The blower motor that circulates air through the refrigerator was broken. I had to remove all the shelving and drawers from the refrigerator. Then I had to remove the plastic light cover from the center of the fridge. Then I removed all visible screws to uncover the evaporator/radiator. I then unplugged the light bulb and motor wires. Luckily all wiring is keyed so that it can be plugged in again without error. I removed the motor by opening the motor housing. The housing has 1 screw and then snaps open. I then removed the blower fan fins by prying off the spring keeper and then prying off the fins themselves. I replaced the blower motor with Evaporator Fan Motor part number DA31-00146E (AP4136569). I then reattached the blower fan fins, re-assembled the motor into the motor housing, plugged the wires back in and re-inserted all the screws. The repair was successful and the refrigerator is now cooling properly. Quick test note: To test the fan operation with the refrigerator door open, you need to hold the door switch closed. The fan does not come on unless the door sensor switch is closed.