Wiring a Lutron Maestro Dimmer Switch: A Comprehensive Guide
Are you looking to upgrade your home's lighting with a Lutron Maestro dimmer switch? You've come to the right place. In this step-by-step guide, we'll walk you through the process of wiring a Lutron Maestro dimmer switch, ensuring your home's electrical system is safe and your new switch is functioning perfectly. Remember, safety first! Always turn off the power at your home's main electrical panel before starting any wiring project.
Tools and Materials Needed
- Lutron Maestro dimmer switch
- Wire stripper
- Needle-nose pliers
- Screwdriver (flathead and Phillips)
- Wire connectors (wire nuts)
- Electrical tape
- Non-contact voltage tester
Step-by-Step Guide: Wiring a Lutron Maestro Dimmer Switch
Step 1: Turn Off Power and Remove Old Switch
Before you start, ensure the power is off by testing the wires with a non-contact voltage tester. Remove the old switch, unscrew the mounting screws, and pull it out gently. Remove the wires connected to the old switch and straighten them out for easier connection.
Step 2: Identify Wires
Your home's wiring should have two or three wires: black (hot), white (neutral), and sometimes a green or bare copper wire (ground). The black wire is usually connected to the brass-colored terminal on the old switch, the white wire to the silver-colored terminal, and the ground wire to the green terminal or a grounding screw.

Step 3: Wire the Lutron Maestro Dimmer Switch
Lutron Maestro dimmer switches have three terminals: Line (L), Load (Ld), and Ground (G).
| Wire Color | Lutron Maestro Terminal |
|---|---|
| Black (Hot) | Line (L) |
| White (Neutral) | Load (Ld) |
| Green or Bare Copper (Ground) | Ground (G) |
Strip about 3/4 inch of insulation from the ends of the wires. Twist the ends of the wires together tightly using needle-nose pliers. Connect the wires to the corresponding terminals on the Lutron Maestro dimmer switch using wire connectors (wire nuts), ensuring a tight connection. Wrap each connection with electrical tape for added security.
Step 4: Install the Lutron Maestro Dimmer Switch
Push the wires back into the electrical box, ensuring they're not too tight or too loose. Position the Lutron Maestro dimmer switch so the faceplate is level and the switches are easily accessible. Secure the switch to the electrical box using the mounting screws provided.

Step 5: Test the Lutron Maestro Dimmer Switch
Turn the power back on at your home's main electrical panel. Test the Lutron Maestro dimmer switch by turning it on and off, and adjusting the dimmer to ensure it's working correctly. If everything is functioning as expected, install the faceplate to complete the installation.
Troubleshooting Common Issues
If your Lutron Maestro dimmer switch isn't working as expected, double-check your wiring connections to ensure they're tight and secure. If the problem persists, consult Lutron's customer support or a licensed electrician for further assistance.
Upgrading your home's lighting with a Lutron Maestro dimmer switch not only adds convenience but also enhances your home's ambiance. With this comprehensive guide, you're now equipped to wire your new switch safely and confidently. Happy upgrading!