How do I fix error code ICE_ROOM_SENSOR_ERROR on a Samsung refrigerators?

1. undefined: Check MAIN PCB connectors CN78 and CN91 are fully seated 2. undefined: Measure voltage between CN91-2 and CN91-1; normal range 4.5V~1.0V 3. undefined: Check MICOM IC01 pin 11 voltage 4. undefined: Disconnect and measure sensor resistance against DATA1 table 5. undefined: Check solder at R919

Samsung Refrigerators2017–present

Error Code ICE_ROOM_SENSOR_ERROR

Q: What does error code ICE_ROOM_SENSOR_ERROR mean on a Samsung refrigerators?

Ice storage room temperature sensor is faulty Disconnected or poorly seated connector at MAIN PCB CN78 or CN91; Open or shorted ice room thermistor; Solder defect at R919 on PCB; Failed MICOM IC01 pin 11

Ice storage room temperature sensor is faulty

Moderate

Address soon - your appliance may not work properly

Also displayed as: R LED blinks

What This Means

Disconnected or poorly seated connector at MAIN PCB CN78 or CN91; Open or shorted ice room thermistor; Solder defect at R919 on PCB; Failed MICOM IC01 pin 11

What actually causes this:

The sensor monitoring the ice storage compartment temperature has failed.

First Thing to Check

Reseat connectors CN78 and CN91 on the main board.

Parts Involved

Ice room temperature sensorMAIN PCB connectors CN78, CN91Resistor R919

How to Fix

1
Check MAIN PCB connectors CN78 and CN91 are fully seated
2
Measure voltage between CN91-2 and CN91-1; normal range 4.5V~1.0V
3
Check MICOM IC01 pin 11 voltage
4
Disconnect and measure sensor resistance against DATA1 table
5
Check solder at R919

This Error Applies To

Samsung RF23M80 Series Refrigerators (2017) (2017–present)

Service manual exact match: RF23M80*0**Service manual exact match: RF23M8090SR/AAService manual exact match: RF23M8070SR/AAService manual exact match: RF23M8070SG/AAService manual exact match: RF23M8090SG/SAService manual exact match: RF23M8080SR/EE