Squealing Vaillant boiler

Home Forums Public Forums General Plumbing Squealing Vaillant boiler

Viewing 1 reply thread
  • Author
    Posts
    • #276025
      Avatar photoMasterPlumbers
      Keymaster

        My boiler has been OK except that it sometimes squeals when hot water (and more rarely cold water) is turned on while the radiators are on. Turning the radiators off at the boiler has (previously) stopped the noise. For the first time today, however, the loud squealing noise happened when I turned the radiators on (no taps running). Again, the noise goes when I turn the radiators off. Effectively, it seems I can’t have heating without an awful loud noise. Can anyone help?

      • #293298
        Avatar photoHarold Kestenholz
        Participant

          You have a valve seat vibrating from the water velocity – it must be rebuilt.

      Viewing 1 reply thread
      • You must be logged in to reply to this topic.

      Pin It on Pinterest

      Share This