Error Code AC
The control panel and the main computer board are not communicating.
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC
What This Means
Signals between sub and main PBAs are not sensed due to communication error; Incorrect or loose connector connections between sub and main PBAs; Faulty soldering on sub PBA control panel; Sub PBA is short-circuited because of moisture; Incorrect wire connections between sub and main PBAs; Disconnected wires
What actually causes this:
A loose wire connection between the control panel and the main circuit board inside the washer.
First Thing to Check
Unplug the washer for one minute and plug it back in to see if the error clears.
Parts Involved
How to Fix
- 1
1. Check the connector connections between the sub and main PBAs carefully
- 2
2. Check for incorrect or loose connections
- 3
3. Remove the sub PBA control panel and check for any faulty soldering
- 4
4. Check whether the sub PBA is short-circuited because of moisture
- 5
5. Check contacts between sub and main PBAs for disconnected wires
- 6
6. If the main PBA communication circuit is faulty, replace it
This Error Applies To
Samsung WF50K7500A Series Washers (2016) (2016–present)
Related Error Codes
The washer's display screen has lost communication with the main board.
The washer cannot pump out the water after a cycle.
The washer's motor cannot spin or is struggling to turn.
The washer cannot detect how much water is in the tub.
The washer is receiving too much electrical power.
The washer's WiFi module has lost communication with the main board.
A button on the washer's control panel is stuck or jammed.
The washer is not filling with water properly.