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International Comfort Products NAC242GKA1 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrost sequence in order to defrost your outdoor unit. The control board is influenced by a temperature sensor located in the outdoor unit to agree when to begin.
What are some indications that my AC defrost sensor board is dying?
- The defrost sequence does not begin even though there is quite a bit frost on the unit
- AC and heating system could stop functioning due to lack of airflow through the outdoor unit
- The primary control board may show an error code produced when the defrost control board fails to receive a signal
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