39C error code

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There is not an error code on this model with 39C .
There is a 37C
Error Description Early termination of Cool Select Room Defrosting. Error is displayed if the Cool Select Room defrost cycle ends after 5 minutes. This may be due to a cooling system issue or a faulty defrost sensor.Related Parts. Cooling Cycle Check 2. Cool Select Room Defrost Sensor

35C
Error Description Early termination of Freezer Room Defrosting
Error is displayed if the freezer defrost cycle ends after 5 minutes. This may be due to a cooling system issue or a faulty defrost sensor. 1. Cooling Cycle Check 2. Freezer Defrost Sensor

29C Error Description Convertible Zone Defrost Error
Convertible Zone Heater is open or a connection is loose Convertible Zone Defrost Bimetal is open or a connection is loose Convertible Zone Defrost Sensor is open or a connection is loose After separating MAIN PCB CN70 wire from PCB, resistance value between CN70_1-7 ↔ 1 shall be 63(230) ohm ± 7%. (Resistance value is varied by input power) 0 ohm : heater short, ∞ ohm : wire/bimetal open (Must power off) 1. Convertible Zone Defrost Heater 2. Convertible Zone Bimetal 3. Convertible Zone Sensor