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Amcor AWS120HR Defrost Sensor Board
The defrost sensor board will begin an important defrosting cycle if necessary, to remove frost build-up that may accumulate. It is influenced by a temperature sensor which is near the condenser somewhere, in order to make the decision on when to initiate the defrosting cycle.
Clues your defrost board needs replacing
- AC and heating system could stop operating for the fact of lack of airflow through the outdoor unit
- The defrost feature will not initiate despite the fact that there is quite a bit frost on the external unit
- The main circuit board could display an error of some type referring to a failing defrost control board
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