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Carrier 38QRR018 Defrost Sensor Board
The defrost control board initiates the defrost sequence which may be needed in order to keep your outdoor unit from plugging up. The defrost sensor board relies on a specific sensor located somewhere by the condenser to decide when to begin.
What are the clues to watch out for to know my Carrier defrost sensor board has a need to be replaced?
- The main board might give out an alphanumeric error code when encountering a problem
- The system will stop functioning because of the safety issue that the frost poses
- Defrost session has not run for a while even though there is excessive frost in the way
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