Error Code 3C
The main wash pump that sprays water isn't working properly
Moderate
Address soon - your appliance may not work properly
Also displayed as: 3C (3C1-3C6)
What This Means
Foreign object entered the circulation pump causing it to be stuck; Circulation pump is out of order; Main PBA is defective; Inverter PBA is defective
What actually causes this:
Something is stuck in the wash pump or the pump motor has failed, so water can't spray onto your dishes
First Thing to Check
Check the filter at the bottom of the tub for large debris that might have gotten into the pump
Parts Involved
How to Fix
- 1
1. Check for foreign material in the circulation hose and circulation pump — remove blockage and reconnect connector
- 2
2. Check the connections for the circulation pump connector
- 3
3. Check whether the circulation pump coil is conductive (remove connector before measuring) — Normal: approximately 5.8 ohms +/-10%
- 4
4. Check the operating LED (red) of the Main PBA — Normal: fully turned on while operating. If faulty, replace Main PBA
- 5
5. If pump coil is faulty, replace circulation pump. If Main PBA LED is faulty, replace Main PBA
Other Error Codes for DW80M9990UM
The dishwasher's main computer and the display board can't talk to each other
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 dishwasher door isn't fully closed
The automatic door-opening feature isn't working
The dishwasher isn't getting enough water to run