Error Code 3C
The main wash pump that sprays water is not 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 get stuck; Circulation pump motor defective; Main PBA defective; Inverter PBA defective
What actually causes this:
Something is blocking the wash pump, or the pump motor itself has failed
First Thing to Check
Check the filter at the bottom of the dishwasher for large food particles or debris that could be blocking the pump
Parts Involved
How to Fix
- 1
1. Check for foreign material in the circulation hose and circulation pump — remove any blockage and reconnect connector
- 2
2. Measure circulation pump coil resistance (disconnect connector first) — normal: approximately 5.8 ohms +/-10%
- 3
3. Check the operating LED (red) on the Main PBA — normal: fully on while operating
- 4
4. If pump tests normal but LED is off, replace Main PBA
- 5
5. If LED is on but pump doesn't run, replace circulation pump
- 6
6. If both test normal, replace Inverter PBA
This Error Applies To
Samsung DDW24M999U Series Dishwashers (2017) (2017–present)
Related Error Codes
The heating element is not warming the water properly
The dishwasher cannot pump the dirty water out
The water inside the dishwasher got dangerously hot
Water is leaking inside the base of the dishwasher
The touch panel and the control board are not communicating properly
The dishwasher's main computer board and display board cannot talk to each other
The motor controller board is not responding to the main computer
The water distribution vane that directs spray is not moving to the correct position