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