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Went to a customers today, there boiler is coming on and heating a single radiator early in the morning and in the evening. My thoughts were does this have a pretty heat function? If so could be a dodgy divert or valve, she says it seems to be at the same time that the heating is due on though but as the room state is down it shouldn't come on, it's a digistat 3.
I can't see its the frost stat as it even happened over the nice weather over the weekend.
Can anyone advise if these do have a preheat function on them please and as always offer any other thoughts.
TIA
I can't see its the frost stat as it even happened over the nice weather over the weekend.
Can anyone advise if these do have a preheat function on them please and as always offer any other thoughts.
TIA