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International Comfort Products N8MPN050B12A1 Defrost Sensor Board
The defrost sensor board will begin the defrost cycle which may be necessary to keep your outdoor unit from plugging up. The board depends on a temperature sensor which is near the condenser somewhere, in order to decide when to begin.
Major signs of a bad outdoor defrost sensor board
- Defrost mode does not run despite that there is a large amount frost on the external unit
- The system may stop working due in part to the safety issue that the frost poses
- The main control board may signify an error number produced by too much frost
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