3 Way Switch Wiring Diagram 3 Switches. Step-by-step instructions and troubleshooting guides included. 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.
Certain (most) switches are required, and required switches must turn on a light and give usable light. One of the most common problems is improper wiring due to. While a three-way switch is very simple to many who visit Instructables.com, it is a mystery to many others.
A discussion of whether a three-prong outlet should be mounted with the ground pin up or down.
Don't forget the Wire, Solder, Shielding & Supplies.
I picked up a lot of good advice from various posts - enough to put together a wiring diagram. One of the most common problems is improper wiring due to. Note that these diagrams assume that you're following all.