Wiesenfield WIE-CCD-100 Bedienungsanleitung Seite 32

5) Press "↑" to open the door. Install 2 screws approximately 10 cm above
the control panel in the wall of the poultry house to prevent the door
from tilting to the left or right. The screws should be screwed in right
next to the door protruding above the controller. Be careful not to
damage the door.