Tester Says Wiring Correct, Multimeter Says Otherwise


  #1  
Old 05-27-23, 06:05 PM
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Tester Says Wiring Correct, Multimeter Says Otherwise

I have an outlet that isnít working. I pulled it out. I have two black, two white wires and a ground. Plugged in my tester and the two lights indicating correct lit up. I hit it with a multimeter and nothing . . . . so something was powering to get the tester to light up. When I use my probes to black and ground, I get 120v. This place has always baffled me with the electrical. What the heck is going on here? How do I remedy? Both black wires are hot.
 

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05-28-23, 04:34 AM
joed
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You have an open neutral somewhere. Most common cause of this is back stab push in connections. Check other devices on the circuit and move any back stabs to the screws.
 
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Old 05-27-23, 06:10 PM
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What do you get when you put one probe on black and the other on white? Measure directly from the wires, not the device.
 
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Old 05-27-23, 06:13 PM
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What does your tester say when you plug something like a lamp into the second receptacle and turn it on?
 
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Old 05-27-23, 06:26 PM
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I get nothing on the multimeter when black to white.
 
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Old 05-27-23, 06:30 PM
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@joed when I do that I get ďhot and ground reversedĒ lit up.
 
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Old 05-27-23, 11:33 PM
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So:
black - ground = 120V
black - white = 0V
white - ground = ?? V

Even when a multimeter may have some % +/- What is the exact readings?
What kind of a meter did you use?
What happens if you put a load between black and ground?
What happens if you put a load between white and ground?
 

Last edited by d_s_k; 05-28-23 at 12:02 AM. Reason: spelling + adding questions
  #7  
Old 05-28-23, 04:34 AM
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You have an open neutral somewhere. Most common cause of this is back stab push in connections. Check other devices on the circuit and move any back stabs to the screws.
 
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  #8  
Old 05-29-23, 12:43 AM
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I agree is joed. This is where you should start.
 
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  #9  
Old 05-29-23, 10:38 PM
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I suggest checking the wires in this outlet, as well as the ones upstream.
Neutrals that are pigtailed together may also fail.

It's odd you have only one outlet that fail; the downstream outlets (or lights) should also fail.

BTW you cannot rely on outlet tester to tell you what's wrong because sometimes there are multiple possible reasons for one symptom and the tester only tells you the most likely one.
 
 

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