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Discuss Automatic air vent problem in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. ajt2018

    ajt2018 New Member

    Hello,

    I have a Worcester heatslave 15/19 RSO oil combi boiler.
    We have had an issue where we haven’t been able to get heat to the radiators but we had hot water.
    I replaced the diverter valve cartridge yesterday as believed this was the problem when I then refilled the boiler with water we had a couple of small drip type leaks one being from the auto air vent with water dripping out the top.

    I have drained the water out again and am trying to get the air vent off but it is stick rigid. The manual says you can just turn it, I have tried this by hand and with a spanner but it won’t budge.

    Does anyone have any ideas how I can get it off?

    Many thanks

    618AC146-CA5F-4064-ACA4-A346D61514DE.jpeg
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Grips on the body and undo
     
    • Like Like x 1
  3. ajt2018

    ajt2018 New Member

    Shaun, thanks for responding I’ve tried that it just doesn’t want to budge
     
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    It will / should if you can't time to call a pro out
     
  5. rpm

    rpm Trusted Plumber Top Contributor!!

    Don`t see anything in the photo to put a spanner on, do see a cap with ridges which indicates using a pair of grips if you can`t undo by hand.
     
    • Like Like x 2
  6. ajt2018

    ajt2018 New Member

    RPM thanks for reply yes as you’ve mentioned there is nothing obvious to put grips on apart from top rim. Will try bit more.
     
  7. snowhead

    snowhead Well-Known Member

    • Like Like x 2
  8. ajt2018

    ajt2018 New Member

    Snow head- thanks I’ve moved some more of the insulation to expose the bottom but there is nothing there to turn a spanner on. Is there any reason I can’t spray WD40 on the base to loosen it as there is a fair bit of rust at the bottom. Thanks

    image.jpg
     
  9. rpm

    rpm Trusted Plumber Top Contributor!!

    Try digging deeper.
     
  10. ajt2018

    ajt2018 New Member

    I’ve got the cap off by using a large pair of water pump pliers. But the bottom doesn’t want to come off. In the picture what you see is the top of the water tank unfortunately there is no where deeper to go.thanks

    image.jpg
     
  11. rpm

    rpm Trusted Plumber Top Contributor!!

    Underneath the body of the valve I think I see White ptfe tape and the lower part of the body seems to have scratch marks on it.
    Use the water pump pliars there where the marks are.
     
    • Like Like x 2
    • Agree Agree x 1
  12. rpm

    rpm Trusted Plumber Top Contributor!!

    Forgot to say WD40 might help here - sorry.
     
    • Like Like x 2
  13. Best

    Best Trusted Plumber Top Contributor!!

    Yes to using grips on the lower part of main body.
    I use Footprints grips and won’t matter if they chew the brass up a bit as going to be replaced
     
    • Like Like x 1
  14. rpm

    rpm Trusted Plumber Top Contributor!!

    Fancy a trip to Norfolk to help the lady out Best? :D
     
    • Funny Funny x 1
  15. Best

    Best Trusted Plumber Top Contributor!!

    No, you are closer.
    I would love to see Norfolk actually as my uncle used to live there. :)
    Lovely area apparently.
    It is combi oil boilers I wouldn’t fancy working on.
     
    • Like Like x 1
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