The part(s) or condition(s) listed below for the symptom Refrigerator freezing food are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
The main control board might be defective. However, the control board is very rarely the cause of the problem. Before replacing the control board, first test all of the more commonly defective components. If none of these components are defective, consider replacing the main control board.
The air damper control opens and closes to let the proper amount of cold air into the refrigerator compartment. If the damper does not close properly, it will let too much cold air into the refrigerator. Check the damper control to determine if it is broken or stuck open.
Refrigerator air diffuser assembly. This part allows cold air from the freezer to enter the refrigerator compartment. If the refrigerator side freezes food then the air diffuser could be stuck open. If the refrigerator side is too warm then this item could be stuck closed.