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International Comfort Products T9MPD050F12C1 Defrost Sensor Board
The defrost sensor board will begin the defrost sequence which actually helps to defrost your outdoor unit. The defrost sensor board is influenced by a sensor located somewhere by the condenser to make the decision on when to initiate the defrosting cycle.
Warnings of an inadequate defrost board
- Defrost mode never begins even though there is a large amount of frost that has built up
- The whole system may stop functioning for the fact of lack of airflow through the outdoor unit
- The HVAC system control board might issue an error signal produced by a bad defrost control board
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