Error Code AC4
The washer's WiFi module isn't communicating properly
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; Wire harness damage
What actually causes this:
The WiFi module connector came loose or the module itself has a solder joint issue
First Thing to Check
Unplug the washer for 5 minutes, 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
Other Error Codes for WA50M7450AP
The washer's display screen isn't communicating properly
The washer's motor controller isn't communicating properly
The vibration sensor board has a problem
The washer's door release module isn't communicating properly
The washer can't tell how much water is inside
The washer's motor can't spin properly
The washer isn't getting water when it needs it
The incoming water is too hot for the selected cycle