How to wire a light with multiple black/white/green wires from the ceiling?

Question

There are multiple wires coming from my ceiling, 4 black, white, and green, and 1 yellow wire.

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Our light has 1 black, 1 white, and 1 yellow/green.

I wired: - the black on the light to the bundle of blacks from the ceiling. - the white on the light to the bundle of whites from the ceiling.

Then plugged in a light bulb. The light bulb was ALWAYS ON no matter what light switch I toggled.

How should I be wiring this? Thanks.

Use the bundle of white’s for the white, connect the fixture black to the single white, and the yellow/green to the green bundle. — Tyson, Commented Aug 18, 2018 at 21:53
Correction the single white is actually yellow partially painted. That’s switched hot, it goes to fixture black. — Tyson, Commented Aug 18, 2018 at 22:40
I don't think that box can be to code, it's over fill limits. You have nine conductors plus grounds plus a fixture = 12 counted conductors, which exceeds the allowed number for all ceiling boxes (unless they make them deeper than 2.25" which I have not seen) — user278411, Commented Jun 21, 2022 at 23:47

Tyson · Accepted Answer · 2018-08-18 23:48:31Z

1

Yellow (and painted white) will be switched hot, connect that to fixture black.

The white bundle is neutral, the white from the fixture goes here.

Fixture yellow/green is ground and gets connected to the green bundle.

answered Aug 18, 2018 at 23:48

Tyson

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