Samsung Dishwasher Error Code 5C3

The 5C3 code means the dishwasher recorded a drain pump error 11 times across multiple retry attempts separated by 5-minute pauses. After the third pause condition, the control system shuts down the driving components and displays 5C3. The code specifically indicates a failure of the Inverter PBA, the circuit board responsible for controlling the drain pump motor.

No. The 5C3 code means the dishwasher has already shut down its drain pump drive components as a protective measure. Running the appliance in this state can leave standing water inside the tub, which can lead to odors, mold growth, and potential secondary damage to internal components. The dishwasher should not be used until the Inverter PBA and related components have been inspected and repaired.

Repair costs depend on whether the fix involves clearing a blockage, replacing wiring, or installing a new Inverter PBA. A wiring or connector repair may cost relatively little in parts, while an Inverter PBA replacement typically ranges from $80 to $250 or more for the part alone, plus labor if a technician is involved. Total professional repair costs commonly fall between $150 and $400 depending on the service provider and parts pricing.

A reset may temporarily clear the code, but because the error accumulates over 11 failed drain attempts with built-in retry cycles, it will almost certainly return if the underlying Inverter PBA problem has not been resolved. Resetting without repairing the root cause can also result in the driving components shutting down again, potentially complicating further diagnosis.

Begin by checking for any drain blockages at the filter, drain hose, and check valve, and inspect the wiring harness connectors between the Inverter PBA and the drain pump for damage or corrosion. If the drain path is clear and connections are secure, the Inverter PBA itself will need to be tested and most likely replaced. This repair involves working with the dishwasher's internal electronics and is recommended for technicians or experienced DIYers comfortable with board-level diagnosis.