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.