DIAGNOSIS: The Intellicode+ rolling security code has desynchronized. This happens after repeated button presses out of range or a voltage fluctuation.
FIX: Clear and rebuild the remote list. At the motor unit, press and hold the black 'Learn' button for 10 seconds until the light goes out. Release. This erases all remote codes. Then press the 'Learn' button once (light glows). Within 30 seconds, press the button on each remote you want to add. Repeat for the Aladdin Connect module if needed via its pinhole reset.
IF THAT DIDN'T WORK: Check the antenna. The 7155 has a wire antenna hanging from the motor unit. Ensure it's fully extended and not coiled up or touching metal. A damaged antenna will kill wireless range.
HEADS UP: After clearing codes, old remotes that weren't re-paired will no longer work. You must have physical access to the motor unit to perform this reset.