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Carrier 50ZP-048 Defrost Sensor Board
The defrost control board determines when or if to start the defrosting phase which may be necessary to keep your outdoor unit from plugging up. The defrost board looks to a defrost sensor which is near the condenser somewhere, in order to verify when to begin.
General indicators that your the AC defrost sensor board will not live much longer
- The primary control board might give out a particular error code produced when the defrost control board fails to receive a signal
- Defrost session does not run despite the fact that there is a lot of frost in the way
- The AC may cease to function for the fact of too much frost
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