That’s the question. When cooking and then pouring the water into the sink, for 10 seconds the lights on the counter turn on. These lights are usually broken and refuse to turn on manually. The lights are a strip of little LED bulbs glued on the cupboard .

i have a theory but i am not an electrician

EDIT : case solved by GIGACHAD (that’s his nickname)

  • chicken@lemmy.dbzer0.com
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    7 hours ago

    I have had problems with the drain plumbing downstream of my kitchen sink, because the heat causes the pipes to expand slightly and be longer. My theory is there is some loose wiring in the walls, and your drain pipes press on the loose wiring until they cool down again.

  • reddig33@lemmy.world
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    17 hours ago

    You’ve got an IR sensor somewhere that is supposed to turn the lights on when it senses a person’s presence. The heat from the boiling water is tripping sensor.

    I have a similar sensor in my faucet. It always turns the faucet on when I pour boiling water into the sink.

    That’s my guess anyway.

    • NeatNit@discuss.tchncs.de
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      17 hours ago

      Of the answers I’ve seen this is the one that makes most sense.

      Of course, the real answer is that the sink is haunted.

    • expatriado@lemmy.world
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      11 hours ago

      since the light only turns on after introducing a warm inanimate object , this means op is cold blooded lizard people

    • wizzor@sopuli.xyz
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      15 hours ago

      Some LED strips intended for kitchens have a feature where you can place your palm on the strip to turn it on or change the brightness. This sort of thing is usually achieved with backscatter IR, which may also be triggered from water vapor. Try pushing your hand against the ends of the strip to invalidate this hypothesis.

  • gigachad@sh.itjust.works
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    15 hours ago

    I have an led strip installed next to my oven at a similar place. There is a larger “button” that reacts to touch, you can also dim it. When I am cooking, the steam of the boiling water turns dims that light on and off, it’s pretty annoying but also kind of funny.

    • make -j8@lemmy.worldOP
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      6 hours ago

      oh. damn, you kinda took out the fun & mystery lol You are right I just found that button and yes it does dim lights on/off. So this is the final explanation

  • shovingleopardnsfw@lemmynsfw.com
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    16 hours ago

    I’m gonna guess the steam is causing a broken circuit connection in the led strip to briefly connect. This strips often have a thin wire running the full length of the strip and that can break when the strip is bent. If the steam is heating the strip it could be causing the wire to briefly expand, closing the small break and turning on the lights.

    • hddsx@lemmy.ca
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      15 hours ago

      You should still check ground, but if it’s repeatable with hot water and not cold water, it’s probably because of the heat. To remove water from the equation, you can probably use a heat lamp.

      • Death_Equity@lemmy.world
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        17 hours ago

        I’m guessing you have an issue with your neutral loop and/or maybe a junction box fastener touching a water supply with a bad wiring job.

        You can use a meter to get a better idea of what is happening, but I would suggest you seek a licensed electrician because this sort of issue could be indicative of a big dangerous problem.

  • IWW4@lemmy.zip
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    17 hours ago

    I suspect the vibrations of the pouring water are making something make contact with something else and that is turning on the LEDs.

    Test this hypothesis with the same pot full of cold water.

    When thee red bulbs in My under cabinet lighting are staring to die I have found the need to be tapped to turn on. I replace them and the new ones work fine.