When a factory reset is performed, all remote controls and keyless entry codes are erased from the garage door opener. The remotes and keyless entry will need to be reprogrammed.

To factory reset a LiftMaster/Chamberlain Wi-Fi Garage Door Opener:

1. Press and hold the LEARN button on garage door opener until the LEARN LED goes out (approximately 6 to 8 seconds).
2. Immediately press and hold the LEARN button again until the LEARN LED goes out.
3. Immediately press and hold the LEARN button a third time until the LEARN LED goes out.
4. You should hear three quick beeps. All codes, MyQ accessories and built-in gateway settings are now erased.

For more information about factory resetting a LiftMaster/Chamberlain Wi-Fi Garage Door Opener, refer to LiftMaster's How to Factory Reset a Wi-Fi Garage Door Opener article.