I know this is a stretch without seeing the wiring, but thought by throwing it out there, something might click.
I have an outdoor flood light that has been there for over 30 years. I just recently replaced the bulb and it was working fine until the other day. I checked the bulb in another socket and it worked, so I thought it was the fixture, which I replaced and it still didn't work. Next, I replaced the light switch and it still doesn't work. Any tips or ideas would be appreciated.
Thanks,
Jim