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Potterton Apollo 30

Discussion in 'Plumbing and Central Heating' started by SamVinyl, 21 Feb 2021.

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  1. SamVinyl

    SamVinyl

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    Hello
    The water light is on constantly on this boiler. No water is running. But it won’t go out and as a result the Heating does not work.
    I have switched the boiler off and also tried the reset as per instructions.
    But as soon as I turn the boiler back on the water light stays on.
    If I run the hot water tap the boiler fires up on water only.
    It does not then switch back to heating.
    Any ideas as to what the problem is ?

    many thanks
     
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  3. ianmcd

    ianmcd

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    isolate the cold water inlet valve below the boiler and see if the light goes off
     
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  4. SamVinyl

    SamVinyl

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    Thanks I tried that and the hot water light is still on and won’t goo out
     
  5. ianmcd

    ianmcd

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    sounds like a faulty hall sensor
     
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  6. SamVinyl

    SamVinyl

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    Thanks,
    theres 3 on off valves on pipes going to the boiler, which one of the three is the cold water and how long should I turn it off for. I thought I knew which one it was but maybe not. Thanks for your help
     
  7. SamVinyl

    SamVinyl

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    Actually there’s 4, but only 3 have a black plastic tap
     
  8. ianmcd

    ianmcd

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    post a pic of the pipes below the boiler
     
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  9. SamVinyl

    SamVinyl

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  11. SamVinyl

    SamVinyl

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    I got a gas engineer booked to look at it
     
  12. ianmcd

    ianmcd

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    That is the cold water inlet valve

    Inked1sexo8x_L2.jpg
     
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  13. SamVinyl

    SamVinyl

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    An update. It was the hall sensor, they ordered the part and fitted it.
    It has lasted for two weeks and the same problem has happened again. Exactly the same symptoms as before.
    Could it be that the second hall sensor has become faulty?
     
  14. ianmcd

    ianmcd

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    If it is I would be looking for a water drip somewhere dripping on to the sensor
     
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  15. SamVinyl

    SamVinyl

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    would I see a drip dropping to the floor if it was ? it does seem a bit odd why it’s happened again though.
     
  16. ianmcd

    ianmcd

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    depeds on how big the drip was, hall sensors are usually pretty reliable , there isnt much about them to go wrong
     
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  17. SamVinyl

    SamVinyl

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    Thank you
    The engineer is coming out again tomorrow, hope they can fix. The boiler is only about 8 years old. I guess they can develop faults.
     
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