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Neon light switch permanently illuminated (for loft light)

Discussion in 'Electrics UK' started by busydad, 11 Mar 2017.

  1. busydad

    busydad

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    Hi all,

    I have a loft light switch with neon indicator light. The switch itself works perfectly fine but the neon indicator is permanently illuminated, whether the switch is on or off. I am not sure if it designed to be permanently illuminated or if it is wired incorrectly.

    I have taken a couple of photographs of the wiring (plus the switch itself) as best I can without actually taking the wires out.

    I am fairly confident with very basic electrical challenges such as bog standard 1 way switches, sockets, light fittings but I am a little perplexed with this one!

    Thanks in advance.
     

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  2. NotSoNewboy

    NotSoNewboy

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    I'd suspect that the supply has been connected to the load side of the switch
     
  3. busydad

    busydad

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    Is there a reasonable way of identifying which is the offending live wire to be moved or would I be best placed to get a professional in?
     
  4. flameport

    flameport

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    With the power off, you need to swap the twin red wires with the single red, then do the same with the blacks.

    Remove the single red wire from the terminal, then move the two red wires to where the single red was, and put the single red where the two wires were.
    Repeat with the black wires.
    It is essential that the two red / two black that are together now remain that way. You may want to mark the single wire with a pen or label first.
     
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  5. busydad

    busydad

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    Thanks will give that try, I thought doing that would reverse the switch (i.e. off is on and vice versa) but it obviously isnt the same as a normal switch. So basically so long as I keep the same twin neutrals and twin lives with each other I cant go to far wrong....
     
  6. busydad

    busydad

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    Just to follow up, the wire switch around worked a treat.

    Thanks for your help.
     
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  7. 333rocky333

    333rocky333

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    Not essential but I would have liked to see an earth link from the spare vacant earth terminal on the switch back to the box
     
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