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Warm water from hot water cylinder.

paul123
paul123 Posts: 45 Forumite
Part of the Furniture 10 Posts Combo Breaker
in In my home (includes DIY) MoneySaving
Can anyone please help? The hot water from my cylinder supplied from my combi boiler has gone luke warm. The pipework before and after the motorised valve is hot before it goes into the hot water cylinder. The central heating is working fine.
Thanks

Comments

  • Canucklehead
    Canucklehead Posts: 6,254 Forumite
    Hi

    More detail would help, like boiler make, cylinder - vented /unvented.?

    From info so far I would say cylinder stat faulty or programmer? You say the motorised valve pipes are hot but is the valve actually open ? Is there a manual lever you can check to see (as on a Honeywell.)
    Do you really have a combi?

    GSR
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • 1984ReturnsForReal_2
    1984ReturnsForReal_2 Posts: 15,431 Forumite
    Canucklehead wrote: »
    Do you really have a combi?

    GSR



    I will stake my house that he hasn't.. ;)
    Not Again
  • macman
    macman Posts: 53,129 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Combi+hot water cylinder: does not compute...
    No free lunch, and no free laptop ;)
  • Canucklehead
    Canucklehead Posts: 6,254 Forumite
    macman wrote: »
    Combi+hot water cylinder: does not compute...


    It can be done.


    GSR.
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • macman
    macman Posts: 53,129 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    But I suspect the OP means condensing boiler?
    No free lunch, and no free laptop ;)
  • paulsad
    paulsad Posts: 1,315 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Surely a combi to a HW cylinder would need the cylinder to be heated as well if it stood unused for a time; not somat I've come accross.
  • paul123
    paul123 Posts: 45 Forumite
    Part of the Furniture 10 Posts Combo Breaker
    edited 6 November 2010 at 11:07AM
    Excuse my ignorance, boiler is about 7 years old. Potterton Suprima. Conventional boiler.
    Cylinder is Supercal 3 vented cylinder. The water in the cylinder gets no hotter than 30 degrees. If I turn the thermostat lower I can hear a click from thermostat and I can hear the motorised valve turning off.
    Hope this helps.
  • gas4you
    gas4you Posts: 2,602 Forumite
    Possibly partially blocked pipe work?

    Have you a balancing valve in the return from the hw cylinder? If so try opening it more.
  • Canucklehead
    Canucklehead Posts: 6,254 Forumite
    gas4you wrote: »
    Possibly partially blocked pipe work?

    Have you a balancing valve in the return from the hw cylinder? If so try opening it more.


    Plus...

    If you have a F&E tank in the roof then see if it's full of water, or has the ballvalve stuck.

    GSR.
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
This discussion has been closed.
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