Smeg oven tripping RCD

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  • June 4, 2019 at 4:45 pm #95954
    scarrj
    Participant

    Have a Smeg oven model C7GPX8, not sure manufacture date, that is tripping the RCD as soon as the function knob is switched one way or the other. The hobs are still working completely fine and I have removed and checked all the elements and none of them are faulty. At this point I am unsure of the problem, any advice would be appreciated.

    June 4, 2019 at 11:32 pm #461842
    electrofix
    Moderator

    still sounds like an element

    one of the elements has got an earth fault. you would need to check the element to earth with a multimeter or megger but if you have neither .

    try either
    a disconnecting all the elements, make sure all wires cant touch , then turn on and see if it trips. If yes cant be elements. If no reconnect the elements one at a time and see when it starts tripping

    or disconnect one element at a time and see if it stops tripping

    Dave

    June 5, 2019 at 7:59 am #461843
    scarrj
    Participant

    When I disconnected all the elements I tested them with a multimeter and none of them gave a faulty reading.

    Jack

    June 5, 2019 at 8:29 am #461844
    electrofix
    Moderator

    but a multimeter is only 9 volts the mains is 230v bit of a difference. if your testing insulation properly you need a 500v meter. I have had elements that measure ok on a multimeter but still blow the trip

    in order of likelihood

    elements
    chaffed wires
    fan motor
    lamp holder
    other switches

    Dave

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