132c292-c I have a Craftsman Belt Driven Garage opener that will not close consistantly. (Model 41A5483-5C). I checked the sensors, and they are not blocked. One shows the yellow LED and the other shows the green LED. I have disengaged the door, and the opener still will not close completely, so I know there are no obstructions. When I activate the opener. The sled moves forward on the track about 12 inches, stops, then reverses. The lights then blink ten times.