How do you troubleshoot a 3-way wire?

How to Troubleshoot Three-Way Switches

  1. Turn off power to the switches at the circuit breaker and using a tester, make sure power is off. …
  2. Using a continuity tester, check continuity between the common (black) terminal and each of the traveler terminals (brass colored) of each 3-way switch.

How can I tell which wire is common on a 3-way switch?





Quote from the video:
Quote from Youtube video: And take a tester and see which one of the black wires is a live wire. So this is our live wire this is going to be our common terminal. Now if you try both of these black wires.

How do you troubleshoot a 3-way switch?

Quote from the video:
Quote from Youtube video: Taken the plate off and pulled out the switch. The power originates from this location. And everything looks great okay however over here i found a problem.

How do I wire a 3-way light switch?

Quote from the video:
Quote from Youtube video: Itself are the hot and the switch leg the neutrals they stay tied together in the box.