I have a craftsman 315mhz 1/2 hp opener and both remotes stopped working at the same time. The wall control light is solid and not flashing.

I tried to reprogram, both on the wall unit and the opener it's self. The overhead lights on the opener had stopped working a while ago but we adjusted. Now it appears that their flashing is required to see if programming has worked. Anyway does anyone know how to reprogram the two remotes?