The best way to reset a LiftMaster garage door opener depends on the issue you are troubleshooting: to clear all programmed remotes and keypads, press and hold the yellow Learn button on the motor housing for 6 seconds until the LED turns off. To clear Wi-Fi settings, hold the Learn button for 10 seconds until it beeps. To reset travel limits, press and hold the square adjustment button until the door cycles through its open and close limits. Verification: Test remote controls or network pairing to confirm previous programming has been erased.
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