3 Way Switch Wiring Diagram Video. How Three-Way Switches Work. by Marshall Brain. Let's start by looking at how a normal light is wired so that you can understand basic residential wiring for a light switch.
Test old switch and new switch with continuity tester or multimeter to match up wires. Don't disconnect old switch before you are certain about the wiring. Let's start by looking at how a normal light is wired so that you can understand basic residential wiring for a light switch.
Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
Three-way light switches control a light from.
Before you begin anything with a three-way, you must understand that in order for you to have a three-way circuit you must have three-way switches. I'm preparing to wire a circuit with two three-way switches. The figure below shows the simplest possible configuration Three-way switches have different methods of connection, depending on the brand of the switch.