Discussion Starter · #1 ·
I replaced some outlets and the old wiring is all black and I'm pretty sure I reversed the hot and neutral on some of the plugs. If there is no ground in a plug will those 3 prong testers still tell me if I have the wires reversed? Also, on 2 of the GFCI's I installed my pen tester goes off as soon as I touch the cover. If I get a 2 prong neon tester how would I test whether wires are reversed with that? Any suggestions are appreciated.