B
Bav
I've just changed a radiator on a Worcester Greenstar 42CDI boiler combi system. When I bled the radiator I topped up the pressure at the boiler to around 1.5bar. I did this a couple of times as the pressure dropped whilst filling as it is quite a big double radiator. I noticed water on the floor in the utility room where the boiler is and on further investigation found water spraying out of the screws on three 15mm isolation valves. These valves are situated behind the kitchen units and are on various sections of pipework. I have drained down the whole system and am changing all of the valves even ones that were not leaking but I would like to know what has caused this. The only thing I can think of is that I somehow over pressurised the system and the fittings failed? Any help will be very appreciated as I am now in the dog house with the missus.