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International Comfort Products NTGM125EKA3 Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrost sequence which assists to keep the outdoor unit free from frost build-up. The board is relayed information from a specific sensor located in the outdoor unit to decide when to begin.
Elements of a worsening outdoor defrost sensor board
- The main board may issue an error code produced when the defrost control board fails to receive a signal
- The system will not work due in part to lack of airflow through the outdoor unit
- The defrost sequence never runs especially when there is frost on the external unit
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