Could any explain how to change the valve that is attached to the expansion vessel? I’ve had a problem a couple of years ago with the expansion vessel and it turned out to be a fault valve. An engineer replaced the valve and the problem was fixed. The problem seems to have returned. It may be the expansion vessel needs to be replace and if that’s the case I will get a CORGI register engineer but if it’s a simply job to replace the valve I try that to see if it cures the problem.
Boiler type – Vokera Linea 24.
Boiler type – Vokera Linea 24.