How To Replace Electrical Wall Switch. Turn off the power to the switch at the main circuit breaker or fuse panel. Switches work by controlling the flow of electrical current in the hot wire, with power coming in through the wire attached to the bottom of the switch and going out to a light or.
When remodeling or redecorating, you may find that you have a unscrew the switch plate cover.
This is a basic tutorial, situations may be different. How should i wire outlets that are controlled by a wall switch? Buy the kung fu maintenance e book here. + whatever your reason for researching how to replace a light switch, you may be looking to call in an next, pull the switch out from the wall and inspect the wires feeding into it.