Error Code UC
The washer is getting the wrong voltage from the outlet
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: UC
What This Means
Power supply voltage is too high or too low; Extension cord (plug receptacle) causing voltage drop; Main PBA fault
What actually causes this:
The electrical outlet voltage is unstable, or the washer is plugged into an extension cord
First Thing to Check
Make sure the washer is plugged directly into a wall outlet, not an extension cord or power strip
Parts Involved
How to Fix
- 1
1. Check the consumer's power conditions and measure the operating voltage
- 2
2. Connect a tester to the internal power terminals during Boil or Dry operations and observe the voltage
- 3
3. Check whether a plug receptacle (extension cord) is being used — 1m extension can drop voltage up to 10V
- 4
4. If the main PBA is at fault, replace it
This Error Applies To
Samsung WA54CG7550 Series Washers (2024) (2024–present)
Related Error Codes
The dryer temperature sensor is not reading correctly
The cold water hose is hooked up wrong
The water level sensor cannot detect the water level correctly
The washer's motor has stopped working
The washer is not getting any water
The washer cannot drain the water out
The washer is getting too much voltage from the outlet
The washer is not getting enough voltage from the outlet