Why your three-way light switch might be failing to work
In short: This video demonstrates how master electrician Scott Caron identifies and fixes a common wiring error in a three-way switch circuit, ensuring your lights respond correctly to both switches.
A three-way switch setup uses two separate switches to control a single light fixture. While wiring configurations vary, a common method involves connecting power or the fixture to the load side, with traveler wires running between the traveler screws on both switches.
In this specific case, the issue was caused by the traveler wire and the load wire being swapped. The repair required correctly reconfiguring the circuit by switching these wires back to their proper positions.
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Sources
- Summary by Intellect · source: How to Diagnose and Repair Three-Way Switch Problems | All About Lights | Ask This Old House
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