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  1. J

    Low hot water pressure (airlock?)

    Hi, We have a Glowworm Ultimate boiler with a Y plan central heating/hot water setup. The hot water pressure is the problem; when we run a bath (at which point the pressure seems fine) and then turn on the hot tap in the same bathroom it starts off fine for a few seconds then turns to a...
  2. J

    Glowworm Ultimate not always firing even though pilot is lit

    Hi, We have bought a house with a 10 year old Glowworm Ultimate which seems somewhat temperamental. The pilot is always lit and we always seem to have hot water but if we try to advance the central heating it doesnt always fire up. I have bypassed the wall mounted thermostat and bought a...
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