problem is boiler cycles on and off with ch on only
it fires up for low flame then goes to high flame then cuts out this happens all the time, but not from cold in the morning but once heated up it starts to cycle on and off.
dhw only is fine
it fires up for low flame then goes to high flame then cuts out this happens all the time, but not from cold in the morning but once heated up it starts to cycle on and off.
dhw only is fine
