Can't find the leak

Discussion in 'Plumbing and Central Heating' started by Jameswren, 9 Aug 2015.

  1. Jameswren

    Jameswren

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    I have a constantly dropping pressure dial on my boiler (Potterton Performa 24 Eco HE) and I cannot find the source of the leak.

    It had a slow leak for quite a long time but now it drops from 1.5 to 0 in 2-3 days.

    I had the PRV changed but that hasn't fixed the issue.

    There's never been any sign of water on ceilings, floors or walls but it could be on the ground floor somewhere (I have lifted boards and don't expect there's a dodgy pipe).

    The heating engineer has said it's probably the heat exchanger but I've been quoted quite a lot to fix it so hoping I can establish its definitely that to blame.

    Anyway I can test it?
     
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  3. Crystalclear

    Crystalclear

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  4. picasso

    picasso

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    pressurise your boiler, turn it off at the main switch and then turn off the flow and return valves under the boiler, (leave for 24hrs) if the pressure stays the same its not the boiler heat ex.
     
  5. Dan Robinson

    Dan Robinson

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    Crystalclear - that part of the assembly has sod all to do with system pressure:confused:
     
    Last edited: 9 Aug 2015
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  7. Crystalclear

    Crystalclear

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    Dan-Robinson - the YTUBE uploader clearly stated ,

    "...I was called to repair this Potterton Perfoma 24 boiler because it was not performing at all !. No wander the other Corgi engineer has taken the PCB ( printed circuit board) with him. During investigation, a leaking diverter valve is found. If left not repaired this boiler may develop other faults. Electrical failure due to water ingress, boiler go to low pressure, no hot water but heating ok, are just 3 possibilities and guess what there are more.... ............Contact us to get it repaired.!"

    JamesWren wanted to know how to spot a leak on his Potterton Performa 24 Eco HE, and I suggested he look at what someone else found, hence the sodding video! :p

    So there! Nah** nah** :p
     
  8. Dan Robinson

    Dan Robinson

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    That wasn't the diverter for a start.
     
  9. gasmanstu72

    gasmanstu72

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    if you cant find it anywhere obvious and dont want to lift your floorboards and have a look then you could try this...

    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[​IMG]

    but try and what Picasso suggested first to eliminate the heat exchanger
     
  10. Jameswren

    Jameswren

    Joined:
    6 Nov 2011
    Messages:
    237
    Thanks Received:
    1
    Location:
    Hertfordshire
    Country:
    United Kingdom
    Hi and thanks for replying.

    The boiler is in a tenanted property so it's difficult to leave it off for long.

    I pressurised to 2.0 this afternoon, switched-off the boiler and there was no movement for about 5 hours - if that isn't conclusive I'll try again another day when I can leave it longer.
     
  11. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

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