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Carrier 38EYG042 Defrost Sensor Board
The defrost control board determines when or if to start the defrost sequence which aids to continue normal heating and cooling operations. The defrost board is relayed information from a temperature sensor located in the outdoor unit to ascertain when the defrost cycle should begin.
Key signs of a failing Carrier defrost sensor board
- Air conditioning may stop working at all because of too much frost
- The main circuit board may throw an alphanumeric error code produced by a bad defrost control board
- Defrost session does not run despite the fact that there is a lot of frost that has built up
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