Solving the Samsung Dishwasher 3C Error Code
If your Samsung dishwasher shows the 3C error code, it usually indicates a problem with the circulation or drain pump motor. This error appears when the dishwasher control board detects that the motor is not working properly, is blocked, or is not reaching the expected speed. As a result, the dishwasher may stop mid-cycle or fail to clean dishes effectively.

The issue can be caused by a jammed pump, a clogged filter, a wiring fault, or a failing circulation motor.
Understanding the Samsung Dishwasher 3C Error Code: Causes and Solutions
The 3C error signifies a communication or operational fault with the circulation pump motor. This can be caused by a physical obstruction (like a piece of broken glass or a toothpick) jammed in the impeller, a failed motor capacitor (on older models), a faulty motor winding, or a failure in the main control board relay that sends power to the pump.
Common Causes of the Samsung Dishwasher 3C Error Code
Resolving the Samsung Dishwasher 3C Error Code: Troubleshooting and Simple Fixes
Inspect the spray arm for food residue.
- Turn off the Samsung dishwasher and disconnect it from the power.
- Inspect the lower spray arm carefully to identify and remove any food particles or debris that could hinder the smooth operation of the circulation pump. A clogged spray arm may compromise the circulation pump’s ability to efficiently distribute water throughout the dishwasher.
- Thoroughly clear the spray arm and its nozzles of any food particles or debris, ensuring it is completely clear.
- Reconnect all components, power up the dishwasher, and run a short wash cycle to verify that the 3C error code no longer appears.
Clear obstructions in the circulation pump and hose:
- Begin by disconnecting the appliance from the power source.
- Remove the base cover, disconnect the hose from the circulation pump, and check the circulation pump area for any foreign materials like broken glass or debris. Make sure the impeller is free from obstructions.
- Check the circulation hose for any clogs or blockages and remove them if found.
- Reconnect everything, power up the dishwasher, and run a wash cycle to see if the 3C error code persists.
Inspect and secure wire harness connections.
- Turn off the appliance and unplug it from the power source.
- Examine the wire harness connections and connectors, ensuring they are securely fastened. Repair or replace any damaged wires or connectors.
- Reconnect everything, power up the dishwasher, and test it to confirm whether the error code is resolved.
Evaluate the circulation pump.
- Turn off and unplug the dishwasher.
- To determine if the circulation pump is faulty, you can check the pump motor’s resistance between the U, V, and W terminals. The ohmic value should fall between 5 and 18 ohms.
- If the measured resistance values are outside of this range, indicating a potential issue with the circulation pump motor, it’s advisable to replace the circulation pump.
- Consult your dishwasher’s manual for guidance on removing and installing a new pump.
- After replacing the pump, reconnect all components, power up the dishwasher, and run a wash cycle to confirm that the 3C error code has been resolved.
BLAC and/or BLDC Circulation Pump Motor Resistance Measurements

Asynchronous Circulation Pump Motor Resistance Measurements

Check the main control board:
- In the event of a potential main board issue, replace it if the error still occurs.
- After replacing the board, reconnect all components, power up the dishwasher, and run a wash cycle to confirm that the 3C fault code has been resolved.
Estimated Repair Cost:
- Circulation Pump Assembly: $150 – $260 USD (Part only).
- Main Control Board: $120 – $210 USD (Part only).
- Professional Labor: $100 – $200 USD (Depending on region).
Remember to prioritize safety throughout these troubleshooting steps.
Final Tip
The Samsung Dishwasher 3C error code is most commonly related to a circulation pump or motor issue, so start by checking for blockages in the filter and sump area. If the pump is clear but the error continues, inspect the wiring or consider a faulty motor or control board.
FAQs
What does the Samsung dishwasher 3C error code mean?
The Samsung dishwasher 3C error code, whether 3C1, 3C2, 3C3, 3C4, 3C5, or 3C6, stands for “Circulation Pump Error.” It means your dishwasher is facing issues with the circulation pump motor during the wash or rinse cycles.
How can I troubleshoot the 3C error code on my Samsung dishwasher if I suspect a problem with the circulation pump motor?
You can check the circulation pump motor’s resistance between the U, V, and W terminals, aiming for an ohmic value between 5 and 18 ohms. If the resistance values fall outside this range, it’s advisable to replace the circulation pump motor.
What should I do if the 3C fault code persists even after I’ve cleared obstructions, secured wire harness connections, and checked the circulation pump motor?
If the error persists, it might indicate a more complex issue with the dishwasher’s main control board. In this case, consider replacing the main board.

I am a master appliance repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.

