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Potterton suprema boiler heating not working but water is ok..

Discussion in 'Plumbing and Central Heating' started by gaz1234, 25 Feb 2016.

  1. gaz1234

    gaz1234

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    Hello

    I have the above boiler and whilst it's not a very good one, it has done myself quite well until now. I noticed not long after having a Quartz shower installed that something in the airing cupboard was making a humming/buzzing noise normally not long after the heating/water has been on for a long time. I also noticed that putting on thr heating manually for 1hr, 2hrs or constant wasn't working unless the water was on at the same time..

    Anyway, now I have no heating. I noticed that a couple of the radiators were luke warm after I reset the boiler, turned the thermostat up and the gas dial thing (on the boiler). I also turned the ermergen (whatever its called) on and that also made a couple of radiators warm. Assume a coincidence? I also have found that control panel for the water/heating switches are very sticky. But don't think has anything to do with it.

    I also turned a switch on some black think in the airing cupboard (shows I, II, II) which looks to control water speed? Well I switched this too.

    Now on closer inspection I think it could be the white (is it the diverter valve) thing in the airing cupboard making the humming noise. My guess is that this has packed up?

    Suggestions? I was going to buy this diverter value (but about £200) and also look at getting a tado for the water and heating.

    Hot water is fine though..

    Ideas/suggestions?

    Thanks
     
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  3. gaz1234

    gaz1234

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    Oh, and on the white diverter value (if it is this) there is a switch (cant read the label) for manual override, which when pulled across the water light goes off...
     
  4. 45yearsagasman

    45yearsagasman

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    All points to the flux capacitor, whatever its called.:D
     
  5. gaz1234

    gaz1234

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    Thanks! One would assume you don't know then?
     
  6. 45yearsagasman

    45yearsagasman

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    I probably do, but with such scant information, I had little to go on from behind a keyboard. That's why with over 70 views, no one has come up with any answer.
     
  7. Scarum

    Scarum

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    1/
    This probably confirms third point...

    2/
    This is the system pump, leave it at the speed it was originally.

    3/
    This sounds like the actuator; this turns the 3-port valve on which it is mounted, they can sometimes be removed without a drain. Come back with a photo of it.
     
  8. gaz1234

    gaz1234

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  9. gaz1234

    gaz1234

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    Just felt the CH and DHW and input pipes and all three are hot...
     
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  11. Scarum

    Scarum

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    What is written on the actuator (make and model)?
     
  12. gaz1234

    gaz1234

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    The white box or the the other one?
     
  13. gaz1234

    gaz1234

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    If the white one then it's potterton
     
  14. gaz1234

    gaz1234

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    Right, had a bit of a play and read online. I have set the slider on the diverted to manual so tomorrow morning i will see if the ch works.
    Going back to my first post, the ch only works when the hw comes on so I'm thinking its a faulty programmer unit....
    Think I'll replace this for a Tado first then look at the diverter...
     
  15. Scarum

    Scarum

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  16. gaz1234

    gaz1234

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    I've moved the position to manual (not disconnected it) and all seems to be working.
    Ive read that the Honeywell one will replace the potterton? Easy to fit the whole thing (inc 3 pipes)?
    Going to replace control panel and thermostat too as the heating isn't working by itself when manually set..
     
  17. gaz1234

    gaz1234

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