How do I fix error code AC6 on a Samsung washers?

1. undefined: 1. Check the connector connections between the Inverter PBA and main PBA carefully 2. undefined: 2. Check for incorrect or loose connections 3. undefined: 3. Remove the Inverter PBA and check for any faulty soldering 4. undefined: 4. If connections are fine, replace the Inverter PBA or main PBA

Samsung Washers2024–present

Error Code AC6

The motor speed controller stopped communicating with the main board

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC6

What This Means

Communication error between Inverter PBA and main PBA; Incorrect or loose connections between Inverter PBA and main PBA; Faulty soldering on Inverter PBA

What actually causes this:

A loose connection between the motor controller and the main board

First Thing to Check

Unplug the washer for 60 seconds and plug it back in — if the error returns, it needs service

Parts Involved

Inverter PBAMain PBAWire Harness

How to Fix

1
1. Check the connector connections between the Inverter PBA and main PBA carefully
2
2. Check for incorrect or loose connections
3
3. Remove the Inverter PBA and check for any faulty soldering
4
4. If connections are fine, replace the Inverter PBA or main PBA

Parts Commonly Needed for This Error

OEM part numbers confirmed by retailers

This Error Applies To

Samsung WF45A6400A Series Washers (2024) (2024–present)

Service manual exact match: WF45A6400AV/USService manual exact match: WF45A6400AW/USService manual exact match: WF45A6400AC/USService manual exact match: WF22C6400AV/AXService manual exact match: WF22C6400AW/AXService manual exact match: WF22C6400AP/CO