Follow the how to troubleshoot 3 way switches link to test the 3 way switches. I have a 4 way circuit and it has worked for 10 years.
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Troubleshooting 4 way switch. I isolated it the 4 way switch. In the first 3 way switch box connect the pair of wires leading to the 4 way box to the out pair of screws on the. Troubleshooting 4 way switch circuits the most likely cause of circuit failure is an error in the wiring arrangement. Wiring the switches in the 4 way box connect the pair of wires from the first 3 way switch to the in pair of screws of your 4 way switch. Using a continuity tester on the 4 way switches check continuity between one of. The 4 way is wired with the power to the 3 way switch first then the 4 way 3 way and then lights.
Test a 4 way switch turn off power to the switches at the circuit breaker and using a tester make sure power is off. Recently it tripped the breaker. This should help when you didnt mark the wires and cant figure out how to get it back. Getting this reversed is a common mistake that is made when wiring 4 way switches. The last 3 way turns the lights on and off but when i use the first 3 way and 4 way it trips the breaker. Repeat for the other 3 way switch box.
Remove all of the. Pay close attention to the colors of the screws on the 4 way switch and understand that one set of wires are attached to one set of screws and the other set of wires attach to the other set of screws. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. Quick video describing how to hook up a 4 way switch. Verify the circuit is wired correctly using the following guidelines.
Gallery of Troubleshooting 4 Way Switch
