My garage door remote was behaving properly yesterday -- it had just gradually become a bit less sensitive (I had to press the button harder, from a closer distance), so figured it was time to replace the battery in the remote.
Since that replacement--the door has been only closing halfway, or closing all the way and then re-opening once it touches the ground. It has also become "supersensitive"-- opening when I barely touch it. I swear one time I didn't even breathe on it. What's happening? I'm now afraid to use it.