Tester showing reversed polarity on receptacles
#1
03-12-15, 01:00 AM
Tester showing reversed polarity on receptacles
At my buddy's house he has a few receptacles that are showing a reversed polarity when the tester is plugged in. The light pattern on the tester is indicating this. Neutral and hots are on proper screws. Any idea what else could be causing this issue?
Thanks
Thanks
#2
03-12-15, 01:18 AM
Group Moderator
You're saying the white and black wires are on the proper side of the receptacle.
Possibly the black and white wires are reversed before they get there.
Does a table lamp work when plugged in ?
You would need a meter at this point to check the white wire to ground and the black wire to ground for voltage.
Possibly the black and white wires are reversed before they get there.
Does a table lamp work when plugged in ?
You would need a meter at this point to check the white wire to ground and the black wire to ground for voltage.
#3
03-12-15, 06:12 AM
On some plug in testers a bad ground can show up as hot/neutral reverse. You can test this by plugging an extension cord in a receptacle with a known-good ground and test voltage between the ground in the extension cord and each of the prongs of the unknown receptacles.
