Good Morning, Our garage doors will not work independently. I am not sure where the problem ever started, but we tried to reprogram them by pressing the program button on the actual opener and then the corresponding wall unit and the units lights flash as if it has learned the code but then you press to open one door and they both go up, or one goes up and the other goes down...very frustrating. Also we can only get one of our visor openers to work, even after installing a fresh battery.