Error Code AC4
The Wi-Fi module inside the washer stopped communicating
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC4
What This Means
Signals between Wi-Fi Module and main PBAs not sensed; Incorrect or loose connections between Wi-Fi Module and main PBAs; Wi-Fi Module faulty soldering
What actually causes this:
The Wi-Fi module connector came loose — the washer still works, just not smart features
First Thing to Check
Unplug the washer for 5 minutes and plug it back in — Wi-Fi features may resume
Parts Involved
How to Fix
- 1
1. Check the connector connections between the Wi-Fi Module and main PBAs 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 WD53DBA900HZA1 Series Washers (2024) (2024–present)
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