Any switch that toggles the lights on and off is probably working properly. Connect both white wires together with a wire connector and stuff them back inside the wall box.

Ct 4846 Replacing Three And Four Way Light Switching With
Replacing 4 way light switch. Step 4 move on to attaching the neutral wire to the light switch using the same technique you used to attach the hot wire. Usually when a 3 way or 4 way switch fails lights can be toggled on and off on all but one switch. Locate a bad 4 way switch. Toggle each switch until the light come on. Evidentlythe new switch one side two terminal top and bottom shows as in and on the right side top and. To replace a four way switch follow these steps.
It is important to understand how these switches are wired before attempting to troubleshoot or replace. Follow these steps to find which 3 or 4 way switch is bad. The old 4 way switch shows two top left and right terminal as line1 and the two bottom left and right as line2. Connect the pigtail to the ground wire on the four way switch. Then use a voltage tester to make sure that the circuit is dead. Turn off the power to the switch at the circuit panel or fuse box.
The third wire the red will not be switched at the 4 way location but passes to the final 3 way switch. Attach the black wire and white marked with blue wire going out of the box to the next switch to the bottom poles of the 3 way switch. How to replace a 4way light switch my 4 way switch contact went out on one side. Unscrew the switch from the electrical box and pull it out with the wires still. These two wires are the travelers to the 4 way switch. Take a spare 6 inch length of ground wire and connect it with the two ground wires in the box so you create a pigtail.
If the ground wire had been connected to the old switch complete the. Unscrew and remove the switch plate. 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.