ravenheat 85 going over pressure

[westycarpet]

hi ive read the comments about ravenheat boilers but im stuck with one !
the boiler keeps losing pressure to 0 then when topped up to 1 bar, the pressure goes up to 3bar after a while and water comes out of the relief pipe. all rads on the system are hot and all rad valves fully opened. i have put some sentinel in the system but not flushed it out yet.
any help would be appreciated

 

[jackthom]

Hi, it sounds like the expansion vessel needs repressurising and the Pressure Release Valve is probably leaking.

More info here in the FAQs....

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