1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Vaillant 831 plus plate heat exchanger replacement - how to?

Discussion in 'Plumbing and Central Heating' started by Hazee, 6 Jan 2017.

  1. Hazee

    Hazee

    Joined:
    6 Jan 2017
    Messages:
    12
    Thanks Received:
    0
    Country:
    United Kingdom
    IMG_4431.JPG Have a vaillant ecotec plus 831

    Could someone right up a quick how to.

    E.g.:
    >turn off cold water
    > turn off boiler
    > run hot water taps
    ........

    Please see pictures attached for reference
     
    Last edited: 7 Jan 2017
  2. Sponsored Links
  3. empty-seat

    empty-seat

    Joined:
    3 Jan 2017
    Messages:
    39
    Thanks Received:
    3
    All you're gonna get is a lot of people telling you off for being naughty.

    Take cover.
     
  4. snes

    snes

    Joined:
    28 Nov 2004
    Messages:
    366
    Thanks Received:
    57
    Country:
    United Kingdom
    Presumably you are doing this because of scale issues?

    Be simpler and cheaper to hire a Kamco unit and run some descaler through.

    That way, you can replace the room sealed cover before anyone on here notices you have removed it and work from outside the case.
     
  5. Hazee

    Hazee

    Joined:
    6 Jan 2017
    Messages:
    12
    Thanks Received:
    0
    Country:
    United Kingdom
    Yea just lime scale build up


    Hopefully not I just wanted to confirm

    - turn power off
    - turn off incoming water
    - run hot water taps till dry
    - drain off primaries
    - remove 4 screw / exchanger
    - replace with new exchanger with new washers and a bit of silicone grease

    Jon done
     
    Last edited: 6 Jan 2017
  6. empty-seat

    empty-seat

    Joined:
    3 Jan 2017
    Messages:
    39
    Thanks Received:
    3
    *cant watch*
     
  7. snes

    snes

    Joined:
    28 Nov 2004
    Messages:
    366
    Thanks Received:
    57
    Country:
    United Kingdom
    I'm hiding under the sofa.....
     
  8. Hazee

    Hazee

    Joined:
    6 Jan 2017
    Messages:
    12
    Thanks Received:
    0
    Country:
    United Kingdom
    Standard forum replies

    If the above is wrong and not how you would do it simply say so.

    The boiler is serviced regularly by a GS engineer.
     
  9. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    21,911
    Thanks Received:
    8,615
    Location:
    Lanarkshire
    Country:
    United Kingdom
    He will be along any minute
     
  10. Sponsored Links
  11. muggles

    muggles

    Joined:
    28 Oct 2005
    Messages:
    12,949
    Thanks Received:
    2,913
    Location:
    Daventry
    Country:
    United Kingdom
    Oh go on then, I'll do this one ;)

    @Hazee unless you're Gas Safe Registered you shouldn't be taking the cover off your boiler - it creates the room seal that is there for your safety
     
    • Like Like x 1
  12. Agile

    Agile

    Joined:
    26 Jun 2004
    Messages:
    63,906
    Thanks Received:
    4,572
    Location:
    London
    Country:
    United Kingdom
    If that is really the case then why has he not been engaged to swap the plate for you?

    Tony
     
    • Like Like x 3
  13. Bunnyman

    Bunnyman

    Joined:
    22 Mar 2010
    Messages:
    5,497
    Thanks Received:
    1,841
    Location:
    Northamptonshire
    Country:
    United Kingdom
    As above , hope ur safety is not important to you, and anyway these are not prone to scale ur wasting your time thats not the realistically not the problem
     
    • Like Like x 1
  14. Dan Robinson

    Dan Robinson

    Joined:
    1 Jul 2007
    Messages:
    56,034
    Thanks Received:
    9,420
    Location:
    Hertfordshire & London
    Country:
    United Kingdom
    I have zero love lost for these boilers, but..... The plate on these is as equally unlikely to scale up as it is easy to remove.

    Hope you know your 26.9 checks to.
     
  15. dilalio

    dilalio

    Joined:
    20 Mar 2009
    Messages:
    7,463
    Thanks Received:
    1,161
    Location:
    Potters Bar
    Country:
    United Kingdom
    2:26am Dan!
    Were you unable to sleep due to thinking about this thread? :LOL:
     
  16. Dan Robinson

    Dan Robinson

    Joined:
    1 Jul 2007
    Messages:
    56,034
    Thanks Received:
    9,420
    Location:
    Hertfordshire & London
    Country:
    United Kingdom
    It's causing me all kinds of worry. Not sure how I will get through the day to be honest.
     
    • Like Like x 3
  17. Madrab

    Madrab

    Joined:
    4 Oct 2012
    Messages:
    7,931
    Thanks Received:
    2,237
    Location:
    East Renfrewshire
    Country:
    United Kingdom
    Hazee, I'm afraid you won't get any help here when it comes to DIY work inside a sealed boilers combustion space, it's the forums rules. No-one that isn't gas safe registered should really be inside that space. It's really for your own safety.

    Get your GSR in and let him diagnose and rectify whatever issue it is you are seeing, once fixed he can then ensure that the boiler is sealed back up properly by his standard checks and tests.
     
Loading...

Share This Page