Craftsman garage door opener problem
I have a 1/2HP craftsman garage door opener and I just replaced the large plastic gear as well as the worm gear. After putting it all back together it will not go down more than 6 inches. Even when the door is not engaged it only travels down 6 inches (even when the door is engaged same thing). I made sure the infered eyes are aligned (and it was working perfectly before the gear went out). I have checked all the adjustments and the up adjustment works great but the down adjustment just doesn't do anything. It is not even close to touching but the door goes back up. The light is not blinking at all either. Does anyone have a suggestion on what I can try next?