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Hallelujah!!! Thanks to all who have taken the time out to reply. I’ve been on two talk groups and the last comment from one of them sorted it for me. Unbelievable! Basically by opening the pressure release valve (PRV) and letting it snap shut hard a couple of times, I can only guess it has...

Hi The valve leaks at 1.5 bar with the water cold but no I did not fire up the heating, this is all with electic mains to the boiler switched off, and the system cold, so there is no additional "heat" pressure. Any other ideas, I'm still fancying the new faulty part, but that's because...

Hi I got the pressure back up by turning a small "tap" that is on an 15mm inline valve on the mains water inlet to the boiler. I've used this a zillion times to put the pressure back up. I read somewhere about pressurising an expansion vessel, or pressurising the system a bit whilst it is...

Hi I have a Worcester 24i and for ages now it has been slowly leaking from the 3bar Pressure release valve. After talikng to a few people "in the know" I have tried flusing a bit of water through (to get rid of a bit of muck) on many ocassions but the problem seemed to get worse. Eventually I...