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Carrier 58MXA040F14108 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin an important defrosting cycle which may be needed in order to keep the outdoor unit free from frost build-up. The defrost sensor board looks to a sensor located somewhere by the condenser to agree when to begin.
Clues the defrost sensor board will not live much longer
- The defrost sequence refuses to initiate despite that there is a large amount frost built up
- The control board may signify an error signal referring to a failing defrost control board
- AC and heating system could not run due to the frost issue
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