Question: how to erase memory on liftmaster garage door opener?
Answer: Step 1: Prepare a ladder to safely access your LiftMaster opener., Step 2: Locate the 'Learn' button on the rear or side of your opener., Step 3: Press and hold the 'Learn' button for approximately 6 seconds., Step 4: Ensure that the 'Learn' LED goes out., Step 5: All previously active remotes will no longer function.