My CH is coming on even though the boiler is set to HW only.
It seems to come on randomly throughout the day and night. The fact that it comes on in the middle of the night makes me think it is not linked to HW i.e it doesn't come on when HW is running. So maybe 3 way valve is ok.
My thoughts are it is maybe the timer.
Does anyone have any thoughts, before I order any parts.
Cheers.
It seems to come on randomly throughout the day and night. The fact that it comes on in the middle of the night makes me think it is not linked to HW i.e it doesn't come on when HW is running. So maybe 3 way valve is ok.
My thoughts are it is maybe the timer.
Does anyone have any thoughts, before I order any parts.
Cheers.