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Lennox 14ACX-060 Defrost Sensor Board
The defrost control board commences the defrost sequence which actually helps to keep the outdoor unit free from frost build-up. The defrost sensor board is relayed information from a specific sensor which is near the condenser somewhere, in order to decide when the defrost cycle should begin.
Signs the defrost sensor board is in dire need of a replacement
- The primary control board may signify a specific error code produced when the defrost control board fails to receive a signal
- Defrosting has not run for a while even when there is a large quantity of frost on the outdoor unit
- Most systems will not operate for the fact of frost blocking the airflow outside
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