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Combi vibrates intermittently on windy days

Discussion in 'Plumbing and Central Heating' started by Dave Cooper, 15 Feb 2020.

  1. Dave Cooper

    Dave Cooper

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    Hi,

    My combi has started shaking intermittently during the recent stormy weather almost as if air pressure is getting trapped in through the flue somehow.(sounds a little like a washing machine on spin in the next room)
    If I turn the thermostat down, it stops and then runs normally when I turn it up again.

    Does anyone have any theories about what's happening and what I should do about it.

    Thanks
     
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  3. Alec_t

    Alec_t

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    With the wind blowing across the open end of the flue, perhaps the flue is acting like an organ pipe and you are hearing a low frequency resonance? If that is the cause, then a baffle to divert the wind might be a solution.
     
  4. oilboffin

    oilboffin

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    Problem is when the wind changes. Bob
     
  5. Dave Cooper

    Dave Cooper

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    It's more violent than just a sound. The whole boiler shakes.
     
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  7. mattylad

    mattylad

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    Maybe it's scared of the wind?
     
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  8. Dave Cooper

    Dave Cooper

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  9. mattylad

    mattylad

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    can you post a picture of the outside where the flue exits?
     
  10. ianmcd

    ianmcd

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    sounds like the flue is faulty, or a flue joint not made properly, you should get a gas safe registered engineer to check the integrity of the flue , it could be dangerous
     
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