To reset a Chamberlain garage door opener, clearing programmed devices or fixing travel limits requires specific actions: To clear all remote controls and wireless keypads from memory, locate the square or round colored Learn button on the back or side motor housing under the light cover, and press and hold it continuously for approximately 6 seconds until the LED indicator turns off. 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 door travel to confirm the reset was successful.
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