I can't seem to get the gargage opener to accept more than 1 remote control. I have 2 remotes and one of them stopped working. I replaced the battery and still no good. The other one works just fine.

I can reprogram the remotes but it works on only one at a time. After programming the 1st remote successfully, adding another remote will not work. I made sure it isn't just one remote that's bad as I can erase the programming on the receiver and reprogram on the remote that wasn't working previously.

Anyone know why it doesn't allow me to add a second remote to program?