Does the wall switch have 3 buttons? If so, press and hold the one with the pad lock icon for 3 seconds and release. Now try the remotes. If this isn't the case then I would suspect the receiver which is part of the logic board and runs around $75.00 plus labor if you are not inclined. If the unit is over 10 years or close to it I would suggest you purchase a new one.

Unfortunately, the wall switch has one button (it looks like a doorbell button). I could change out the receiver, but you're right, probably just better to buy a new unit. Thanks for all of the help.