Error Code AC2
An internal circuit board is not communicating properly.
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC2
What This Means
I/O Board communication failure; Faulty I/O Board; Loose or disconnected connectors
What actually causes this:
A loose connector on the I/O board inside the washer.
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 all wire connections to the I/O Board
- 2
2. Check for faulty soldering on the I/O Board
- 3
3. Replace I/O Board or Main PBA if defective
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.