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It's a Glow Worm Betacom 24c condensing combi and as the title says it has no pressure in the DHW to the point that the thermostatic shower dosn't work any more. The heating works fine and the cold water pressure is fine. The boiler is about 4 years old, was serviced and tested in June and...

Hello everyone! I have a conventional open vented system with a Potterton Profile 80e situated in the airing cupboard next to the hot water cylinder, with a feed and expansion tank in the loft. The house is a bungalow with 9 radiators, although one rad is in a basement room. For a while now...