Name: Samsung RF23M8090SG
Brand: Samsung

Question 1

What does error code AMBIENT_SENSOR_ERROR mean on Samsung RF23M8090SG?

Accepted Answer

Outside air temperature or humidity sensor is faulty. Cause: Disconnected or poorly seated connector at MAIN PCB CN34; Failed humidity/ambient combination sensor; Solder defect at R348 on PCB; Failed MICOM IC01 pin 12.

Question 2

What does error code AUTOFILL_OVERFLOW_ERROR mean on Samsung RF23M8090SG?

Accepted Answer

Auto Fill water infuser has too much water in it. Cause: Water overflow in Auto Fill Infuser container; Water level sensor stuck or faulty; Auto Fill valve not closing properly.

Question 3

What does error code C_FAN_ERROR mean on Samsung RF23M8090SG?

Accepted Answer

Condenser (compressor area) cooling fan is not working. Cause: Condenser fan motor failure; Bad wiring at CN32-12/13; Debris or ice blocking fan blade; Main PCB drive circuit failure; Rotation pulse feedback absent at CN32-11.

Question 4

What does error code COMP_IPM_FAULT mean on Samsung RF23M8090SG?

Accepted Answer

Compressor drive circuit detected an abnormal current condition. Cause: Open circuit in compressor wiring (CN102); Bad soldering at shunt resistor R1 on inverter board; Compressor winding fault; Refrigerant cycle anomaly.

Question 5

What does error code COMP_LOCATION_DETECTION_ERROR mean on Samsung RF23M8090SG?

Accepted Answer

Inverter cannot detect the compressor rotor position to spin it. Cause: Bad compressor wiring connections; Wrong or out-of-spec value at R308 on inverter board; Compressor or refrigerant cycle problem.

Question 6

What does error code COMP_MOTOR_LOCKED mean on Samsung RF23M8090SG?

Accepted Answer

Compressor motor is mechanically jammed or not spinning at proper speed. Cause: Compressor mechanical seizure (locked rotor); Compressor running below 1000 RPM for more than 5 seconds; Sudden large change in input voltage; Bad value or solder at R308 on inverter board; Unstable voltage at C103 capacitor on inverter board.

Question 7

What does error code COMP_OVER_VOLTAGE mean on Samsung RF23M8090SG?

Accepted Answer

Compressor is receiving too high a voltage. Cause: Input AC voltage exceeds 155V; Short circuit in DC link resistors R522, R523, or R524 on inverter board.

Question 8

What does error code COMP_START_FAILURE mean on Samsung RF23M8090SG?

Accepted Answer

Compressor failed to start up properly. Cause: Short circuit between compressor U, V, or W phase terminals (CN102); Short among IPM pins 1~26 on inverter board; IPM operating voltage dropped below DC 13.5V; Compressor motor winding failure; Refrigerant cycle problem.

Question 9

What does error code COMP_UNDER_VOLTAGE mean on Samsung RF23M8090SG?

Accepted Answer

Compressor is getting too low a voltage to run. Cause: Input AC voltage dropped below 53V; Shorted DC link resistor R525 on inverter board.

Question 10

What does error code FLEX_ZONE_DAMPER_HEATER_ERROR mean on Samsung RF23M8090SG?

Accepted Answer

Flex Zone damper anti-frost heater is not working. Cause: Damper heater open circuit or short circuit; Disconnected connector at MAIN PCB CN75; Wiring harness damage; Main PCB MICOM #91 output failure.

RF23M8090SG

Error Codes

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Code	Meaning	Severity
AMBIENT_SENSOR_ERROR	Outside air temperature or humidity sensor is faulty	Minor
AUTOFILL_OVERFLOW_ERROR	Auto Fill water infuser has too much water in it	Moderate
C_FAN_ERROR	Condenser (compressor area) cooling fan is not working	Critical
COMP_IPM_FAULT	Compressor drive circuit detected an abnormal current condition	Critical
COMP_LOCATION_DETECTION_ERROR	Inverter cannot detect the compressor rotor position to spin it	Critical
COMP_MOTOR_LOCKED	Compressor motor is mechanically jammed or not spinning at proper speed	Critical
COMP_OVER_VOLTAGE	Compressor is receiving too high a voltage	Critical
COMP_START_FAILURE	Compressor failed to start up properly	Critical