The other day the light fails. I try turning the light on and off. That doesn't work. I assume it's the bulb, so I replace it. Doesn't work. I try another known bulb: no go. Doesn't work.
So then I'm thinking the switch itself is bad. But there are three weird things:
- When I'm screwing in the new bulbs, the bulbs flicker on for just a split second as they're going in. This isn't a matter of position or angle or anything. They just flick on and then off.
- In the same way, the switch itself has a little on/off button. And when I try to reset it by turning it off and on, the light bulb flickers, just for a second.
- The programmable switch works with a little LCD display on it -- like on a Casio watch. And the display is now always off - regardless of whether there's a bulb installed. I think there's some way with these kinds of switches that the switch needs a completed circuit through the bulb in order to power the switch display (or something like that), but I definitely don't understand how that works.
All of this is to say: Am I still right to assume the switch itself is bad? Or could it be the socket up there on the ceiling? Obviously, the socket issue, since it's inside an outside fixture, is more of a pain in the neck.
Thanks in advance!
OK. Added a picture of how it was wired. I believe this to be original 1920s knob and tube wiring. Wondering what options I have for a switch replacement in this case, either with a programmable or even a smart/wifi outlet.