Why is food freezing inside my refrigerator compartment?

Food with high water content placed near an air vent can freeze, so rearrange items away from vents. The refrigerator temperature control may also be set too cold — adjust it one increment at a time and wait for the temperature to stabilize. Additionally, if the refrigerator is installed in a location below 41°F (5°C), food can freeze in the refrigerator compartment. (Page 34)