De Dietrich DRS1224ES Guide D'utilisation page 37

6. Remove bottom hinge pin from right to left.
7. Unscrew top hinge pin from the hinge. Then turn the hinge over and screw hinge pin.
8. Re-fit the door and then upper hinge on left side. Ensure the door is aligned horizontally
and vertically, so that the seals are closed on all sides before finally tightening the upper
hinge. If necessary, a spanner to tighten the hinge.
9. Detach the Fridge and the Freezer door gaskets and then attach them after rotating.