Programming Travel on LiftMaster Gone Wrong
Please refer to above image. 

The "top" adjustment is for the UP (open) travel limit switch for the door... 
To lengthen the up travel, ( more "up" ) turn the slotted screw adjustment to the right. To shorten the up travel, turn the slotted screw adjustment the left.

The "bottom" adjustment is for the DOWN (close) travel limit switch for the door... 
To lengthen the down travel, ( more "down" ) turn the slotted screw adjustment to the left. To shorten the down travel, turn the slotted screw adjustment to the right.

Hope this helps you,