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Wiring immersion heater switch

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  • 01-12-2022 3:30pm
    #1
    Up Donegal
    Registered Users Posts: 1,236 ✭✭✭


    Hi.

    How is this switch meant to be wired?

    I thought it would be the same as the one I'm replacing and that I could just swap the wires over one at a time. But the new switch has different terminals

    **EDIT** I've attached a photo showing how the cable from the heater was wired into the old switch.

    20221201_145019.jpg


    Thanks in advance.

    20221201_140804.jpg
    20221201_141213.jpg
    20221201_142137.jpg
    20221201_142440.jpg


    Post edited by Up Donegal on


Comments

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    #2
    kirk.
    Registered Users Posts: 4,957 ✭✭✭kirk.


    It needs a link between live out and common

    Then check bath and sink are wired correctly and connections are tight



  • Options
    #3
    kirk.
    Registered Users Posts: 4,957 ✭✭✭kirk.


    They're not a great design of a switch

    Almost impossible for the handyman to get them right



  • Options
    #4
    Up Donegal
    Registered Users Posts: 1,236 ✭✭✭Up Donegal


    https://www.boards.ie/discussion/comment/119944761#Comment_119944761

    So, just to confirm:

    1 - The brown live and blue neutral supply wires go to the L IN & N IN terminals (bottom right) respectively

    2 - The brown and blue wires from the heater go to the L OUT & N OUT terminals (top right) respectively.

    3 - Link between L OUT and COMMON with a short piece of the correct wire.

    4 - Which terminal is the black wire from the heater attached to? On the old switch, the black wire was attached to the 'BATH' terminal.

    5 - What are the two bottom left terminals - L1 & L2 - for?

    Thanks in advance once again.



  • Options
    #5
    kirk.
    Registered Users Posts: 4,957 ✭✭✭kirk.


    No , it would be better to have someone fit it tbh

    Looks like that heaters been in a while , the old black/blue bath/sink wiring

    Might need IR testing and RCD protection



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