Central heating system is a Y plan I think (3 way motor valve)....with a worcester 24i boiler (not combi). When cold the pressure guage is at zero, but when operating the pressure is in the green range on the dial......but falls back when totally cold again,
I have topped up the system a couple of times, and the same happens, all radiators are bled and there are no obvious signs of a leak anywhere......but Im in no way a plumber/boiler tech
I have topped up the system a couple of times, and the same happens, all radiators are bled and there are no obvious signs of a leak anywhere......but Im in no way a plumber/boiler tech