Error Code AC4
The 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 WIFI Module and main PBA not sensed; Incorrect or loose connector connections between WIFI Module and main PBA; Faulty soldering on WIFI Module
What actually causes this:
The WiFi module connector came loose or the module itself failed
First Thing to Check
Unplug the washer for 5 minutes, then plug it back in — WiFi features may not work until fixed
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
This Error Applies To
Samsung WA52J8700A Series Washers (2017) (2017–present)
Related Error Codes
An internal circuit board can't communicate with the main controller
A drying temperature sensor has a problem
There are too many soap suds in the washer
A sensor board inside the washer isn't reading data correctly
A sensor board inside the washer has failed
The washer's main computer chip has malfunctioned
The washer can't detect the position of its internal clutch mechanism
The washer's main computer chip has malfunctioned