Disconnect the Old Switch — Remove the Old Switch
Part of project
How to Replace a Stair Light Switch with a Dimmer · Step 3 of 6
In this video
Once power is confirmed off, remove the existing switch plate. Unscrew the two mounting screws holding the old switch in the electrical box. Gently pull the switch out from the box. Identify the wires connected to the old switch: typically a bare copper or green ground wire, and two other wires (often black) connected to the switch terminals. Use pliers or a screwdriver to loosen the terminal screws and unhook the wires. Disconnect the ground wire as well. Keep the wire ends separated and ensure they do not touch anything or each other.
Disconnect the Old Switch — Remove the Old Switch
Part of project
How to Replace a Stair Light Switch with a Dimmer · Step 3 of 6
In this video
Once power is confirmed off, remove the existing switch plate. Unscrew the two mounting screws holding the old switch in the electrical box. Gently pull the switch out from the box. Identify the wires connected to the old switch: typically a bare copper or green ground wire, and two other wires (often black) connected to the switch terminals. Use pliers or a screwdriver to loosen the terminal screws and unhook the wires. Disconnect the ground wire as well. Keep the wire ends separated and ensure they do not touch anything or each other.