Error Code AC
The dishwasher's main computer and the display board can't talk to each other
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display (AC in recall)
What This Means
Main PBA or Sub PBA is out of order; Communication connection between Main PBA and Sub PBA is not properly connected; Sub Wire harness is damaged
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 connections between Main PBA CN802 connector and Sub PBA CN101 connector — reconnect
- 2
2. If check code continues after step 1, replace Sub Wire
- 3
3. If check code continues after step 2, replace Sub PBA
- 4
4. If check code continues after step 3, replace Main PBA
Other Error Codes for DW80M9550US
The motor controller board inside the dishwasher stopped responding
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher
The water distribution motor that directs spray isn't working properly
The main wash pump that sprays water isn't working properly
The dishwasher door isn't fully closed
The automatic door-opening feature isn't working
The dishwasher isn't getting enough water to run