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  1. GarethF1981

    Boiler losing pressure but only when HW on and CH off

    Hi all, We moved into the house July 22 and, apart from the occasional top up, have had no issues with boiler, HW or CH. Recently, however, we've started having issues with the pressure on the boiler but only when only the HW is on. What happens is that I can check the pressure all day long...
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