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

1. undefined: Check MAIN PCB connector CN34 is fully seated 2. undefined: Measure voltage between CN34-5 and CN34-7 (ambient channel); normal 4.5V~1.0V 3. undefined: Measure MICOM IC01 pin 12 voltage; should match CN34-5/7 4. undefined: Check solder at R348 5. undefined: Replace humidity/ambient sensor if voltage is out of range

Samsung Refrigerators2017–present

Error Code AMBIENT_SENSOR_ERROR

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

Outside air temperature or humidity sensor is faulty 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

Outside air temperature or humidity sensor is faulty

Minor

Usually easy to fix - may resolve on its own

Also displayed as: Both F and R LEDs blink

What This Means

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

What actually causes this:

The sensor that reads room temperature and humidity has failed, which can affect fan control and defrost scheduling.

First Thing to Check

Reseat connector CN34 on the main board.

Parts Involved

Humidity/Ambient combination sensorMAIN PCB connector CN34Resistor R348

How to Fix

1
Check MAIN PCB connector CN34 is fully seated
2
Measure voltage between CN34-5 and CN34-7 (ambient channel); normal 4.5V~1.0V
3
Measure MICOM IC01 pin 12 voltage; should match CN34-5/7
4
Check solder at R348
5
Replace humidity/ambient sensor if voltage is out of range

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