• make sure the extender is plugged in, connected to your WiFi, and has green status on "My Devices" page
• remove cover from the remote unit
• remove 3xAAA batteries
• unplug the sensor wire (1)
• gently bend battery clips (2) towards each other as shown on the image below
• push the main processor (3) with your thumb in the dirrection pointed by the arrow

• reinstall 3 new AAA
• press the "Test" button (4) for 2 sec
• check your email/phone for a notification

• put magnet and sensor next to each other
• plug the sensor wire (1) back into connector on the main board
• separate magnet and sensor for 2 sec
• check your email/phone for a notification

Get back to us with the results of troubleshooting if required