If your door starts to close and then reverses to the open position it is usually the sensors in the doorway have been bumped and misaligned. They must be pointed at one another for it to work. Each has a small light that should be on and not blinking. Tweak them until it works.

Unfortunately, it works fine with the button on the wall, which tells me they are aligned. I did try moving them around without success. All it did was prevent the wall button from working. Any other ideas?

You say your remotes will open the door but will not close it. What does it do when you try to close it with a remote?