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Glowworm ultracom 12hxi - No hot water

2

Comments

  • bris
    bris Posts: 10,548 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    https://www.youtube.com/watch?v=T7UTDtrmcvM
    Watch that, it might be the same or only 2 pipes but the solution, if it's the problem, is the same.


    The video talk about heatings but its exactly the same for hot water.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    Thank you! Will watch and see how i get on.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    So, I found our thermostat which has Hot water at one end of dial, and heating at the other. Turned this to hot water and the valve moved over to hot water on the boiler. left this for a good hour, boiler was making noises, ran water downstairs and then upstairs. Still nothing.
  • southcoastrgi
    southcoastrgi Posts: 6,298 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    Finchy2018 wrote: »
    So, I found our thermostat which has Hot water at one end of dial, and heating at the other. Turned this to hot water and the valve moved over to hot water on the boiler. left this for a good hour, boiler was making noises, ran water downstairs and then upstairs. Still nothing.

    I can't quite work out what you are ref to ?
    Can you post some pics (use a web hosting site & post the links)
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    I can't quite work out what you are ref to ?
    Can you post some pics (use a web hosting site & post the links)

    here you go
    20190307_083814_zpsxsqgq2ls.jpg

    It's doesn't come out as cold as the cold tap water, but it's not warm by any stretch of the imagination. I feel like there is a step we are missing.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    and this is in the cupboard next to the boiler

    20190302_104129_zpsrgwsxe0h.jpg
  • Le_Kirk
    Le_Kirk Posts: 25,644 Forumite
    Part of the Furniture 10,000 Posts Photogenic Name Dropper
    Now we know it is a Switchmaster controller, further research indicates that it is an old fashioned system that shared the hot feed from the boiler between the DHW and CH pipes. The diverter valve seemed to be not the standard Feed to DHW or Feed to CH to Feed to both but a modulating type valve that was infinitely variable between the two outputs depending upon where the knob was positioned. I would be investigating the diverter valve and checking if it moved when the control knob was turned. Research via Auntie Google suggested that the diverter valves were prone to seizing up gradually, whilst they would still work, they took ages to move.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    Thank you. I will test this out tonight - my husband said it did move when I set it to hot water, but I will recheck when I get home.
  • Finchy2018
    Finchy2018 Posts: 508 Forumite
    Fifth Anniversary 100 Posts Name Dropper Debt-free and Proud!
    So I tested the morning and it definitely turns to hot water but just no actual hot water!
  • southcoastrgi
    southcoastrgi Posts: 6,298 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    Time for a bit of an upgrade I think
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
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