Error Code AC4
The washer's Wi-Fi module lost its connection to the main board
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC4
What This Means
Communication error between Wi-Fi Module and main PBA; Incorrect or loose connector connections between Wi-Fi Module and main PBA; Faulty soldering on Wi-Fi Module
What actually causes this:
The Wi-Fi module's internal connector came loose or the module itself failed
First Thing to Check
Unplug the washer for 60 seconds and plug it back in to reset the electronics
Parts Involved
How to Fix
- 1
1. Check the connector connections between the Wi-Fi Module and main PBA carefully
- 2
2. Check for incorrect or loose connections
- 3
3. Remove the Wi-Fi Module and check for any faulty soldering
This Error Applies To
Samsung WF50R8500A Series Washers (2019) (2019–present)
Related Error Codes
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The incoming water is too hot for delicate wash cycles
Your washer isn't getting enough electrical power
Your washer is getting too much electrical power
An internal communication module lost its connection
The washer's display screen lost its connection to the main board
The washer door isn't closing or locking properly
The small add-clothes door on top isn't closed properly