Simple Four Way Circuit
Using a continuity tester check continuity between terminals as shown.
Four way circuit. Fully explained 4 way switch diagrams. How to wire a 4way switch. The first one is the timing and counting stages.
If you only need two switches leave out both the 4 way switches. How to wire a switch wiring a light switch diagram 1. If you understand the logic behind the 3 way circuit the 4 way will not seem that difficult.
The other one is an indication of the light stage. You can see me operate all four switches in the video below. To wire a 4 way switch start by turning off the circuit breaker for the room you re working in.
Remove all of the switches so you can access the switch terminals. Here is an example of a light in the middle of the run. Here are another couple of variations of 3 and 4 way switch circuits.
Each set of terminals is one of the toggle positions. The circuit neutral is spliced at each switch box through to the light fixture using the white wire. Notice the pattern is very similar but the color code is a.
After that connect the black wire from the fixture to a red or white wire leading out of the box to the first. They all must be between the two 3 way switches. There are four terminals that provide two sets of toggle positions on a four way switch.