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Please Help. Electricity out in one room - Breaker not tripped.

Please Help. Electricity out in one room - Breaker not tripped.

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  #1  
Old 03-07-18, 11:01 AM
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Please Help. Electricity out in one room - Breaker not tripped.

Hello all,

I hope someone can diagnose this for me.
One circuit in my house isnt working. No GFCI on circuit, Switched out breaker, tested all outlets for lose connections with multimeter.
The ground to Hot shows 120.6V and the neutral to hot shows 120 V with no load. As soon as i turn on a light, everything stops working. still shows 120.6V ground to hot but 0.0 neutral to hot.

Any ideas??
 
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  #2  
Old 03-07-18, 11:19 AM
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Welcome to the forums.

You have an open/problem neutral connection.

Do you know everything that is on that circuit ?
Is there anything else on the same circuit still working ?

Problems like this usually come down to loose connections on a receptacle. In particularly when the push-in connections are used on the back of the receptacles.
 
  #3  
Old 03-07-18, 11:23 AM
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no push in connections. I have checked all the recepticles. Could it also be a light fixture wire that has come lose? The only thing i hanvnt checked are two lights on the ceiling in the closet.
 
  #4  
Old 03-07-18, 11:48 AM
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It wouldn't be the light fixture itself but it could be a neutral connection in that box is loose.
 
  #5  
Old 03-07-18, 11:50 AM
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Thanks, I'll pull down those fixtures and check the connections.
 
  #6  
Old 03-07-18, 11:53 AM
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Depending on how the circuit is wired.... there could be neutral connections in the switch boxes too.
 
  #7  
Old 03-07-18, 12:14 PM
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There is three switches. One for the main ceiling light, one for closet lights and one that controls top half of one outlet.

If the closet fixtures aren't the issue, i'll check the neutral connections in the switches.
 
  #8  
Old 03-07-18, 12:20 PM
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Occasionally it's the connection to the neutral bus in the main panel. Other than that if this is an older house I'd start looking for a hidden or otherwise unexpected junction box on this circuit perhaps from a previous remodel or repair. Basements, crawlspaces, attics are all reasonable candidates; perhaps behind large furniture pieces or built in shelves/cabinets.
 
  #9  
Old 03-07-18, 01:34 PM
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Problem resolved! Thank You.

After checking all the light fixtures and finding no issue i decided recheck all the recepticles. I pulled them out one by one and unhooked the wires one by one. finally came accross a neutral that was black and melted on the end. couldnt see it when it was attached. i replaced the outlet with a new one and the lights came on. So happy! Thank you
 
  #10  
Old 03-07-18, 02:02 PM
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Good job but for future work the receptacle was probably okay. Just the wire needed to be redone.
 

Last edited by ray2047; 03-07-18 at 03:26 PM.
  #11  
Old 03-07-18, 02:03 PM
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If the connections are using the push in terminals... they should be moved to the screw terminals for a more reliable connection.
 

Last edited by PJmax; 03-07-18 at 03:22 PM. Reason: typo
  #12  
Old 03-09-18, 01:04 PM
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What would cause the wire to heat up and melt the plastic around it if the receptacle wasnt faulty?
 
  #13  
Old 03-09-18, 01:56 PM
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The heating is usually caused by a loose connection.
 
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