Error Code AC4
Your 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 the WiFi Module and main PBAs not sensed due to communication error; Incorrect or loose connector connections between WiFi Module and main PBA; Faulty soldering on the WiFi Module
What actually causes this:
The internal WiFi board connector came loose or the WiFi module developed a fault.
First Thing to Check
Unplug the washer for 2 minutes, plug it back in, and try reconnecting to WiFi.
Parts Involved
How to Fix
- 1
1. Check the connector connections between the WiFi Module and main PBA
- 2
2. Check for incorrect or loose connections
- 3
3. Remove the WiFi Module and check for faulty soldering
- 4
4. Replace the WiFi Module or main PBA if faulty
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung WF45N5300A Series Washers (2017) (2017–present)
Related Error Codes
An internal communication module in your washer has lost its connection.
Your washer's vibration sensor has a general fault.
Your washer's main computer board has crashed and cannot recover.
Your washer is not getting enough water to start or continue the cycle.
Your washer is not getting enough electrical power to run properly.
Your washer cannot detect the water level inside the drum.
The water coming into your washer is too hot for the selected cycle.
Your washer is getting too much electrical power from the outlet.