Cool Wiring A Ceiling Fan Hot With Light Kit References. Web what does the blue wire on a ceiling fan do? The black wire inside the fixture supplies power to the fan motor in your ceiling fan light kit.
Read the inside of your breaker or circuit box and locate the switch that controls the power to your fan. Web if you don't have separate wall switches for the fan and light, or aren't using a remote, the blue gets attached with the two blacks. Connect the neutral from the feed to the neutral of the fan.
