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No pressure after bleeding rads

  • 22-01-2013 12:03pm
    #1
    aaakev
    Registered Users, Registered Users 2 Posts: 3,088 ✭✭✭


    Hi lads, a few rads were not heating so i blead them all, everything fine then for a couple of days and then there is no pressure at the boiler so the heating wont turn on, open the valve in the hot press and can get a small bit if pressure, enough for the bouler to start and then it goes up to 1 and stays there, works fine until its oiff a while and the pressure drops again so i have to fill again to use it.

    I noticed a small leak from the overflow pipe the other day, this was inside the house dripping off the pipe not from the pipe.

    Boiler was only serviced around nov and i have checked all bleed screws, they are all tight.

    Any help appriciated, thanks


Comments

  • #2
    Robbie.G
    Registered Users, Registered Users 2 Posts: 1,884 ✭✭✭Robbie.G


    Sounds like your safety valve is leaking through or expansion vessel needs looking at. When you top up to 1bar what is your boiler pressure after the boilers working for 30 mins.You are going to need a rgi to fix it for you


  • #3
    corkgsxr
    Registered Users, Registered Users 2 Posts: 3,404 ✭✭✭corkgsxr


    what about the pipe from the blowoff. any pipes going outside on the wall the boilers on?


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