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
Other Error Codes for WF45N5300AF
The small add-door on the front of your washer is not properly closed or locked.
Your washer has detected a water leak inside the machine.
Your washer's vibration sensor has a general fault.
Your washer's main computer board has crashed and cannot recover.
An internal communication module in your washer has lost its connection.
Your washer's door lock mechanism has a hardware fault.
Your washer's motor controller has lost communication with the main board.
Your washer is not getting enough water to start or continue the cycle.