How to Set Up Your Cync Smart Dimmer Switch (Matter)

What You'll Need

• GE Cync Smart Dimmer Switch (Matter version)
• Neutral wire (required)
• Dimmable light bulbs
• Matter-compatible controller
• Smartphone with Cync app or controller app
• Screwdriver, wire strippers, voltage tester

Step-by-Step Setup

1. Turn off power: Switch off the circuit breaker. Verify with voltage tester.
2. Remove existing switch: Unscrew faceplate and switch. Document existing wire connections.
3. Identify wires: Locate line (hot), load, neutral, and ground wires.
4. Connect Cync dimmer:
   • Line → Hot from panel
   • Load → Wire to light fixture
   • Neutral → Neutral bundle
   • Ground → Ground wire
5. Mount the dimmer: Install in electrical box and attach faceplate.
6. Restore power: Turn on circuit breaker. The dimmer LED should illuminate.
7. Enter pairing mode: Press and hold until LED blinks rapidly.
8. Open Matter controller: Add device and scan the Matter QR code.
9. Complete setup: Assign room and configure settings.
10. Calibrate dimming: Set minimum brightness level to prevent LED flicker.

Key Features

• Matter-certified
• Smooth dimming control
• Physical dimmer paddle
• LED status indicator
• Works with dimmable LEDs, CFLs, incandescent
• Works with Apple Home, Google Home, Alexa
• Scheduling and scenes
• No hub required

Troubleshooting

• LEDs flickering: Ensure bulbs are dimmable. Adjust minimum brightness in app. Try different LED bulb brand.
• Not powering on: Verify all connections, especially neutral wire. Check circuit breaker is on.
• Pairing fails: Ensure dimmer is in pairing mode (rapid blinking). Use 2.4GHz Wi-Fi. Factory reset if needed.
• Buzzing sound: Common with some LED loads. Try different dimmable bulbs. Check for loose wire connections.
• Minimum brightness too high: Adjust dim range calibration in the Cync app settings.