Adjust only the top hinge to straighten an upper door.
How to fix refrigerator door hinges.
Clean the refrigerator door gaskets with warm soapy water and a soft cloth.
The refrigerator door lubricant within the hinge can be removed along with the crumbs or caked liquid that was cleaned out of the hinge.
To realign the door just pry off the hinge cap and loosen the hinge screws.
Prepare to quell the squeal before you eradicate the squeak remove the refrigerator contents from the door compartments and shelves.
To realign the lower door adjust the middle hinge.
You can follow the steps in this video to help you do this easy repair.
Then align the door with the top of the refrigerator.