Error Code AC4
The WiFi module cannot communicate with the main board
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC4
What This Means
Connector connections between WiFi Module and main PBA are incorrect or loose; WiFi Module has faulty soldering; Main PBA fault
What actually causes this:
The WiFi module connector came loose or the module itself failed
First Thing to Check
Unplug the washer for 2 minutes and plug it back in — the washer can still wash without WiFi
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. If connections are good, replace the WiFi Module or Main PBA
Other Error Codes for WF56H9100AW
An internal electronic module cannot communicate with the main board
The motor speed controller cannot communicate with the main board
The washer's main computer chip has stopped working
The washer's main computer chip has stopped working
The washer cannot detect the water level properly
The washer motor cannot spin or is struggling to turn
The washer is not getting water to fill the tub
The incoming water is too hot for the selected cycle