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Help air in system

I have bled radiators and taken air out and they work OK for 1/2 hour and then the upstairs 2 rads get air in again and go cold. It's happening all the time. and now we have water coming out of overflow from top. HELP. It's not a combi boiler.

Comments

  • ariba10
    ariba10 Posts: 5,432 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Is the water coming out of the tank overflow or from the hooked shaped pipe bent over the water tank?
    I used to be indecisive but now I am not sure.
  • ariba10
    ariba10 Posts: 5,432 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    If the water is coming out of the hooked shaped pipe over the cold water tank, it means that your pump is running too fast for the amount of water that it has to pump.

    That would draw air into the system.

    Either slow the pump down or open some of the shut down radiators to give the pump more work to do.
    I used to be indecisive but now I am not sure.
  • farook
    farook Posts: 39 Forumite
    Brilliant Ariba100
    Slowed the pump and jobs a good one. The power of knowledge. The right knowledge.
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