I have a dead light fixture that is at the end of the circuit. It is wired like this. http://imgur.com/jPYQUAk
I have been troubleshooting for the past few weeks and I cannot find the break or loose wire.
Any help or additional steps of troubleshooting would be much appreciated. I really don’t want to start breaking drywall and plaster if I don’t have too.
About 4 weeks ago the light in the room flickered for a day or two then stopped working. Thought it was the bulb. Swapped bulb, still no light.
Checked the light switch
with a multimeter, light switch is functioning correctly.
Checked the voltage at the light switch and there was very little to none.
Pulled the fixture down and checked the continuity between the switch and the fixture and continuity is good. No breaks in those wires. See picture of wiring
Checked the incoming/source wires and there is no voltage coming into the fixture.
I pulled all the outlets
out in the room to see if there was any loose wires. All outlets are working and all wires are tight. None of the outlets are using the back holes for wiring.
I attempted to use my tone generator to trace the wire but this proved worthless. The tone generator is loud everywhere I go within 1-2 rooms of the tone box. (Power was off when I did this)
I made an outlet continuity tester to see if I can find the source cable in any of the outlets near by. No luck….. (Power was off when I did this)
I checked all outlets within 1 room above and below this room/light switch and all of them are working, tightly connected with no issues.
All outlets and lights in the house are working no issues or flickering.
I am at a loss on this one. Help.
Also, I am in the US. The home was built in 1952. It is copper wiring with cloth/braided insulation
. Room in question is in the older part of the house.