The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. If the evaporator fan is not working, the freezer or refrigerator will not cool adequately.. If the fan blade does not turn freely, replace the fan motor. Additionally, if the motor is unusually noisy, replace it.
Here's how to troubleshoot a failing fridge that's lost its frosty feel. This step-by-