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International Comfort Products NNE075F16A1 Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrost sequence which helps to defrost your outdoor unit. The control board looks to a defrost sensor which is near the condenser somewhere, in order to make the decision on when to begin.
Hints of an inadequate defrost board
- AC and heating system could cease to operate for the fact of frost blocking the airflow outside
- Your main control board may issue a type of error code referring to a bad defrost board
- Defrost session never runs even though there is a large amount of frost built up
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