My bedroom is wired like a Myst puzzle. How is my ceiling light fixture supposed to be powered? If this isn't something I can fix myself, how much might an electrician charge? Pictures and diagrams inside.
Just to get this out of the way: Yes, I already work with the breaker off at all times, and always test wires with a multimeter before touching them in any fashion.
What I've determined so far
My bedroom has three fixtures
for ceiling lights. The first has already been set up with a can light (seen in the top of the photo). I'd like to deprecate this in favor of a dome light style fixture like I've tried to install on the left. This fixture, however, does not have juice.
What it does have is a single cable with a red wire and a black wire inside (picture
though you can't see the interior wires here). Both of the uninstalled fixture spots (the lower 2 in the first picture) have a cable like this; neither are powered right now.
These cables lead to a wall plate on the side wall, where there's one more cable which has red, white, black, and green wires. Picture here
- I've labelled the wires coming from the ceiling fixtures according to which side they go to. The 4-wire cable is also unpowered - it's zero volts between any 2 wires even with the breaker on and the lightswitch on.
All of the above-mentioned cables were found cut straight with no termination, so I'm inclined to believe they've never had power.
The sole light switch for the room correctly controls the can light. The wiring in it looks like the "pLL" diagram in the second column of this image
(image found here
, it's not mine). Obviously the first 'L' is controlling the can light, but I don't know what the second second 'L' in this switch goes to - none of the outlets in the room are controlled by the switch and there aren't any other ceiling fixtures.
What's my next step for trying to get these lights wired? Is there anything else I can try or look for that doesn't involve cutting huge amounts of drywall? If I have to call an electrician, how much can I expect to pay to get the two additional fixtures wired?