my ravenheat combi boiler has just started losing pressure there are no leaks evedent anywhere on the system and the expansion vessel sounds empty so should be doing its job . also nothing coming from pressure relief pipe

john, February 2010

Mel,
Any chance of a brief run through of how your re-pressurised the PV?

Matt

Matt, January 2011

CSI85T had problem with pressure leaking from the Central Heating. Having checked all radiators, went outside and found water coming from the Pressure relief valve pipe. On the boiler, looking behind front control panel, it is red tap with a black centre on Right Hand Side. Bought new one, and replaced as the washer had gone hard inside.

No name supplied, December 2010

I just fixed similar problem on my Ravenheat today. Pressure vessel needed repressurising. Bastard of a job to get to as my boiler has been built into an airing cupboard and the PV valve is right at the back, under the wall fixing bracket, up against the wall... much swearing and bruised knuckles before I finally managed to fit the bike pump! However... boiler now ticking along nicely, with no loss of pressure and no abnormally high pressure readings either.

Had a plumber out to look at it a while back. Told me I needed a new PV and that he'd have to rip out the airing cupboard to get to it. Thank God for Google!!

Mel, February 2010