LED not blinking for pairing Controller can't find switch Switch behaves normally but won't pair

Factory reset - Turn switch off, then on 5 times quickly (1 second each) until LED blinks rapidly. Check wiring - Neutral wire required for smart switches. Verify proper installation. Wait for boot - After reset, wait 30 seconds for switch to fully boot before scanning code. Use Matter code - Scan QR code on switch or enter 11-digit code from device/packaging.

No motion events triggered Sensor shows offline Inconsistent detection

Battery installation - Remove battery tab or ensure batteries are fresh. Mounting position - Mount 7 feet high for best coverage. Avoid pointing at heat sources or windows. Reset sensor - Press reset button until LED flashes to enter pairing mode. Check Matter link - Verify sensor shows as online in your Matter controller app.

Lights flicker when dimmed Limited dimming range Buzzing from lights

Use dimmable bulbs - Only LED bulbs marked "dimmable" work correctly with dimmer switches. Minimum load - Dimmer may need minimum wattage. Add another bulb if single bulb flickers. Adjust range - In Cync app, calibrate dimmer's minimum and maximum levels. Try different bulbs - Some LED brands work better than others with specific dimmers.

Works in Cync but not HomeKit/Google Can't add to second controller Features missing in Matter

Update controller - Ensure Matter controller (HomePod, Nest Hub) has latest firmware. Multi-admin - After adding to first controller, use it to share to additional controllers. Feature parity - Some Cync-specific features may not be available via Matter. Cync app still works - Use Cync app for firmware updates even after Matter pairing.

Cync Matter Switches and Sensors Not Pairing

Cync by GE offers Matter-compatible switches (dimmer and on/off) and motion sensors that work with any Matter controller. This guide covers pairing and control issues for these devices.

Switch Not Entering Pairing Mode

Symptoms

LED not blinking for pairing
Controller can't find switch
Switch behaves normally but won't pair

Solutions

Factory reset - Turn switch off, then on 5 times quickly (1 second each) until LED blinks rapidly.
Check wiring - Neutral wire required for smart switches. Verify proper installation.
Wait for boot - After reset, wait 30 seconds for switch to fully boot before scanning code.
Use Matter code - Scan QR code on switch or enter 11-digit code from device/packaging.

Motion Sensor Not Detecting

Symptoms

No motion events triggered
Sensor shows offline
Inconsistent detection

Solutions

Battery installation - Remove battery tab or ensure batteries are fresh.
Mounting position - Mount 7 feet high for best coverage. Avoid pointing at heat sources or windows.
Reset sensor - Press reset button until LED flashes to enter pairing mode.
Check Matter link - Verify sensor shows as online in your Matter controller app.

Dimmer Not Dimming Properly

Symptoms

Lights flicker when dimmed
Limited dimming range
Buzzing from lights

Solutions

Use dimmable bulbs - Only LED bulbs marked "dimmable" work correctly with dimmer switches.
Minimum load - Dimmer may need minimum wattage. Add another bulb if single bulb flickers.
Adjust range - In Cync app, calibrate dimmer's minimum and maximum levels.
Try different bulbs - Some LED brands work better than others with specific dimmers.

Matter Controller Integration

Symptoms

Works in Cync but not HomeKit/Google
Can't add to second controller
Features missing in Matter

Solutions

Update controller - Ensure Matter controller (HomePod, Nest Hub) has latest firmware.
Multi-admin - After adding to first controller, use it to share to additional controllers.
Feature parity - Some Cync-specific features may not be available via Matter.
Cync app still works - Use Cync app for firmware updates even after Matter pairing.