If the box will remain permanently accessible and with a blank cover plate then all you need to do is connect the common wire on the 3 way to either one of the travelers cap off the other traveler and leave the 4 way switch alone. Unscrew the three way switch you suspect isnt operating properly from the box.
3 Way Switch Wiring Diagram
Replace 4 way switch with 3 way. How to replace your old outdated 3 way light switches. The electrical wiring adds additional wiring to the same principles of 3 way switching. The most basic three way switch setup has two switches that connect and control one light fixture like switches on either end of a. Fully explained 4 way switch diagrams. These 3 way occupancy sensor switches may replace the existing 3 way switches. 4 way switch wiring.
Install a 4 way occupancy sensor to replace the existing 4 way switch. The sensing pattern should be adjusted as wide as possible and the time delay should be adjusted to provide enough time to travel the full distance of the stairway. Most 4 way switch wiring is placed between the wiring of two 3 way switches. If the switch doesnt have the words on and off embossed on its body and its the center switch of three switches that control a single light or receptacle its a four way switch. Before disconnecting the switch wires label each wire for easy reattachment later and mark the hot white wire with a black marker. 4 way switches are a convenient way to operate lighting fixtures from three or more locations.
Turn off the. Remove the cover plate from the switch box with a slotted screwdriver. If a light switch fails to function you should replace it. To replace a four way switch follow these steps.