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  1. J

    Vaillant turbomax fault finding f33 fault code

    Thanks to everyone! It was in fact the fan being dirty that prevented enough airflow being sensed to trip the pressure switch. JL
  2. J

    Vaillant turbomax fault finding f33 fault code

    No can't here anything running first. After reset sounds like boiler fires up then nothing again. Green light on throughout!
  3. J

    Vaillant turbomax fault finding f33 fault code

    Thanks for that. Anything simple/obvious that a novice can check........no chance of getting anyone out today I doubt!
  4. J

    Vaillant turbomax fault finding f33 fault code

    I currently have no central heating or water. After resetting the boiler I get an F33 fault code. Any ideas please?
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