On Nov 13, 12:55*pm, "JC" wrote:

When a breaker overheats, it trips. If it doesn't trip, the power
stays on at full strength until the house burns down.

Don't assume the lights are all on the same circuit. Verify. Turn all
the same "problem" lights on then go downstairs and flip breakers off,
then back on. If they all go out at once, THEN they're on the same
circuit.

If your house is relatively modern, it's not likely that you will have
fixtures all over the house on the same circuit. As a general rule,
houses are wired room-by-room. Each room has one or two circuits
depending on the number of fixtures and plugs in the room.

You might have a loose wire at the breaker or in one of the boxes in
the circuit. You might have a problem outside the house.