Error Code SF
Your washer's main computer board has crashed and cannot recover.
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: SF
What This Means
Micro Controller Operation Fail on the main PCB
What actually causes this:
The main circuit board inside the washer has had a permanent failure, similar to a computer that will not turn on.
First Thing to Check
Unplug the washer for 5 minutes, then plug it back in. If the error returns immediately, the board needs replacement.
Parts Involved
How to Fix
- 1
1. Verify the error code by power cycling the washer
- 2
2. If SF persists, the main PCB has a microcontroller failure
- 3
3. Replace the Assy PCB (main board)
This Error Applies To
Samsung WF45N5300A Series Washers (2017) (2017–present)
Related Error Codes
An internal communication module in your washer has lost its connection.
Your washer's vibration sensor has a general fault.
Your washer is not getting enough water to start or continue the cycle.
Your washer is not getting enough electrical power to run properly.
Your washer cannot detect the water level inside the drum.
The water coming into your washer is too hot for the selected cycle.
Your washer is getting too much electrical power from the outlet.
Your washer's WiFi module has lost its connection to the main board.