Wow, talk about timing. My 1992 model chain drive opener just quit a couple of days before Xmas, so I got around to putting up the new one today. My old one did not have the optical thingys, but the new one does. I put them up on top of the motor housing pointing directly at each other about 12 inches apart, lol that seems to work just fine.
I did not try the jumper method, but I might if I start having trouble.
Now before anyone flames me, when the door starts down if it touches anything at all, it stops and starts to go right back up, I have the power setting adjusted so that it has just enough to go down.
Todd
