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Potterton suprima failing to operate heating but is heating the water..

Discussion in 'Plumbing and Central Heating' started by gaz1234, 25 Jan 2021.

  1. gaz1234

    gaz1234

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    Hi
    Strange one. My boiler is rather intermittently not heating. Seems to be when the schedule is enabled only for heating that it fails. I get the solid red light on the boiler.
    If I turn the water on though the heating works too.
    I’ve got a smart tado in place. They seem to think it could be the gas valve?
    my view is that if it’s the valve then it wouldn’t work at all..? ideas?
     
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  3. ianmcd

    ianmcd

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    what system do you have ? Y plan or S plan, if you dont know post pics of your external controls
     
  4. 45yearsagasman

    45yearsagasman

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    Anything resembling these on your system?
     
  5. gaz1234

    gaz1234

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    Is that the valve?
     
  6. gaz1234

    gaz1234

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    It’s a suprima 40l
     
  7. gaz1234

    gaz1234

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    Currently flashing green light
     
  8. gaz1234

    gaz1234

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    Now solid orange light after upping the temp on the thermostat.
     
  9. gaz1234

    gaz1234

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    But as soon as I set the water to on the boiler kicks in and stays on. Does this tile out the gas valve as tado think?
     
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  11. terryplumb

    terryplumb

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    The valves pictured above are not gas valves ,but motorised valves for water. Usually near your hot water cylinder. Show us pics around the pipework in that area.
    They bring the boiler into operation.
     
  12. gaz1234

    gaz1234

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    Ah yes I remember replacing one of those. Actuator?
     
  13. terryplumb

    terryplumb

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    The actuator is the box on top .
     
  14. gaz1234

    gaz1234

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    Yea. it seems to be working...
     
  15. gaz1234

    gaz1234

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    Images...
     

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  16. gaz1234

    gaz1234

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    Turning up the heat to 25 and boiler still running... was 21...
    Let’s see if it gets there
     
  17. gaz1234

    gaz1234

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    Ah spoke to soon. Boiler stopped and light flashing green.
     
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