Error Code AC
The control panel and the main computer board are not talking to each other
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC
What This Means
Communication error between sub PBA and main PBA; Incorrect or loose wire connections between sub and main PBAs; Faulty soldering on sub PBA C/Panel; Moisture or short-circuit on sub PBA
What actually causes this:
A wire connection between the control panel and the main board came loose
First Thing to Check
Unplug the washer for 60 seconds and plug it back in — if the error returns, it needs service
Parts Involved
How to Fix
- 1
1. Check the wire connections and terminal contacts between the sub and main PBAs
- 2
2. Check for disconnected wires
- 3
3. Check whether the sub PBA is short-circuited because of moisture
- 4
4. Remove the sub PBA C/Panel and check for any faulty soldering
- 5
5. If the main PBA's communication circuit is faulty, replace it
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
Other Error Codes for WF45A6400AV
A button on the control panel is stuck or pressed in
The washer thinks the door is open
The small add-door on the front of the washer is open
The small add-door lock motor is not working correctly
The washer overheated and shut itself off for safety
The washer is filling with too much water and cannot stop
The washer is not filling with water
The washer is not getting the right amount of electrical power