Failed at adding light kits to fans
Solved. The "light" wire in the base of each fan was not connected to anything. Brought in an electrician who hooked them up, connected the light kits and voila, let there be light. Nothing I read on this forum or others mentioned the possibility that when the fans were installed without lights the electrician could have just left the light wire disconnected. Great to know for the future. Appreciate everyone's suggestions! Glad to know it wasn't anything I did wrong.