Installing Your Leviton Decora Smart WiFi Dimmer (D26HD)

What You'll Need

• Leviton Decora Smart WiFi Dimmer (D26HD)
• Phillips head screwdriver
• Wire strippers
• Voltage tester
• Smartphone with My Leviton app
• 2.4GHz WiFi network
• Neutral wire required

Step-by-Step Setup

1. Turn off power: Switch off circuit breaker for the switch location.
2. Remove existing switch: Unscrew wall plate and disconnect wires.
3. Identify wires: Locate Line (hot), Load, Neutral (white bundle), and Ground.
4. Connect Leviton dimmer: Connect Hot to brass terminal, Load to red/brass terminal, Neutral to silver terminal, Ground to green.
5. Mount dimmer: Secure in wall box and attach Decora wall plate.
6. Restore power: Turn breaker back on. LED will flash indicating setup mode.
7. Download My Leviton app: Install and create account.
8. Add device: Tap "+" and follow prompts to connect to 2.4GHz WiFi.
9. Configure settings: Adjust fade rates, LED brightness, and bulb type.

Key Features

• Built-in WiFi - no hub required
• Matter compatible (via firmware update)
• Works with Alexa, Google, Apple Home, SmartThings
• 600W incandescent/MLV or 300W LED/CFL capacity
• Scheduling and scenes in My Leviton app
• Works with Decora Smart companions for 3-way
• Adjustable LED locator light
• Preset light level memory

Troubleshooting

• Red LED flashing: Setup mode active. Open My Leviton app to complete setup.
• Won't connect to WiFi: Ensure 2.4GHz network (not 5GHz). Check password.
• Lights flickering: Adjust minimum brightness in app settings. Check bulb compatibility.
• Dimmer not responding: Check WiFi connection. Press dimmer to wake from low-power state.