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LG A2UH243FA0 Defrost Sensor Board
The defrost sensor control board initiates the defrost cycle if necessary, to continue normal heating and cooling operations. It relies on a defrost sensor located somewhere by the condenser to ascertain when the defrost cycle should begin.
Major indications the defrost sensor board is dead
- Defrost mode never kicks in despite that there is a large amount frost that needs to be removed
- Your main control board may show a specific error code if the defrost control board fails
- Your system could not run for the simple fact of lack of airflow through the outdoor unit
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