Must I use both cables running to the bathroom fan

exhaust-fan

I have two cables running to exhaust fan hook up, each cable with one white and one black. Do I need both black and both white from the cables with the one black and one white from the new exhaust fan? Then what do I do with the green ground wire?

Best Answer

Chances are one cable is the source, and the other is a switch loop. You'd need to safely test to be sure, though. If that's the case, here's what it should look like:

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If you don't have a grounding conductor (bare wire) in your cable, ignore the ground wire in your fan kit. There's not much you can do about it without running new wire. It's probably a low-risk issue anyway.

Sorry your question slipped through the cracks. I hope you got it resolved.

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