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light switch

Discussion in 'Electrics UK' started by low drains drifter, 6 Jun 2021.

  1. Astra99

    Astra99

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    It looks like the the first picture is of an Intermediate switch, and the second a 2-way. Which is the old, and which is the new? IIRC intermediate switches "cross over" the four terminals, so would need the red and black cables connected top left-bottom right or top right-bottom left.
     
  2. sparkwright

    sparkwright

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    Either way, didn't he join the wires at the switch to see if it the lamp worked?

    As Taylor says, you really need a two probe multimeter. You cn get them in Wilko for a tenner. We'll tell you how to use it.

    You see, the voltstick you are using will not tell you if a neutral is present, or what the actual voltage is. Voltsticks have their uses, but they do't give you enough info to diagnose most faults.
     
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  4. EFLImpudence

    EFLImpudence

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    They do one way - cross X, the other way - straight ll.

    I have read that several times and still can't figure out what you mean.

    As long as the two wires from one cable are at the top and the two wires from the other cable are at the bottom, it doesn't matter which way round the colours are - although it seems logical (not sure why) to fit one colour on one side and the other colour on the other side.
     
    Last edited: 13 Jun 2021
  5. EFLImpudence

    EFLImpudence

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