Whirlpool refrigerators rely on an evaporator to vaporize the liquid refrigerant, which causes heat to be absorbed through the refrigerator walls. This absorption of heat allows the refrigerator and freezer cavities to remain cool. If the refrigerator and freezer cavities are not cooling properly, it may be due to a faulty evaporator or evaporator fan. Both the evaporator and evaporator fan are located behind the freezer's back panel, which must be removed to inspect, repair or replace the evaporator or evaporator fan.
Pull the refrigerator away from the wall and unplug the power cord from the wall outlet.
Open the freezer door and remove all of the contents of the freezer.
Remove the shelves of the freezer by lifting the front of the shelf and then pulling the shelf out of the freezer.
Remove the two screws on the left and right side of the curved panel, located on the bottom of the back panel. Remove the curved panel.
Lift the bottom of the air tower cover, located in the center of the freezer's back panel, straight back and pull the air tower cover down to remove it.
Remove the screw from the left side of the evaporator fan opening and from the panel in the upper-left side of the freezer's back panel.
Pull the back panel toward you and out of the freezer.