The house is 50+ years old. The 60 amp service was updated today to 100 amp. The distribution wiring was not replaced, but with the exception of one receptacle on the 2nd floor, all tested grounded. 4 receptacles in the house were reversed polarity, which indicates to me that a non-pro had his hands in some “upgrades”.
When I tried the ceiling fixture in the 2nd floor bedroom the lights didn’t work. Thinking that the bulbs were both blown, I removed the glass diffuser, and tested the bulb sockets with a non-contact voltage tester. Sure enough they were powered… but so was the metal light fixture. No problem - I’ve seen this before. Maybe the ground in the fixture wasn’t used / properly used. Maybe the installer used electrical tape rather than Marr connectors and friction wore through the tape to electrify the fixture. I turned off the light switch. Power to the bulb socket off… fixture still hot. Maybe the switch was wired to the neutral wire, and power was being sent to the fixture first…on a whim, I tested the screws holding the cover plate on the switch. It too was hot - no matter whether the switch was in the on or off position. An anamoly no doubt. Write it up and move on…but no.
I found exactly the same situation in the ceiling light in first floor bedroom, the closet light in the second - first floor bedroom. Fixtures and light switch hot no matter what position the switch is in.
1 of 4 ceiling lights in the basement (pull chain switch) had the same characterists.
And here’s the weird one. In the kitchen there were two ceiling fixtures. Between the two was a decorative chain with the electrical wire strung through to links to connect to the second fixture. Kitchen fixture one was live, but kitchen fixture two was not.
I defered responsibility to a licenced electrician, but I’m pulling my hair out trying to find an answer that will set my mind at ease.
Anybody got any suggestion?
Oh, also this house had a 12 by 25 addition build on the back with no foundation (and obvoiusly no permits). I dug down below the wall a foot or so and along it for 2 feet and the only thing I found under the completely rotten sill plate was dirt. So the handymen reigned at this house.
Can anybody comment on the electrical - I’m truly stumped.