Having a problem, My remotes will not activate the door, My door reverses for no apparent reason – Craftsman 1/2 HP GARAGE DOOR OPENER MODEL 139.5364812 User Manual

Having a problem, My remotes will not activate the door, My door reverses for no apparent reason | My motor unit hums briefly | Craftsman 1/2 HP GARAGE DOOR OPENER MODEL 139.5364812 User Manual | Page 33 / 40