Craftsman Remote Problems
I have a Craftsman Garage Door Opener Unit. I can only have ONE Craftsman remote operational.
If I program one remote it works. When I go to program the second remote, it will not program. The light on the receiver only flashes.
If I clear all codes to program that second remote, then I again have the same problem that I had. The remotes are identical with brand-new batteries built for that opener.