How do I fix error code 29C on a Samsung refrigerators?

1. undefined: Separate MAIN PCB CN70 wire from PCB 2. undefined: Check resistance between CN70 pin #3 and #1 3. undefined: If 0 Ohm, check for short-circuit 4. undefined: If ∞ Ohm, check for open-circuit

Samsung Refrigerators2018–present

Error Code 29C

Q: What does error code 29C mean on a Samsung refrigerators?

Cool Select Room defrost heater failed Heater housing separation; Contact error; Wire disconnection; Short-circuit in heater; Blown temperature fuse

Cool Select Room defrost heater failed

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 29C

What This Means

Heater housing separation; Contact error; Wire disconnection; Short-circuit in heater; Blown temperature fuse

What actually causes this:

Defrost heater circuit broken or fuse blown

First Thing to Check

Check if Cool Select heater has AC power

Parts Involved

Cool Select Room Defrosting Heater (121W AC120V)Temperature Fuse (110°C)

How to Fix

1
Separate MAIN PCB CN70 wire from PCB
2
Check resistance between CN70 pin #3 and #1
3
If 0 Ohm, check for short-circuit
4
If ∞ Ohm, check for open-circuit

This Error Applies To

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

Service manual exact match: RF28K9070AAService manual exact match: RF22K938AA

Related Error Codes

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

82C

Compressor inverter module has failed

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