Error Code AC
The main computer board and the door control board are not communicating
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display
What This Means
Main PBA or Sub PBA is out of order; Communications connection for the Main PBA or Sub PBA not properly connected; Wire harness damage
What actually causes this:
A power surge or loose wire connection disrupted communication between the control boards
First Thing to Check
Turn off the dishwasher at the circuit breaker, wait 60 seconds, then turn it back on
Parts Involved
How to Fix
- 1
1. Check connector between Sub PBA and Main PBA — reconnect
- 2
2. Check CN802 connector for Sub Communication on Main PBA
- 3
3. If connections are good, replace Sub PBA
- 4
4. If still failing, replace Main PBA
Other Error Codes for DW80B7071UG
The dishwasher is not getting enough water to run
The dishwasher cannot pump the dirty water out
The heating element is not warming the water properly
The water inside the dishwasher got dangerously hot
The hot air drying system is not heating up properly
The hot air drying system got dangerously overheated
The water temperature sensor is not reading correctly
The temperature sensor in the drying system is not reading correctly