Open and close your Andersen French door to determine where the door is rubbing. If the door is rubbing against the floor then the door should be raised, and vice versa.
Open the door and insert a 5/32-inch hex wrench into the bottom portion of the door hinge.
Push the hex wrench upward to access the vertical adjustment screw.
Turn the adjustment screw to the right to raise the door, or turn the screw to the left to lower the door.
Remove the hex wrench from the bottom of the door hinge and open and close the door to make sure it is positioned properly.