2 hours ago Mark asked ... Oven door removal?    |    Jt asked ... Where to buy mt270x petrol cap?    |    Jo asked ... How to engage clutch on old sewing machine to engage needle?    |    Jacky asked ... Miele Vacuum cleaner?    |    Ben asked ... Toyota Yaris French or Japanese?    |    Click here to ask your question

water leaking from top off boiler, expansion valve ????

when boiler is primed there is a great lose of water from the top left corner, expansion valve I guess, what could be the problem. its a ravenheat rsf820/20 boiler of some age
rob at stourbridge, August 2009
Sounds like your automatic air valve is leaking, this will need to be replaced. Pretty standard fitting and costs about £10.

John, August 2009
link Click here to see other fixes for Ravenheat.