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Mitsubishi MUZ-FD12NA Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost cycle which aids to rid your unit of frost that can build up. The board is influenced by a temperature sensor which is near the condenser somewhere, in order to agree when the defrost cycle should begin.
What are the signs that the Mitsubishi defrost sensor board is almost dead?
- Your system could stop running because of lack of airflow through the outdoor unit
- The HVAC system control board may issue an error of some type produced by a failing defrost board
- Defrost mode refuses to initiate despite that there is a large amount frost on the unit
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