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  1. J

    glowworm boiler problem

    Thanks Ill try that as soon as I get home from work!
  2. J

    glowworm boiler problem

    No just one Danfoss Type HSA3 motorised valve
  3. J

    glowworm boiler problem

    I have a conventional Glowworm boiler installed 3 years ago. All was fine but boiler now ignores programmer and is on all the time unless power switched off.Also does not heat water now. Suspected programmer fault so changed it but problem remains. Any idea what the fault is? :cry:
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