The most common symptom of defrost problem in your refrigerator is a complete and uniformly frosted evaporator coil. Frost may also be seen on the panel covering the evaporator or cooling coil. During the refrigeration cycle of a refrigerator, moisture in the air freezes and sticks to the evaporator coils as frost The refrigerator has to go through a defrost cycle to melt this ice that continues to build up on the evaporator coils from the moisture in the air. If the refrigerator has a defrost problem the frost collected on the coils will not melt. Sometimes frost builds up to the point that it blocks airflow and the refrigerator stops cooling completely
Defrost HeaterBy Alicia
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