I have recently moved into a house built in 1998. In repairing and upgrading some of the light fixtures and switches, I came across a light fixture, hanging from the ceiling over the stairs to the second floor, that does not seem to be on any circuit in the main breaker panel.
I systematically flipped every breaker in the box off and then on, one at a time, while my wife kept an eye on the light. It never went off.
How can this be?
How can I track down where this light is getting its power?
The previous owner of the house seems to have tinkered a lot: some of the wiring is a little odd. For instance, at least one 3-way switch was miswired so that it was a master switch instead of a real 3-way. So he might have done something unorthodox in wiring this fixture.
The light in question is on 3-way switches (but not miswired as above). Could one side be wired to one leg of the breaker panel and the other to the other, so that turning off one breaker at a time never cut power to it? Or is that not possible?