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Turning on extractor fan also turns on a light!?

Discussion in 'Electrics UK' started by ax222s, 25 Sep 2021.

  1. ax222s

    ax222s

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    Hi guys,

    Ive got a weird electrical issue. The grill works about 30% of the time (sometimes it heats, most of the time it doesnt). An engineer fitted a new element and thats made no difference.

    After a bit of fiddling, it seems that when I turn the extractor fan on, one of the under cabinet lights turns on also! Then I turn off the grill and the light went off. I turn the grill back on and the light momentarily came on again.

    So its all a bit odd!

    Turning on extractor fan also turns light on:

    IMG_0094.jpg

    Theres a cable from the light which goes above the cabinets and a junction box(?)

    IMG_0092.jpg

    where it then goes into a cabinet:

    IMG_0091.jpg

    What could be causing this? I think it may explain why the grill work occasionally.

    Ive tried various combinations of turning things on/off to see if theres any rhyme/reason to it. The only thing that happens consistently is turning the extractor fan on also turns the light on.

    What could it be? How can I diagnose?

    Thanks
     

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  2. CBW

    CBW

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    Does seem like dodgy wiring, but you probably need a good electrician to resolve this one. Could be being triggered by a switch live?
     
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  4. ax222s

    ax222s

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    Do you think its dangerous?
     
  5. CBW

    CBW

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    Hard to comment as I can’t see the wiring, when was the last time you had an installation condition report or periodic inspection?
     
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  7. ax222s

    ax222s

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    I had an ECR 2 or 3 years ago. Ill need to check my paperwork.
     
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