Awasome Light Fixture Wires Not Marked Ideas. To troubleshoot a faulty light fixture, first you will need to open up the switch which is turning the light on and. Video of the day step 2 turn the electrical power off to the circuit the fixture is being installed on.
Web your problem is that the three wires appear identical and are not clearly marked. Web video of the day. Just turn on the lights in your house and turn off one breaker at a time.
