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Old light switch wiring

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  • 29-10-2018 2:05pm
    #1
    cav93
    Registered Users Posts: 53 ✭✭


    I'm trying to install a new 1 way dimmer light switch, but I've came across a problem. 2 wires are same colour, with no labels inside the old switch, which is an old black volex, maybe 40 years old. Has anyone ever worked with one of these and be familiar which wire is which. Attached are pics of the old switch. Thanks.


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    #2
    meercat
    Registered Users Posts: 4,745 ✭✭✭meercat


    On your new dimmer switch
    One wire into com
    Other wire into L1

    It shouldn’t really matter which cable goes into either

    Make sure to turn power off when doing this

    You should use a plastic dimmer switch as a metal one will require an earth wire


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    #3
    cav93
    Registered Users Posts: 53 ✭✭cav93


    meercat wrote: »
    On your new dimmer switch
    One wire into com
    Other wire into L1

    It shouldn’t really matter which cable goes into either

    Make sure to turn power off when doing this

    You should use a plastic dimmer switch as a metal one will require an earth wire

    Thanks got sorted, turns out the dimmer switch was rubbish, blew my bulb, so I just put on a normal switch again then.


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