Samsung Dishwasher Error Code 3C5

The 3C5 code indicates a circulation pump error, sharing the same failure conditions as the base 3C fault code. It means the dishwasher's control system has detected a problem with the circulation pump, which is responsible for moving water through the spray arms. The issue can be mechanical, such as a blockage, or electronic, involving the Inverter PBA or Main PBA. The dishwasher will not complete a wash cycle until the fault is resolved.

No, you should not attempt to run the dishwasher while the 3C5 error is active. The code indicates the circulation pump is not operating correctly, and continued use could cause additional stress on the pump motor or control boards. Disconnect power to the unit and address the fault before running another cycle.

Repair costs vary depending on the cause. Clearing a foreign object from the pump yourself costs nothing beyond your time. A replacement circulation pump typically runs in the range of $80 to $200 for the part alone. Replacing an Inverter PBA or Main PBA can add $100 to $300 or more in parts, with additional labor costs if you use a technician. Getting a diagnostic assessment first helps clarify which component is at fault before committing to parts.

Some causes of the 3C5 error are DIY-friendly. Start by checking the pump area for foreign objects like broken glass or debris by removing the lower spray arm and filter. If the pump is clear and spins freely, diagnosing and replacing the Inverter PBA or Main PBA typically requires more technical knowledge and comfort working with electronics. If you are not confident working with appliance control boards, a qualified technician is recommended.

A reset may temporarily clear the code, but it will return if the underlying problem is not fixed. To reset, disconnect the dishwasher from power for a few minutes, then restore power. If the 3C5 code reappears when you start a cycle, the root cause, whether a blockage, failed pump, or board issue, must be diagnosed and corrected.