I have some track lights that run in my upstairs bedroom. A while ago they stopped working, I could flip the switch but there was no light. So I get around to doing some investigating and grab my non-contact meter and there is definitely voltage to each track. Next I take out the multi-meter to test the AC voltage. I was getting 84v AC which is too low, so I am thinking that maybe I have a bad neutral connection or something.
I head down to the basement to start flipping the breakers. I didn't have my entire house mapped at the time so I started turning off one breaker at a time and then running back upstairs to check the voltage with the non-contact meter. Well sure enough I tried them all and never got the power disconnected from the tracks. I then proceeded to turn of one whole side of the breaker box, go and check the voltage, and there is no voltage at the track. I figured I must have made a mistake when checking the 40 individually and proceed to turn the breakers on two at a time so I don't have to run up and down stairs so often. Finally I get power back to the tracks, I go downstairs and turn one of the two breakers off, and find that I still have voltage to the track. I think I have isolated the correct breaker until I turn the isolated one off and the one next to it on. I check the tracks again, and I still have voltage to them.
I can only remove the power if both breakers are closed. Did the two circuits accidentally get wired together? Can anyone else think what the cause of this might be?