Removed one light fixture, now the other is over heating!


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Old 12-19-16, 04:14 AM
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Removed one light fixture, now the other is over heating!

Mod note: Member is in the UK.

I have two ceiling light fixtures in my living room. I have removed one which is faulty and now the second has over heated and stopped working.

Both are identical light units and connect to a double dimmer switch, there are seperate dimmer switche buttons for each light unit so you can turn one on idependently of the other.

Would removing one cause an overload on the second? surely it's not different to just not switching on the other unit?


Thanks for your help.


Richard
 

Last edited by ray2047; 12-19-16 at 04:54 AM.
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Old 12-19-16, 04:28 AM
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Old 12-19-16, 04:41 AM
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Thanks Chandler!

Apologies for the double post, I had already posted in the AC/DC section, then spotted the one specifically for lighting!

I've updated my profile. I'm in the UK.

Pics attached are of the ceiling, with the removed light unit and the second one. Another of the dimmer switch unit and then the connector block I have removed the existing light unit from.

Any further info or question, please let me know!


Thanks for your help!


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Old 12-19-16, 04:52 AM
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Answer based on very limited and perhaps incorrect knowledge of British wiring.

Please explain what you mean by overheated and stopped working. That is not something that is likely happens on a North American circuit so maybe it is your terminology. Do you mean a fuse built into the light burnt out? If this is very old wiring? Is it a ring circuit?
 
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Old 12-19-16, 04:59 AM
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Hi Ray,

The second light unit, worked for around an hour after the first was removed. This then stopped working. When I touched the main central unit of the light it was very hot and the light would not turn on again. Now it has coole down it is working again.
 
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Old 12-19-16, 05:37 AM
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I've inspected the second light unit, no sign of any damage or any reason ifor it not to work. I have switched it back on and it buzzes noticably. This was not the case before I removed the first light unit.
 
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Old 12-19-16, 05:42 AM
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What kind of bulb, incandescent, halogen, compact fluorescent bulb, or LED?
 
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Old 12-19-16, 07:11 AM
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Halogen capsule bulbs.

I have turned the light on again. It works for around an hour, the transformer unit gets warm but still touchable, it then dims and turns off. Once it has cooled down, it works again.

I removed the first light unit as it was damaged by a water leak, this did not spread as far as the other light unit.
 
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Old 12-19-16, 07:47 AM
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Could it be the dimmer switch that is causing the problem as the light unit does work? Maybe it wasn't over heating after all?
 
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Old 12-19-16, 07:53 AM
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Could it be the dimmer switch that is causing the problem
As a test replace the dimmer with a regular on off switch. If it works without a problem for a day or two try a new dimmer.
 
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Old 12-19-16, 11:31 AM
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There might be a temperature overload switch in light fixture that is opening when light gets hot. Don't know why it is happening.
 
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Old 12-19-16, 11:58 AM
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Thanks Pugsl, I thought this too, but I can't see any reason for the second light unit having a fault. I need to swap out the switch and the light units to see.
 
 

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