In the latter one of the switches has likely gone bad. Each switch powers one or the other leg at all times.
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3 way switch not working on one side. Identifying the common wires. Disconnect all three wires or four if the outlet is grounded. There are a pair of wires that run between the two switches. Three way switches work by alternating the power connection between 2 legs called travelers. In this case the traveler wire and load wire were swapped and repairing the circuit involved switching them back. 3 install the first.
How to troubleshoot an improperly wired 3 way switch step 1. 2 turn the power back on. 1 turn off the power to the circuit at the main panel. Now using your multimeter you are going to determine which of the three colored wires is. Test a 3 way switch turn off power to the switches at the circuit breaker and using a tester make sure power is off. There should be continuity between the.
In the former case you may simply have a miswiring issue. Using a continuity tester check continuity between the common black terminal and each of the traveler terminals. Turn off the power at the circuit breaker remove the 3 wires from each of the switches and make sure that none. Remove the two 3 way. There are many ways that a three way switch can be wired but usually power or the light fixture connect to the load side of the switch and traveler wires run between traveler screws on both switches. In this step you will be turning the power back on do not touch any of the wires previously removed with.
Gallery of 3 Way Switch Not Working On One Side
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