I've got a Craftsman 1/2hp GDO almost like my neighbors - mine has 2 lights, and his has 1. When you walk through the sensors, his lights come on, mine don't. I've double checked the wiring, and all seems fine. The door opens and closes fine, and all 3 remotes and door button work good. The light comes on when the door is opened and closed, and goes off after a couple minutes. Any Idea how to make these lights come on when something passes between the sensors?