The AC6 or AE6 error code indicates a communication issue between two important parts of your Samsung washer: the main PCB (printed circuit board) and the inverter PCB.

Possible causes of the AC6 or AE6 error code in Samsung washer:
- Loose or Faulty Wiring: The connection between the two PCBs might be loose or have faulty wires.
- Inverter PCB Malfunction: The Inverter PCB itself could be malfunctioning.
- Main PCB Malfunction: In some cases, the issue might lie with the Main PCB.
Troubleshooting Steps for the AE6 and AC6 Error Codes:
- Check the Wiring: Unplug your washer and visually inspect the wire harness connecting the Main PCB and Inverter PCB. Look for any loose connections, damage, or corrosion on the wires. Reattach any loose connections and secure them properly.
- LED Status Checks: While these checks require accessing the PCBs, they can help identify which PCB might be faulty.
- Inverter PCB LED: With the washer unplugged, the LED should be off. Once plugged in, a normal inverter PCB will show the LED turn on for 1 second, then turn off for 1 second, in a repeating pattern.
- Main PCB LED: With the washer unplugged, the LED should turn off. When plugged in, a normal main PCB will show the LED turn on for 5 seconds and then turn off for 1 second, in a repeating pattern.
If the LED checks indicate a faulty PCB or you’re uncomfortable inspecting the wiring, it’s best to contact a qualified appliance repair technician for further diagnosis and repair. For a more detailed visual guide, you can watch this video tutorial: [How to Fix Error Code AC6 or AE6 on a Samsung Washer].
By the way,
- Before troubleshooting, always unplug your washer for safety.
- Consult your Samsung washer’s service manual for specific instructions related to your model.
- If you decide to replace a PCB yourself, ensure you get the correct replacement part for your specific washer model.
By following these steps, you can hopefully identify and potentially fix the cause of the AC6 and AE6 error codes in your Samsung washer.

I am a master Appliance Repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.