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    Sime Friendly Format 80e, replaced diverter, rads still hot

    Thanks for the help Tony. I will try as you suggest wrt cleaning the plate HE. Yes - I replaced the whole diverter valve. There is no cycling of hot and cold. The DHW flow gives a reasonable shower, but I suspect it could be better if half the heat weren't going round the CH circuit...
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    Sime Friendly Format 80e, replaced diverter, rads still hot

    Boiler: Sime Friendly Format 80e Problem: Radiators get hot when DHW is run. I had assumed this was the diverter valve, so ordered a new assy. (part: 6102806) and fitted. But it hasn't really fixed the problem, though it does seem to be marginally better. When someone has a shower (say, a...
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    How to replace expansion vessel

    Thanks all. COG was right, and fortunately mine was a MK1 and it turned out to be a 20 minute job!
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    How to replace expansion vessel

    Boiler: Worcester 35CDi Problem: gradual loss of pressure Suspected Fault: expansion vessel The boiler runs fine but after pressurising it loses pressure over a couple of days, and eventually settles down to about 0.5 bar. At this point the rads. dont really get hot properly, and it is...
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