Ceiling light fixture puzzle

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Old 08-15-18, 06:42 PM
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Ceiling light fixture puzzle

Light fixture has the two pin GU24 socket. After sitting all night, off, in the morning it goes on fine but after 10-15 mins, shuts off. Changed to a new cfl bulb, same story. It's getting power, the socket itself has continuity, but I think shuts off after a short period. Does the socket have a circuit? Is it over heated? It's about 12 years old too.
 
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Old 08-15-18, 06:47 PM
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It sounds like the ballast is shutting down on overheat. Did you use the correct wattage bulb ?
 
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Old 08-15-18, 07:06 PM
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Tried a new cfl 13w bulb, again, worked for a brief time. Do these sockets have a ballast?
 
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Old 08-15-18, 07:19 PM
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GU24 is line voltage, so no ballast in the fixture. There might be a thermal protection switch in fixture, however. Is it recessed?
 
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Old 08-15-18, 07:44 PM
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That's right...... the ballast is part of the lamp. I'd agree on a thermal switch.
 
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Old 08-15-18, 07:46 PM
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Ok, tested light fixture on outlet, it works. I have two ceiling fixtures, both work off of a single pole simple switch, one ceiling light continues to work, no power getting to the troubled one, replaced wall switch, same, no power getting to the troubled one. What the hell would cause that?
 
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Old 08-15-18, 09:34 PM
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You plugged in a ceiling light to test it. How did you do that ?
Was the fixture oriented the same way it would have been on the ceiling ?
If it's a thermal safety tripping it would be from excessive heat or the safety is worn out.

If it's not that..... the socket is defective and the heat cause one of the contacts to loosen.
 
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