Error Code AC
The control panel and main computer board cannot talk to each other.
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC
What This Means
Signals between sub and main PBAs not sensed; Incorrect or loose connector connections between sub and main PBAs; Disconnected wires; Faulty soldering on sub PBA
What actually causes this:
A loose wire connection between the control panel board and the main circuit board, often from vibration.
First Thing to Check
Unplug the washer for 60 seconds, then plug it back in and try again.
Parts Involved
How to Fix
- 1
1. Check the wire connections and terminal contacts between the sub and main PBAs
- 2
2. Check for disconnected wires
- 3
3. Check whether the sub PBA is short-circuited because of moisture
- 4
4. Remove the sub PBA control panel and check for any faulty soldering
- 5
5. If the main PBA's communication circuit is faulty, replace it
This Error Applies To
Samsung WA50R5400A Series Washers (2022) (2022–present)
Related Error Codes
The washer's main computer has crashed.
The washer's main computer has crashed.
The vibration sensor may have failed.
An antibacterial system component has stopped working.
The water temperature sensor inside the wash tub is not reading correctly.
The temperature sensor for the drying function is not reading correctly.
The laundry inside the washer is bunched up on one side.
There are too many soap suds in the washer.