I have a Potterton Combi 80 and it has been leaking water from the automatic air vent. The central heating and radiators have been working ok, when we use the hot water tap, after turning the tap off the boiler makes a horrible noise (kettling???), the noise comes from the back of the boiler, the big orange round thing, i think its called the pressure vessel. I am not sure if the pressure bar had dropped prior to this happening or because of this happening.
Any help or suggestions gratefully received ,unless its telling me i need to spend a fortune on it (only joking)
Any help or suggestions gratefully received ,unless its telling me i need to spend a fortune on it (only joking)