Error Code AC3
The main computer and motor driver boards are not communicating.
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: AC3
What This Means
DR communication error between main and inverter PBAs; Incorrect wire connections between main and inverter PBAs
What actually causes this:
A connector between the main control board and the motor inverter board has come loose.
First Thing to Check
Unplug the washer for 60 seconds and try again.
Parts Involved
How to Fix
- 1
1. Check wire connections and terminal contacts between main and inverter PBAs
- 2
2. Check for disconnected wires
- 3
3. If main or inverter PBA communication circuit is faulty, replace it
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung WW22N6850QX Series Washers (2018) (2018–present)
Related Error Codes
The incoming water is too hot for the selected delicate cycle.
The main board and motor inverter have lost communication.
The sensor that measures how much detergent is left has failed.
The sensor that measures how much fabric softener is left has failed.
The washer cannot detect the water level correctly.
The washing machine motor is not spinning properly.
The motor is drawing too much power or not reaching the right speed.
The washer is not getting water or not getting enough water.