Error Code AC4
The washer's WiFi module has lost its connection to the main board.
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC4
What This Means
Signals between WiFi Module and main PBA not sensed; Incorrect or loose connector connections between WiFi Module and main PBA; Faulty soldering on WiFi Module
What actually causes this:
A loose connector on the WiFi module, or the module itself has failed.
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 connector connections between the WiFi Module and main PBA carefully
- 2
2. Check for incorrect or loose connections
- 3
3. Remove the WiFi Module and check for any faulty soldering
- 4
4. Replace WiFi Module or Main PBA if defective
This Error Applies To
Samsung WA50R5400A Series Washers (2022) (2022–present)
Related Error Codes
The vibration sensor may have failed.
An antibacterial system component has stopped working.
Your washer cannot detect how much water is in the tub.
A sensor module inside the washer has lost its connection.
The motor's speed controller has lost its connection to the main board.
Your washer cannot pump the water out.
Your washer thinks a button is stuck or being held down.
The water heater inside the washer is not working properly.