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

Shower cycling between hot and cold

Discussion in 'Plumbing and Central Heating' started by GusGF, 23 Oct 2017.

  1. GusGF

    GusGF

    Joined:
    13 May 2014
    Messages:
    121
    Thanks Received:
    3
    Location:
    Sussex
    Country:
    United Kingdom
    Combi Boiler: Worcester Junior 24i
    When taking a shower after a minute or two the water cycles between hot and cold every several seconds and then after a minute or so it settles down and I get a steady flow of hot water again (only happens when using the shower). Having read some of the threads on this forum could this be the plate to plate heat exchanger? I've looked at the schematics for this boiler and there is another heat exchanger but seems to be encased in a cylinder.
    What is the difference between the 2 heat exchangers and which one is likely to be causing the problem? If limescale is the issue how could this be causing the water to cycle between hot and cold before settling down?
    Incidentally this seems to be happening every year so any ideas on how to avoid this in the future would be appreciated
     
  2. Sponsored Links
  3. Madrab

    Madrab

    Joined:
    4 Oct 2012
    Messages:
    7,489
    Thanks Received:
    2,074
    Location:
    East Renfrewshire
    Country:
    United Kingdom
    Does the boiler shut off then startup again at the same frequency?
     
  4. GusGF

    GusGF

    Joined:
    13 May 2014
    Messages:
    121
    Thanks Received:
    3
    Location:
    Sussex
    Country:
    United Kingdom
    Sorry absolutely no idea. We're in a bungalow with, you guessed it, the boiler in the attic!!!

    I will check for this as soon as and get back to you :)
     
  5. 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

     
Loading...

Share This Page