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Worscester 24i boiler

No heating or hot water gas wont ignite lost water pressure now refilled but seems to be airlocked anyone know how to vent boiler

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  • blue236 Feb 19, 2009

    it should have an auto air vent that does itself i think other way to do it is see if rads have air. hope this is of help

  • Rod Davies May 11, 2010

    The manual vent [automatic pressure relief valve] is inside the casing usually a large red knob which can be turned by hand situate at the lower right - You should have a pipe which goes through the outside wall from it This vents and will empty the whole system inc rads
    The auto vent is usually close to the water pump and has a small red/black knob [short biro top size] this should be open by 1 turn from closed This vents the air from the boiler only, automatically when in use
    Lost pressure = leak maybe through manual vent - have a look outside where the vent pipe goes through the wall
    If your pressure is about 1 bar then its something else Does the fan [on top of boiler and at start of the 110mm vent pipe] work. This should come on when there is any demand from boiler even if it does not fire up




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There is sometimes a large screw on the front of the of the pump un screw a bit and see is air comes out

Posted on Apr 06, 2010

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