Error Code AC6
The main control board and the motor controller can't communicate
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC6 (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 is not properly connected; Wire harness damaged between Main PBA and Inverter PBA
What actually causes this:
A loose connection or power surge disrupted the signal 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 Main PBA and Inverter PBA — reconnect
- 2
2. Check wire harness for damage
- 3
3. If error persists after reconnecting, replace Inverter PBA
- 4
4. If error still persists, replace Main PBA
This Error Applies To
Samsung DW80K5050U Series Dishwashers (2020) (2020–present)
Related Error Codes
The dishwasher's control boards can't talk to each other
The dishwasher isn't getting enough water
The dishwasher can't drain the water out
The water temperature sensor isn't reading correctly
The incoming water is too hot for safe operation
The heating element isn't warming the water
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher