Samsung Washers2017–present

Error Code AC6

The motor controller lost its connection to the main board

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC6

What This Means

Signals between the Inverter PBA and main PBA not sensed due to communication error; Incorrect or loose connector connections between the Inverter PBA and main PBA; Faulty soldering on the Inverter PBA

What actually causes this:

The inverter board connector came loose, possibly from vibration during heavy loads

First Thing to Check

Turn off the washer at the circuit breaker, wait 60 seconds, then turn it back on

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. If connections and soldering are normal, replace the Inverter PBA or main PBA

This Error Applies To

Samsung WF45M5 Series Washers (2017) (2017–present)

Service manual exact match: WF45M5500AP/A5Service manual exact match: WF45M5500AW/A5Service manual exact match: WF45M5500AZ/A5Service manual exact match: WF45M5100AW/A5

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