Error Code 41
Control board and display panel have stopped communicating
Moderate
Address soon - your appliance may not work properly
Also displayed as: PC-Ch (alternating ON/OFF 0.5s each)
What This Means
Main PCB failure; Panel PCB failure; Wiring harness between main board and panel damaged or disconnected; Door wire harness connector fault
What actually causes this:
The main control board and the display panel are not talking to each other, usually because a wire connector is loose or one of the boards has failed.
First Thing to Check
Check that the panel connector at Panel PBA CN1 is fully seated and that the door wire harness is not pinched.
Parts Involved
How to Fix
- 1
Check connection between Panel PBA CN1 and door wire harness
- 2
Verify voltage at door wire connector: pins 3–5 should read 12V, pins 4–5 should read 5V
- 3
Use oscilloscope to verify communication signal on harness (required for definitive test)
- 4
Replace Main PCB and verify if problem persists
- 5
Replace Panel PCB if Main PCB replacement does not resolve
This Error Applies To
Samsung RS27FDBTNS Series Refrigerators (2016) (2016–present)
Related Error Codes
Main board and I/O expander board have lost communication
Fridge defrost sensor has failed or lost connection
Fridge cooling fan motor is not spinning or sending feedback
Freezer temperature sensor has failed or disconnected
Ambient room temperature sensor has failed or disconnected
Fridge temperature sensor has failed or disconnected
Ice maker temperature sensor has failed or disconnected
Main board and inverter compressor board have lost communication