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I went to install a 15A 120v plug in an old 1960s aluminum wired building. When I put my plug tester in to check I got “open ground signal”. Since I didn’t want to rerun new wire I tried changing to a 15a gfci but still got the same “open ground signal” and when I tried to test the gfci it wouldn’t trip.
What could be the issue?
 

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Super Moderator Beam Me Up Scotty
Elechicken
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Please see the link below. A profile is required here at Electrician Talk. Please make sure to include occupation and general location.

 

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Lol, really
 

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ELECTRICIAN!!!
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Have you tried checking your service and service equipment? Since that what this forum is named.
 

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Super Moderator Beam Me Up Scotty
Elechicken
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changing to a 15a gfci but still got the same “open ground signal”
I'm sorry, but even a first year apprentice should know this...

Thanks for posting on ElectricianTalk.com. However, working with electricity and electrical systems can be unsafe if not done by a professional licensed electrician. The moderators of this site would like to advise you to contact a professional electrician in your area.

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