Sparking light switch cover after replacing light fixture


  #1  
Old 09-10-18, 10:13 AM
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Question Sparking light switch cover after replacing light fixture

Yesterday I replaced a ceiling light that was working fine, no issues. New one powers on properly, looks fine. As I'm putting the metal wall plate back on I started hearing humming in the gang box and saw some small sparks from the cover screws to the cover, that got my attention. Inspected the wiring, pulled the light fixture and confirmed wiring looked good there, put it back together with same results. Put a different light fixture up, no noise, no sparks. Any idea what is happening here?

It's a three gang box with two circuits.

Thanks
 
  #2  
Old 10-01-18, 02:02 PM
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No thoughts? Issue went away with the new fixture, so I'm guessing there was a short in the other one. I don't have much experience with shorts, seemed like odd behavior.
 
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Old 10-01-18, 02:30 PM
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Remove the light bulb. With the suspect light fixture sitting on the floor or a table, measure continuity between hot terminal (or black wire) and frame (or bare wire). Repeat for neutral terminal (or white wire) and frame.

(Use the Ohms or Resistance function of a multimete..)

If you get nearly zero ohmsor have continuity then you have a defective fixture.
 
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Old 10-01-18, 02:32 PM
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I like that, I'll give it a try.

Thanks.
 
 

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