Ravenheat RSF820 Knackered Expansion Vessel

18 Oct 2004
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United Kingdom


I have a problem with the above combi-boiler, which ocurred yesterday.

The pressure on the central heating system exceed 3 bar, which tiggered the pressure relief system. I had a similar problem about 12 months before, which a plumber fixed for me and was caused by insufficient pressure in the expansion vessel.

I have just checked the pressure in the expansion vessel and a fair amount of water leaked out of the valve. My understanding is the expansion vessel should contain air only :?: :?: :?:

Do I have a leak into my expansion vessel? Is it terminal? Should I send this boiler into boiler heaven/hell? :?:

Any help would be most appreciated.

Mike D
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