How do I fix error code 2C on a Samsung refrigerators?

1. undefined: Check that Main PCB connector CN20 is fully inserted 2. undefined: Measure voltage between CN20 10PIN and 12PIN — should read 4.5V to 1.0V at normal temperatures 3. undefined: Compare voltage to the sensor temperature table to verify sensor accuracy 4. undefined: If connector is good but voltage is out of range, replace the fridge temperature sensor

Samsung Refrigerators2022–present

Error Code 2C

Fridge compartment temperature sensor is faulty or disconnected

Moderate

Address soon - your appliance may not work properly

Also displayed as: 2C

What This Means

Sensor housing connector disconnected or loose; Wiring harness open-circuit or short-circuit; Faulty temperature sensor (out of range reading); Damaged Main PCB connector CN20

What actually causes this:

The sensor connector in the fridge compartment has come loose, or the sensor itself has failed and is reading impossible temperatures.

First Thing to Check

Open the fridge, locate the temperature sensor connector, and firmly reseat it.

Parts Involved

Fridge temperature sensor (NTC thermistor)Main PCBCN20 connector

How to Fix

1
Check that Main PCB connector CN20 is fully inserted
2
Measure voltage between CN20 10PIN and 12PIN — should read 4.5V to 1.0V at normal temperatures
3
Compare voltage to the sensor temperature table to verify sensor accuracy
4
If connector is good but voltage is out of range, replace the fridge temperature sensor

This Error Applies To

Samsung RF59A7670 Series Refrigerators (2022) (2022–present)

Service manual exact match: RF59A7010**/**Service manual exact match: RF59A70T3**/**Service manual exact match: RF59A70T0**/**Service manual exact match: RF59A7F10**/**Service manual exact match: RF59A7670**/**Service manual exact match: RF59A70T1**/**Service manual exact match: RF23B7671**/**Service manual exact match: RF59A7011**/**+1 more