Grounded outlet tester - lights all on

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Old 05-22-08, 07:50 PM
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Grounded outlet tester - lights all on

When I test this outlet with a plug-in tester - (mine has 2 yellows and a red light), all lights are on, when a proper circuit should only light up the 2 yellows. What does this mean? Thanks
 
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Old 05-22-08, 08:24 PM
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What does the legend say on top of the tester?
 
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Old 05-23-08, 07:26 AM
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The legend does not show that combination
 
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Old 05-23-08, 08:42 AM
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Defective tester maybe??
 
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Old 05-23-08, 09:37 AM
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For a working tester, that usually means that there are two hots, or at least a major problem.
 
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Old 05-23-08, 09:39 AM
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An analog multimeter and a little knowledge on how to use it may actually be better then a plug in tester. But TJMO.
 
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Old 05-23-08, 10:39 AM
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Originally Posted by ray2047 View Post
An analog multimeter and a little knowledge on how to use it may actually be better then a plug in tester. But TJMO.
Agreed - but on a board like this, I think we all sometimes wish posters would have even such a minimal amount of equipment as a plug-in tester!
 
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Old 05-23-08, 12:29 PM
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My first thought is that the tester is bad. Those simple plug-in testers basically test between the 3 prongs (H-N; N-G; H-G), similar to what you would do if you had a 2-wire neon tester.

Does the tester show this result on all receptacles you plug into?

On second thought, it could be a floating (disconnected) ground . If you can, I'd try to get your hands on a simple 2-wire neon tester, that would easily resolve the question.
 
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Old 05-28-08, 08:11 AM
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The tester works fine on all correctly wired oulets. The problem is, this is an old house (not mine) and all I know is that there is a white, black and a "ground" coming into this box from inside the wall but I don't know if they are correct. The outlet does work. I'm going back there today and I'll check the voltage. Thanks.
 
 

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