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Just fitted Drayton Wiser Hub, doesn't seem to be switching on boiler

Discussion in 'Plumbing and Central Heating' started by Mega, 25 Oct 2019.

  1. Mega

    Mega

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    Hi,

    So I just bought a Drayton Wiser kit and fitted the Hub. My problem is that when I activate boost to test the system the gas light on my boiler doesn't light up - which I assume means it hasn't turned itself on...

    Here are some pics of my wiring and the boiler, along with a pic of the Drayton wiring guide.

    [​IMG]
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    [​IMG]
    [​IMG]
     
  2. stem

    stem

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    From the drawing you posted, you can see that terminal 3 of the Wiser is the 'ON' connection that goes to the boiler to signal it to light up.

    w.JPG

    Except you don't have a wire connected to terminal 3.....

    Plate.JPG

    ....so it won't work
     
  3. Mega

    Mega

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    Thanks, just figure this out exactly as you posted. Whoever installed the previous wall plate (non-standard) used the ground wire as a switching live, which I attached to the ground...

    Just wiring it up correctly now.
     
  4. EFLImpudence

    EFLImpudence

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  5. ianmcd

    ianmcd

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    It wasnt a ground as you call it /Earth wire, it was the switched live, never go by wire colour in a heating system
     
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  6. Mega

    Mega

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    Lesson learned!

    Thanks.
     
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