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  1. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    The 2 rads are not on any section/extension. I'll try drawing the water off now.
  2. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Could there be air in the system above the pump? And if there is, how do you bleed that out?
  3. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Worcester Greenstar Ri 1 Bar pressure when cold.
  4. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    It dribbles out of the bleed screw. No tank in the loft, it is a sealed system. No strong magnet, i'm afraid.
  5. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Is it best to bleed it with the pump running or not?
  6. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Yes. Thought this would solve it, but it hasn't.
  7. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Thanks Terry. Yes, the pump is running. After the boiler trips out, and if we leave heating switched on, the pump gets bloody hot!
  8. T

    Post leak repair, boiler runs for 15 seconds and cuts out before accelerating

    Background. System had a leak at the first joint below the Grundfos pump, which was fixed by a plumber friend of a friend. System ran fine when tested immediately after the repair. Plumber left. That evening when the HW and heating should have kicked in, we noticed that the boiler wasn't...
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