Error Code 41
Main board and display are not talking to each other
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 41C
What This Means
Communication cable not properly connected between Main PCB and Panel PCB; Serial data line shorted or damaged; Main PCB serial connector defective; Panel PCB serial connector defective; Main PCB defective; Panel PCB defective
What actually causes this:
Communication cable came loose or one of the circuit boards failed
First Thing to Check
Check if the display shows anything — complete black display indicates communication failure
Parts Involved
How to Fix
- 1
1. Unplug refrigerator
- 2
2. Locate communication cable between Main PCB and Panel PBA
- 3
3. Inspect cable connectors for damage or corrosion
- 4
4. Reseat both connectors firmly
- 5
5. Check cable for pinching or damage
- 6
6. Power on and verify error clears
- 7
7. If error persists, use oscilloscope to verify serial data transmission
- 8
8. If cable and connectors are normal, replace Main PCB or Panel PCB
This Error Applies To
Samsung RF22N9781 Series Refrigerators (2018) (2018–present)
Related Error Codes
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Room temperature sensor not working
Ice maker temperature sensor failure
Fridge temperature sensor is not responding
Convertible zone temperature sensor failure
Ice storage area temperature sensor malfunction
Freezer defrost sensor is faulty
Convertible zone defrost sensor malfunction