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

Worcester Heatslave 20/25 no heating - desperate!

Discussion in 'Plumbing and Central Heating' started by dso371, 23 Dec 2017.

  1. dso371

    dso371

    Joined:
    23 Dec 2017
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi all, if anyone can help here I'll be over the moon...

    We have a 10 year-old Heatslave oil combi boiler with persistent no heating/long delay before heating comes on. Hot water perfect. We have a maintenance contract with Worcester and *they* can't fix it!

    The service guys have been here maybe 6 times in the last year and replaced everything they can think of, including yesterday the diverter. But *still*, when I turn on the heating, it takes *hours* - and I mean *hours* - for the heating to come on, like it has a mind of its own! It comes on when it feels like it!

    I'm at my wit's end. If Worcester haven't got a clue, what can I do but shell out thousands for a new boiler?? Unless anyone here is a genius.

    Heeeellp and merry Xmas,
    Dave
     
  2. Sponsored Links
  3. Terrywookfit

    Terrywookfit

    Joined:
    19 Jul 2007
    Messages:
    5,773
    Thanks Received:
    1,095
    Country:
    United Kingdom
    What happens if you turn the hot water to off ??
    With demand for heating does relay click, diverter open and turn pump and burner on.
     
  4. leakydave

    leakydave

    Joined:
    2 Nov 2005
    Messages:
    959
    Thanks Received:
    102
    Location:
    Gloucestershire
    Country:
    United Kingdom
    Flow switch could be sticking in the 'ON' position
     
  5. rochdalegas

    rochdalegas

    Joined:
    21 Feb 2012
    Messages:
    91
    Thanks Received:
    19
    Location:
    Lancashire
    Country:
    United Kingdom
    What room stat have you got?
     
  6. dilalio

    dilalio

    Joined:
    20 Mar 2009
    Messages:
    7,930
    Thanks Received:
    1,291
    Location:
    Potters Bar
    Country:
    United Kingdom
    Not that urgent then?
     
    • Thanks Thanks x 1
  7. Sponsored Links
  8. dso371

    dso371

    Joined:
    23 Dec 2017
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    Yes, it is urgent and still a problem, but I’ve been watching it over Xmas since the diverter was replaced. Still takes hours for heating to come on. Haven’t tried the hot water off suggestion yet but will do so asap.

    Thanks for the suggestions, will update when I get the next service done in a few days - maybe the 10th service in the last 2 years!!
     
  9. oilboffin

    oilboffin

    Joined:
    26 Apr 2011
    Messages:
    1,665
    Thanks Received:
    247
    Location:
    isle of Lewis
    Country:
    United Kingdom
    How long does it take the diverter valve to move
     
  10. oilboffin

    oilboffin

    Joined:
    26 Apr 2011
    Messages:
    1,665
    Thanks Received:
    247
    Location:
    isle of Lewis
    Country:
    United Kingdom
    Just a thought unplug the flow switch on the pcb and see if the diverter goes over if it does the flow switch is goosed.Bob
     
  11. dso371

    dso371

    Joined:
    23 Dec 2017
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    Thanks very much, I'll mention this to the service engineer when he comes back, and let you know.
     
  12. 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