Error Code 6
Refrigerator cannot sense outside air temperature
Moderate
Address soon - your appliance may not work properly
Also displayed as: 6 (Fridge LED blinks)
What This Means
Ambient thermistor disconnected from MAIN PCB connector CN51; Ambient thermistor defective (open or shorted); Bad wiring between sensor and MAIN PCB; MAIN PCB defect
What actually causes this:
Ambient sensor is disconnected or faulty
First Thing to Check
Check that the sensor wire is fully connected
Parts Involved
How to Fix
- 1
1. Enter self-diagnostic mode via Engineer Mode (select '3')
- 2
2. Measure voltage at MAIN PCB CN51 pin 4 to pin 6 — normal range: 1.0V to 4.5V
- 3
3. Disconnect CN51 and measure resistance between CN51-4 and CN51-6 — compare to temperature table
- 4
4. Check MICOM input at IC01 MICOM pin 2 and resistor R358
- 5
5. If sensor tests normal, replace MAIN PCB
This Error Applies To
Samsung RF22A4 Series Refrigerators (2021) (2021–present)
Related Error Codes
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Cannot detect compressor motor position
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Humidity level cannot be monitored
Water in dispenser tank cannot be heated
Compressor protection circuit activated