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Carrier 38YCG030 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost cycle which may be necessary to continue normal heating and cooling operations. The defrost sensor board is relayed information from a specific sensor located somewhere by the condenser to determine when to initiate the defrosting cycle.
Simple signals your outdoor defrost sensor board should need replacing
- The main control board may throw a particular error code produced by too much frost
- Defrost mode never starts even though there is excessive frost on the unit
- The AC may stop running at all because of the amount of frost on the outdoor unit
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