Samsung Dishwasher Error Code 3C

The 3C error code indicates a fault in the BLDC circulation pump system, which is the motor-driven pump responsible for circulating water during wash cycles. The code includes sub-codes (L1 through L6, L8, and Ld) that identify the specific fault type, ranging from overcurrent and voltage issues to a locked pump rotor or a communication failure between the main and inverter control boards. Checking for a jammed pump is the recommended starting point.

No, you should not run the dishwasher while the 3C error is active. The machine has detected a fault in the circulation pump system and will not complete a wash cycle correctly. Continuing to run it could potentially worsen damage to the pump motor or control boards, particularly if an overcurrent or overtemperature condition is present.

Repair costs depend on the faulty component. Clearing a debris jam costs nothing beyond your time. A replacement BLDC circulation pump typically runs in the range of $80 to $200 for parts. An Inverter PBA replacement can cost between $100 and $250 for the board alone. If professional labor is involved, expect to add $100 to $200 or more depending on your area and the technician's rates.

In some cases, yes. If the fault is caused by debris jamming the pump impeller, you can resolve it by removing the lower spray arm and filter assembly, clearing the obstruction, and restarting the dishwasher. However, faults caused by a failed pump motor, damaged inverter board, or defective Main PBA require component replacement, which may be beyond a basic DIY repair depending on your comfort level with appliance electronics.

A power reset, done by unplugging the dishwasher or turning off the circuit breaker for a few minutes, may temporarily clear the code. However, if the underlying fault is still present, the 3C error will return once the dishwasher attempts to run a cycle. A reset alone is not a repair and should only be used as part of the diagnostic process.