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Two Way light switch fault

  • 15-01-2021 6:22pm
    #1
    Borzoi
    Registered Users, Registered Users 2 Posts: 2,876 ✭✭✭


    We've a big kitchen with 6 lighting circuits, all on 2 way loops, with switches ( 6 gang) at each end of the room.
    After 10 years one circuit has developed a fault. If we turn on switch 4, of either bank, all other lights go out. And about 30secs later the fuse trips.
    I took out all the bulbs on switch 4, but no change.
    I'm assuming now that the fault is in one of the switches, and needs replacing.
    Anything else likely?


Comments

  • #2
    alan4cult
    Registered Users, Registered Users 2 Posts: 1,583 ✭✭✭alan4cult


    Are the lives looped into the switch or to the lights fittings? It sounds like it's at the switch, given it takes out all circuits.

    If looped in at switch, do you know which switch the incoming live is at and then the other switch will be to the lights? I would start there and remove the live to circuit 4 and check if all other still operate.

    The live could also be coming in at both but would be a bit strange.


  • #3
    Borzoi
    Registered Users, Registered Users 2 Posts: 2,876 ✭✭✭Borzoi


    alan4cult wrote: »

    If looped in at switch, do you know which switch the incoming live is at and then the other switch will be to the lights? I would start there and remove the live to circuit 4 and check if all other still operate.
    .

    Thanks. Not sure, but I'll work on the basis that one end is nearer the fuse box, and so more likely. Thanks for the tip.


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