Error Code SF
The washer's main computer chip has malfunctioned
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: SF
What This Means
Micro Controller operation failure; Main PCB fault
What actually causes this:
The main control board had a software crash or hardware failure
First Thing to Check
Unplug the washer for 5 minutes and plug it back in — sometimes this clears a one-time glitch
Parts Involved
How to Fix
- 1
1. Power cycle the washer by unplugging for 5 minutes
- 2
2. If the error returns, replace the Assy PCB
This Error Applies To
Samsung WD53DBA900HZA1 Series Washers (2024) (2024–present)
Related Error Codes
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A temperature sensor on the evaporator inlet is reading incorrectly
A temperature sensor on the evaporator outlet is reading incorrectly
A temperature sensor on top of the compressor is reading incorrectly