Help added too much pressure?

Also is the pressure rising with the c/heating on. If it is it could be a faulty expansion vessel-which is designed to keep system pressure level as the c/heating system water expands when its temperature rises.

daz71
November 2008

sounds like u have not shut off the filling tap properly

matt
November 2008

When you pressurized did you leave filling loop open. If you didn't then it sounds like you have mains pressure from the domestic hot water side of the boiler getting into c/heating side maybe through water to water heat exchanger. But only speculation as i don't have enough facts. p.s. Don't add pressure with c/heating on.

daz71
November 2008