How do I fix error code 1 on a Samsung refrigerators?

1. undefined: Check voltage between Main PCB CN20-10 and CN20-12 should be 4.5V~1.0V 2. undefined: Verify connector is fully inserted 3. undefined: Measure sensor resistance and compare to temperature table

Samsung Refrigerators2021–present

Error Code 1

Q: What does error code 1 mean on a Samsung refrigerators?

Freezer temperature sensor not responding Loose connector at CN20-10 and CN20-12; Defective freezer thermistor (F-Sensor); Bad PCB solder joint

Freezer temperature sensor not responding

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: Error 1

What This Means

Loose connector at CN20-10 and CN20-12; Defective freezer thermistor (F-Sensor); Bad PCB solder joint

What actually causes this:

Temperature sensor wire loose or sensor failed

First Thing to Check

Inspect freezer door connector for loose wires or corrosion

Parts Involved

Thermistor (F-Sensor) 502ATMain PCB CN20

How to Fix

1
Check voltage between Main PCB CN20-10 and CN20-12 should be 4.5V~1.0V
2
Verify connector is fully inserted
3
Measure sensor resistance and compare to temperature table

This Error Applies To

Samsung RF262BEAES Series Refrigerators (2021) (2021–present)

Service manual exact match: RF262BEAESGService manual exact match: RF262BEAESR

Related Error Codes

Compressor drawing too much current

Compressor motor not turning

Input voltage too low

Input voltage too high

Refrigerator defrost heater not working

Display panel not communicating with main board

Refrigerator is too warm

Outside temperature sensor not responding

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