Blinking ceiling can light

Discussion in 'Electrical and Wiring' started by TGMcCallie, Jan 29, 2019.

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  1. Jan 29, 2019 #1

    TGMcCallie

    TGMcCallie

    TGMcCallie

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    I have can lights installed in my ceilings. One of the can light comes on and then blinks and immediately goes out. I have replaced the bulb with new LED bulb but with same problem.

    Do you think this is the problem with the fixture or the dimmer switch. The led bulb is dimmable.

    I don't know the inner working of a can light. Does it have just wires or is there a transistor or something in the can light that would cause the problem? I have not tested the dimmer switch yet.

    What is most likely problem, the fixture or the dimmer wall switch.

    The fixtures are Halo brand.


    Thanks
     
  2. Jan 30, 2019 #2

    Snoonyb

    Snoonyb

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    Is that the only fixture controlled by that dimmer.

    If not, it's likely a bad connection in the fixture.
     
  3. Jan 30, 2019 #3

    afjes_2016

    afjes_2016

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    Is this a new installation or have you had this set up for some time and this just started to happen.

    Did you make any other changes to this set up before this started to happen other than changing the bulb.
     
  4. Jan 30, 2019 #4

    Michael Armstrong

    Michael Armstrong

    Michael Armstrong

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    Most can lights have a thermal cutout switch in them; that could be bad.
     
  5. Jan 30, 2019 #5

    Sparky617

    Sparky617

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    That would be my idea as well. An LED should not overload a properly working thermal cutout.

    Does it start flashing immediately? How long is it on before it flashes and what is the time frame for it to be off? A properly working thermal cutout will take a few minutes to cut the light off and then a couple of minutes for it to cool down enough to come back on. This happens when you put in too large of an incandescent bulb in the fixture. Since LEDs use a fraction of the power of an incandescent and don't generate much waste heat I doubt you could overload a good thermal cutout with an LED.
     
  6. Jan 31, 2019 #6

    kok328

    kok328

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    Process of elimination.
    What happens when you put a incandescent bulb in the fixture?
    What happens when you put the LED in a normal lamp socket?
     
    Sparky617 likes this.

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