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International Comfort Products H9MPV125L20B1 Defrost Sensor Board
The defrost sensor board initiates the defrosting phase which may be necessary to defrost your outdoor unit. The board relies on a defrost sensor that can be found near the condenser, in order to make the decision on when to begin.
What are the signs that the AC defrost sensor board is crapping out?
- The defrost sequence will not kick in even though there is a lot of frost that needs to be removed
- The whole system may end up not running due to lack of airflow through the outdoor unit
- The main control board may throw a type of error code produced by a failing defrost board
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