tallchris wrote: Mon Mar 20, 2023 1:50 pm
This dumb light fixture in our pantry stopped working. Have tried several different known good bulbs (our laundry room uses the same dumb fixture). Won't turn on from either of the two switches it's connected to. Would like to change it out, and SEEMS like it should be easy enough to install a normal light bulb socket fixture, but I really don't know anything about that work.
Any good online tutorial on how to do this? I've put my hands in amps for various things, so I know enough to not fuck around w/ electricity and to be super careful.
Make sure the breaker's not tripped.
Look around for GFI outlets, make sure none of those are tripped in case this is wired down-stream from one of those. If any are tripped, press the little reset button.
From there, the only points of failure are the fixture itself, the switches, and the connections between everything. With a florescent tube like that, the fixture may have a ballast under the hood, which could be bad, though I'd expect it to be exposed here.
If you're gonna crack anything open, that voltmeter will be handy. For safety, turn the breaker off first. To remove that fixture just unthread that nut on the central threaded tube, the back plate should just slide off, AND/OR there will be a couple screws in key-holes, if that's the case, loosen those and twist to unhook it from the screws. In theory, there will be 3 connections to the fixture. Think of home electrical kinda like XLR that can kill you. Hot (should be black if done correctly, or red) Neutral (White ") and Ground/bonding (green or bare copper). Inspect and make sure the connections are good. If anything's flapping in the breeze, or looks burny, that's probably the issue. If everything appears to be intact, take a picture for reference. We're just talking about the wires directly connected to the fixture, There may be a bunch of other wires/ connections in the box, which is where things get complicated and are likely best left to someone with some experience.
Now, you
could CAREFULLY test the wires with the voltmeter to confirm which wire is Hot and which is neutral. This would involve turning on the breaker and making sure the light is switched on, and being careful. CAREFUL.
Another option, would be to get another fixture (you can pick up a single bulb type from the big box store for like $2) and connect that. Brass/Black screw is for Hot connection, Silver screw for Neutral, green for ground. Connect it, attach it, turn the breaker back on, then test with your voltmeter (hot is the little tabby thing in the middle, neutral is the threaded part) or just slap a bulb in it and flip the switch.
Might also be worth pulling the switches out of the wall to make sure connections are good there.
Either way, consider ditching the florescent nonsense and switch to LEDs ( I like the ones in olde-school bulb type. )
Apologies if this wasn't helpful