I have the aforementioned programmer which is working fine for hot water but not for CH. It seems that no matter what setting the CH is on (timer, continuous, override) it will not come on unless it is a particular time in the evening. For example, if I set the timer to come on at 2pm, the...