Locate the button
The button is located on the top of the Door Sensor.
Press and hold the button
- Make sure the battery is properly installed
- Press and hold the button
- Hold the button down for more than 5 seconds until the LED changes from increasing rapid blinking to slow blinking in blue
Verify that the Door Sensor has reset
- Press the button briefly
The Door Sensor LED should be slowly pulsing in white indicating that it has been reset to factory settings. If it's not the case, go through the factory reset procedure again.