However if you need to rewire a light switch or a plug socket you may occasionally come across two black wires. How do you find out which wire is hot or the black wire.
How To Install A Ceiling Fan Ceiling Fan Wiring Ceiling
Two black wires coming from ceiling. In the course of replacing this light receptacle i came across two white wires. If you have a 2 switch setup connect the blue and black wires to the blue and black wires coming out of your ceiling. Black means hot white signifies neutral and green indicates ground. If your fan doesnt have lights youll only have to connect the black wires. The easiest and safest way is to use a multimeter to test for current. The old single light has the 2 wires connected separately by a little metal tab.
Connect the lead wires from the fixture to the black hot wire in the electrical box by twisting a wire connector to the ends of the. Its essential that you determine which black wire is hot before proceeding. What you are describing sounds like a switch loop which means one cable is the power supply coming from breaker or a receptacle or some other source of power and the other cable is going to the switch hence one black wire being hot. If you only have 1 switch connect the bound blue and black wires to the black wire coming out of your ceiling. Twist the ends of the two light fixture lead wires together. I tried connecting the 3 black and 3 white together and attached the metal ground to the green screw.
It kept on switching the breaker when i went to turn it back on. The ceiling wires have 2 black and 2 white coming down.