Error Code AC
The dishwasher's main control board and display board can't talk to each other
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display
What This Means
Main PBA defective; Sub PBA defective; Communication connection between Main PBA and Sub PBA not properly connected; Wire harness damaged between boards
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 Main PBA and Sub PBA wire — reconnect
- 2
2. Check connector between Sub PBA and Sub wire — reconnect
- 3
3. Check for damaged or pinched wire harness
- 4
4. If error persists after reconnecting all connectors, replace Sub PBA
- 5
5. If error still persists, replace Main PBA
This Error Applies To
Samsung DW80R5061U Series Dishwashers (2020) (2020–present)
Related Error Codes
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The dishwasher isn't getting enough water
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