Ive recently re-pressured my expansion vessel to stop the bolier losing pressure after some great advice on here to 17.5psi (1.2bar). The boiler is showing 1.5 on the front so all good.
However when I turn the heating on the pressure quickly rises to 3bar and stays there until I switch off. I took the psi of the expansion vessel and it was 42.5 when the heating is on.
My assumption is 1.2 is too high as a starting pressure on the expansion vessel ?....is 0.8 more realistic ?
Tia,
Mike
However when I turn the heating on the pressure quickly rises to 3bar and stays there until I switch off. I took the psi of the expansion vessel and it was 42.5 when the heating is on.
My assumption is 1.2 is too high as a starting pressure on the expansion vessel ?....is 0.8 more realistic ?
Tia,
Mike