Error Code AC6
The motor controller board stopped responding to the main computer
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display, changes to pause
What This Means
Main PBA or Inverter PBA is out of order; Communications connection for the Main PBA or Inverter PBA not properly connected
What actually causes this:
The circuit board that controls the wash and drain motors has lost its connection or failed
First Thing to Check
Turn off the dishwasher at the circuit breaker, wait 2 minutes, then turn it back on
Parts Involved
How to Fix
- 1
1. Check connector between Main PBA and Inverter PBA — reconnect
- 2
2. Check CN901 and CN902 connectors for BLDC Pump and BLDC Drain on Main PBA
- 3
3. If connections are good, replace Inverter PBA
- 4
4. If still failing, replace Main PBA
This Error Applies To
Samsung DW80B7070A Series Dishwashers (2023) (2023–present)
Related Error Codes
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