Test a 4 way switch turn off power to the switches at the circuit breaker and using a tester make sure power is off. Its okay to be nervous but not okay to be careless or rushed.
Video On How To Wire A Three Way Switch
Troubleshooting 4 way switch wiring. It is important to understand how these switches are wired before attempting to troubleshoot or replace. Repeat for the other 3 way switch box. Remove all of the. Troubleshooting 4 way switch circuits the most likely cause of circuit failure is an error in the wiring arrangement. Follow the how to troubleshoot 3 way switches link to test the 3 way switches. 4 way switch wiring the neutrals should be spliced and pass through the middle switch box then splice to the neutral wire that goes to the light fixture at the last switch box.
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. Do not plug a trailer into the 4 way plug until function has been verified with a circuit tester. Use a circuit tester to find the bad wire. If functions are correct at the 4 way plug proceed to testing on the trailer. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. A 3 way switch and a 4 way switch can sometimes refuse to work.
Turn off the power pull off all the switches disconnecting only the wires attached to the switch situate the wires out in the open air far away from everything and each other but keep access to a part of the box open find your multimeter. 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. You may experience challenges wiring the center 4 way switch. 4 way switch configurations are used to control lights with three or more switchesa 3 way switch is used on each end with one or more 4 way switches in between the two 3 way switchesthey do not have an onoff position like single pole switches. Verify the circuit is wired correctly using the following guidelines. Using a continuity tester on the 4 way switches check continuity between one of.
Behind the converter box. If any function does not have a correct power reading at the 4 way plug test the wiring going into the converter box from the vehicle side.
Gallery of Troubleshooting 4 Way Switch Wiring
