Samsung Washing Machine UC Error Code: Supply Voltage Irregularity

Does this guide apply to your appliance?

Match the brand, device type and complete display code. The same code can mean something different on another product family or market; a series name does not confirm every model in that series.

Model and family references in this record:

Samsung EcoBubbleSamsung QuickDriveSamsung WW SeriesSamsung WD SeriesSamsung WA Series

Likely causes

Mains power supply voltage fluctuation, sag, or surge
Use of an extension lead, surge protector, or multi-plug adapter unable to handle motor/heating current
Overloaded electrical circuit or loose wall outlet connection
Faulty main control board (PCB) or internal power module

What to try

Perform a power reset and verify the wall connection

Easy

Power off the washing machine and unplug the power cord from the wall outlet.
Ensure the appliance is plugged directly into a dedicated wall socket rather than an extension lead, adapter, or multi-socket board.
Check that the power plug and socket show no signs of burning, melting, loose pin contact, or discoloration.
Leave the appliance disconnected for the reset interval specified in its manual. Do not open or touch internal electrical components.
Firmly plug the machine directly back into the wall socket and switch the mains power on.
Start a new cycle to confirm normal operation; if the code repeats, test another dedicated outlet or contact a qualified electrician or Samsung service center.

Source for this check: www.samsung.com

The code returned or the check did not help?

Avoid repeated resets and do not select a replacement part from the code alone. Record the exact code, full model number, when it appeared, and the checks you tried with their results. Share these details with the manufacturer or service technician.

Disconnecting power does not establish that internal components are safe to touch. This guide does not authorize opening electrical components or bypassing safety devices.