Error Code UC
The electrical power supply to the washer is unstable.
Moderate
Address soon - your appliance may not work properly
Also displayed as: UC/9C
What This Means
Power condition fault — under or over voltage supplied; Plug receptacle (power strip/extension cord) is used; Main PBA fault (sometimes); Momentary voltage drop up to 10V when extension cord is 1m or longer
What actually causes this:
The washer is plugged into a power strip or extension cord that cannot supply enough power, especially during the heating or spin cycles.
First Thing to Check
Make sure the washer is plugged directly into a wall outlet, not into a power strip or extension cord.
Parts Involved
How to Fix
- 1
1. Check consumer's power conditions — verify operating voltage
- 2
2. Connect a tester to internal power terminals during Boil or Dry operations and observe
- 3
3. Check voltages — error occurs when under or over voltage is supplied
- 4
4. Check whether a plug receptacle (power strip) is used — when connecting wire is 1m, momentary low voltage may drop up to 10V
- 5
5. If Main PBA fault suspected, check DC voltage output: normal approx. 12V and 5V
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
Other Error Codes for WW22N6850QX
The main board and motor inverter have lost communication.
The washer cannot detect the water level correctly.
The washing machine motor is not spinning properly.
The motor is drawing too much power or not reaching the right speed.
The washer cannot pump the water out.
The control panel and the main computer board are not communicating.
The main computer and motor driver boards are not communicating.
The washer's WiFi module is not communicating with the main board.