Samsung Washers2024–present

Error Code AC6

The motor controller board lost communication with the main board

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC6

What This Means

Signals between Inverter PBA and main PBA not sensed; Incorrect or loose connections between Inverter PBA and main PBA; Inverter PBA faulty soldering

What actually causes this:

A connector between the inverter board and main board came loose or a board failed

First Thing to Check

Unplug the washer for 5 minutes and plug it back in to reset

Parts Involved

Inverter PBAMain PBA

How to Fix

  1. 1

    1. Check the connector connections between the Inverter PBA and main PBA carefully

  2. 2

    2. Check for incorrect or loose connections

  3. 3

    3. Remove the Inverter PBA and check for any faulty soldering

  4. 4

    4. Check if the status LEDs around the Micom are normal

  5. 5

    5. Replace the communication circuit between the Micom and Micom if there are defects

This Error Applies To

Samsung WD53DBA900HZA1 Series Washers (2024) (2024–present)

Service manual exact match: WD53DBA900HZA1

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