To break it down. You have a fan that’s moving air through the evaporator. The air is warm and the evaporator grabs the moisture and it stays as cooler air is delivered to your refrigerator. When you have a frozen evaporator that is covered with ice, the transfer stops. Ice is a very good insulator. So it is very important to keep your doors closing properly, drain tubes clean and not leaving the door open for too long.
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Why does frozen evap coil cause the fridge not to cool properly?
To break it down. You have a fan that’s moving air through the evaporator. The air is warm and the evaporator grabs the moisture and it stays as cooler air is delivered to your refrigerator. When you have a frozen evaporator that is covered with ice, the transfer stops. Ice is a very good insulator. So it is very important to keep your doors closing properly, drain tubes clean and not leaving the door open for too long.