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Haier HPN14XCM Defrost Sensor Board
The defrost control board determines when to initiate the defrost sequence in order to defrost your outdoor unit. The control board is influenced by a defrost sensor located somewhere by the condenser to determine when to initiate the defrosting cycle.
Clues to watch for in a bad Haier defrost sensor board
- The system will stop running for the fact of the frost issue
- The defrost feature refuses to run even when there is a large quantity of frost on the external unit
- The main control board may signify an alphanumeric error code produced by a bad defrost control board
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