Identify the limit adjustment screws around the opener unit. These are generally labeled “up” and “down.” Once you've Positioned the down travel limit switch, use a flat-head screwdriver to turn the knob. To lower the travel length, change the knob counterclockwise. You might have to check the garage door by https://downloadfreesoftware202332862.alltdesign.com/a-review-of-garage-door-opener-limit-screw-adjustment-57050366