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

Vokera 28 Linea "kettling" on CH but not HW

Discussion in 'Plumbing and Central Heating' started by kjmcdow, 17 Jan 2019.

  1. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    Still keepin' the auld 28 going but it's getting noisy when heating the central system; quiet, almost silent when heating water. I suspect the pump is on the way out. Any suggestions on how I check? Would be much obliged for any input.
     
  2. Sponsored Links
  3. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    when was the diverter valve last serviced ?
     
    • Thanks Thanks x 1
  4. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    The diverter valve was serviced last Autumn but by me, a DIYer. Could I have done something wrong? How do I check?
     
  5. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    Is the thinking that the diverter value is not allowing enough flow through the central heating system?
     
  6. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    no if everything is working OK you have done it right, not really a hard job, when you say the boiler is kettling is it just for a min or so and settles down or does it do it for a while ? does the boiler modulate to low flame or go off and then come back on ?
     
  7. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    The noise is continuous with the CH being on, turn on a tap and its stops, turn off the tap and it starts. Switch to HW only and its stops. The frequency of the noise is also constant.
     
  8. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    sorry just came to me, when you serviced the diverter valve did you change the shuttle assembly ? when you say kettling do you mean a high pitched screetching , kettling is exactly that sounds like a kettle boiling
     
  9. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    Doesn't sound like a high-pitched screeching more like a pan of water boiling. Could I try uploading a file of the sound?
     
  10. Sponsored Links
  11. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    Yes do that but it sounds like you have got it wrong with the diverter valve shuttle replacement, if you only used part of the kit or got the two O rings mixed that would cause it
     
  12. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
    Can't attach mp4 file, I am afraid.
     
  13. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    think you have got the diverter valve service wrong
     
  14. kjmcdow

    kjmcdow

    Joined:
    3 Dec 2009
    Messages:
    45
    Thanks Received:
    2
    Location:
    Yorkshire
    Country:
    United Kingdom
  15. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    12,550
    Thanks Received:
    3,720
    Location:
    Lanarkshire
    Country:
    United Kingdom
    if it stops when you run the HW it is definately diverter valve orientated , that is most definately not Kettling
     
  16. Hot&Cold

    Hot&Cold

    Joined:
    16 Jun 2017
    Messages:
    1,530
    Thanks Received:
    270
    Country:
    United Kingdom
    From the short audio clip,it sounds more mechanical that kettling, its almost as if something is bobbin around inside the boiler.

    They are good boilers but at times need an expert to repair them :idea:
     
  17. 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.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Sponsored Links
Loading...

Share This Page