Leviton Decora Smart Outlets and Switches Not Working

Leviton Decora Smart offers outlets, switches, and dimmers in WiFi, Z-Wave, Zigbee, and Matter variants. This guide covers common issues across these product lines.

Common Symptoms

• Outlet or switch not responding
• Device showing offline
• Dimming issues
• LED status light problems
• Installation or wiring issues

Identify Your Protocol

WiFi Devices (2nd Gen, etc.)

• Connect directly to home WiFi
• Use My Leviton app for control
• Work with Alexa, Google, HomeKit

Z-Wave Devices

• Require Z-Wave hub
• Compatible with SmartThings, Hubitat
• Form mesh network with other Z-Wave devices

Zigbee Devices

• Require Zigbee hub
• Compatible with SmartThings, Hubitat
• Form mesh with other Zigbee devices

Matter Devices

• Work with any Matter controller
• Apple Home, Google Home, SmartThings
• Use Thread or WiFi connectivity

Installation Verification

Wiring Check

• Neutral wire required for most Leviton smart devices
• Verify hot, neutral, and ground connections
• Check wire gauge matches device rating
• Consult electrician if unsure

No Power

1. Check circuit breaker
2. Verify wiring connections
3. Test with voltage tester
4. Ensure neutral is connected (not just passed through)

WiFi Troubleshooting

Initial Setup

1. Download My Leviton app
2. Create account
3. Add device and follow prompts
4. Device LED indicates setup mode

Connection Issues

• Requires 2.4GHz WiFi
• Ensure strong signal at device location
• In-wall devices may have reduced signal
• Check router device limits

Z-Wave Troubleshooting

Adding to Hub

1. Put hub in inclusion mode
2. Press device button once (or follow instructions)
3. Wait for hub to discover
4. Device LED confirms pairing

Not Responding

• Check hub is online
• Run Z-Wave network repair
• Exclude and re-include device
• Add Z-Wave repeaters if range issue

Zigbee Troubleshooting

Adding to Hub

1. Put Zigbee coordinator in pairing mode
2. Press device button to start pairing
3. Keep within 10 feet during initial pair
4. Move to final location after pairing

Zigbee Mesh

• Leviton outlets act as Zigbee repeaters
• More devices = better mesh coverage
• Check for Zigbee/WiFi channel conflicts

Matter Troubleshooting

Setup

1. Put device in pairing mode
2. Scan Matter QR code or enter code
3. Device joins Thread/WiFi network
4. Can add to multiple controllers via sharing

Dimmer Issues

LED Flickering

• Check LED bulb compatibility
• Set minimum brightness level in settings
• Some LEDs require minimum load

Not Dimming Smoothly

• Adjust dimmer settings in app
• Check bulb type compatibility
• May need LED-specific dimmer model

Outdoor Outlet Specific

• Rated for outdoor use
• Ensure weatherproof cover installed
• Check GFCI hasn't tripped
• WiFi signal may be weaker outdoors

Factory Reset

Method varies by device:

• WiFi: Usually hold button 7+ seconds
• Z-Wave: Exclude from hub, then reset
• Zigbee: Hold button until LED blinks rapidly
• Check specific model manual

When to Contact Support

Contact Leviton support if:

• Device won't power on after installation
• Overheating concerns
• Physical damage
• Suspected defect