Error Code AC6
The motor speed controller has lost communication with the main control board.
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: AC6
What This Means
Inverter PBA communication failure; Incorrect/loose connections; Faulty soldering
What actually causes this:
A loose connector between the inverter board and the main control board.
First Thing to Check
Unplug the washer, wait one minute, plug it back in, and try again.
Parts Involved
How to Fix
- 1
1. Check connector connections between Inverter PBA and main PBA
- 2
2. Check for incorrect or loose connections
- 3
3. Remove Inverter PBA and check for faulty soldering
This Error Applies To
Samsung WA50B5100A Series Washers (2024) (2024–present)
Related Error Codes
The dryer heating element has a wiring or component failure.
The washer's main computer chip has stopped working.
The washer's main computer chip has stopped working.
The drain module has lost communication with the main control board.
The display module has lost communication with the main control board.
A button on the control panel appears to be stuck or pressed continuously.
The washer's heating element has a problem or is overheating.
The WiFi module has lost communication with the main control board.