How do I fix error code 11C on a Samsung refrigerators?

1. undefined: Check Main PCB CN30 pins 11 and 13 2. undefined: Verify voltage is within 4.1V~0.8V range 3. undefined: Measure sensor output voltage 4. undefined: Compare to temperature table

Samsung Refrigerators2018–present

Error Code 11C

Q: What does error code 11C mean on a Samsung refrigerators?

Cool Select Room defrost sensor error Sensor housing separation; Incomplete contact; Open-circuited wire; Short-circuit; Abnormal temperature

Cool Select Room defrost sensor error

Moderate

Address soon - your appliance may not work properly

Also displayed as: 11C

What This Means

Sensor housing separation; Incomplete contact; Open-circuited wire; Short-circuit; Abnormal temperature

What actually causes this:

Defrost sensor disconnected or failed

First Thing to Check

Check if Cool Select defrost sensor is connected

Parts Involved

Cool Select Room Defrost Sensor

How to Fix

1
Check Main PCB CN30 pins 11 and 13
2
Verify voltage is within 4.1V~0.8V range
3
Measure sensor output voltage
4
Compare to temperature table

This Error Applies To

Samsung RF28K9070A Series Refrigerators (2018) (2018–present)

Service manual exact match: RF28K9070AAService manual exact match: RF22K938AA

Related Error Codes

29C

Cool Select Room defrost heater failed

41C

Main and panel boards are not communicating

44C

Compressor inverter is not communicating with main board

61C

Ice duct heater not working properly

65C

Ice bucket heater is malfunctioning

66C

Door handle heater not working

72C

Fridge is not cold enough

81C

Compressor will not start

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