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Carrier 58MTB080F10116 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrosting phase which assists to defrost your outdoor unit. The board depends on a specific sensor which is near the condenser somewhere, in order to agree when the defrost cycle should begin.
Major indications the AC defrost sensor board should be replaced
- The defrost feature does not run despite the fact that there is quite a bit frost built up
- The control board might issue an error number referring to a bad defrost board
- The whole system may stop working due in part to frost blocking the fins on the outside unit
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