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Replaced radiator wont heat and shuts off boiler .....

Discussion in 'Plumbing and Central Heating' started by mikeyc82, 10 Jan 2010.

  1. mikeyc82


    10 Jan 2010
    Thanks Received:
    United Kingdom
    Hi all,

    I have just replaced a radiator which was removed about 2 years ago (don't ask!). They no longer make the same size rad so I replaced with a slightly smaller one and had to move the pipes. I just cut and connected with a couple of compression joints.

    The system has been bled and seems to be no air left in the system.

    However, everything works fine until I open the valve on the new rad and then the boiler just stops. Close the valve and the boiler fires up again.

    Can anyone help me?

    Many thanks

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