Samsung Washers2024–present

Error Code UC

The washer is getting unstable power

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: UC

What This Means

Power condition fault — under or over voltage supplied; Extension cords are being used causing voltage drop; Main PBA fault

What actually causes this:

The washer is on an extension cord that causes voltage drops, or the home's electrical supply is unstable

First Thing to Check

Unplug the washer from any extension cord and plug it directly into a wall outlet

Parts Involved

Main PBAPower Cord

How to Fix

  1. 1

    1. Check the consumer's power conditions

  2. 2

    2. Check the operating voltage at the internal power terminals during Wash or Spin cycles

  3. 3

    3. Observe the washing machine's operation carefully for voltage fluctuations

  4. 4

    4. Check for under and over voltages

  5. 5

    5. Check if an extension cord is used — a 1m extension cord can produce a momentary voltage drop up to 10 VAC

  6. 6

    6. If Main PBA defect, replace Main PBA

This Error Applies To

Samsung WA45T3200AW Series Washers (2024) (2024–present)

Service manual exact match: WA45T3200AW/A4

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