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Carrier 50XP030300 Defrost Sensor Board
The defrost sensor control board controls when to launch an important defrosting cycle which may be needed in order to keep your outdoor unit from plugging up. The control board depends on a defrost sensor located near the condenser to decide when to begin.
Easy warnings to watch for in a failing defrost sensor board
- The system may stop working at all because of too much frost
- Defrosting does not run especially when there is a rather large amount of frost on the unit
- The main control board may show an error code produced by a failing defrost board
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