120 Volts hot to ground and 120 volts ground to neutral. 0 volts hot to neutral

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vgapicella

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Pennsylvania
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Trying to trouble shoot a problem and was wondering if anyone every has every ran into this issue. Having a heck of a time locating the issue been taking everything apart looking for where the issues comes from. Only issue is that the entire apartment is concrete and its impossible to trace wires other then unhooking stuff to find out where it comes form.
 
vgapicella said:
Trying to trouble shoot a problem and was wondering if anyone every has every ran into this issue. Having a heck of a time locating the issue been taking everything apart looking for where the issues comes from. Only issue is that the entire apartment is concrete and its impossible to trace wires other then unhooking stuff to find out where it comes form.
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Where are you taking measurements from? A panel, branch circuit, etc?


( if it is a branch circuit) When your measuring from neutral To ground are you unsplicing the neutral under a operating ?(circuit and load being energized)
 
I took measurements from the panel and then shut the circuit to figure out what all was on it. Then I pulled out all the devices on the branch circuit and took readings at each device as they were hooked up. Everything upstairs was reading proper but somewhere between upstairs and down something happened because everything down stairs was reading 120 hot to ground and 120 neutral to ground. They had a handyman in there before me trying to fix the issue and I think he was switching a lot of things around.
 
Alright so just keep searching until I find the open neutral? They had somethings plugged in upstairs like a Tv and chargers for phones.
 
Divide and conquer. Figure out approximately where you are on the circuit, and guess where the midpoint between you and the panel might be. Check things there. If it's fine there, start working away from the panel. If it's still got issues, start working towards the panel. Repeat the process until you find the problem.
 
My son had similar problem at his new construction home. TV location lost power, after he plugged in his Christmas tree lights on another wall in same room. TV location 0 to neutral, 120 to ground.

Removed cover plate at tree, and as I was pulling the receptacle out, I heard a slight pop. I turned off the breaker and removed the wires from the stab in holes and terminated them all on the screws.
Back to normal.
The receptacle at his tree was securely mounted, and all he did was insert the plug. It’s not the first time I have seen this. It makes me uneasy about using stab in, and personally I don’t when I install anything that has it.
 
Some neglect to check receptacle that is "working". Sometimes it is the "outgoing conductor" on the last working receptacle in the chain that is where the failure occured.
 
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