Samsung Dishwasher Error Code 3C3

The 3C3 code on a Samsung dishwasher indicates a circulation pump fault, specifically a variant of the 3C error class. It means the control system has detected an abnormal condition in the pump motor circuit, which can involve the pump itself, the Inverter PBA, or the Main PBA. The dishwasher stops the cycle to prevent component damage when this fault is active.

You should not continue running the dishwasher while the 3C3 fault is active. A stalled or malfunctioning circulation pump means water is not being properly circulated, and forcing repeated cycles can overheat the pump motor or damage the Inverter PBA further. Address the fault before resuming use.

Repair costs vary depending on the failed component. Clearing a pump obstruction yourself costs nothing beyond time. Replacing the Inverter PBA or circulation pump motor typically runs between $80 and $250 in parts, plus labor if a technician is hired. Main PBA replacement is generally the most expensive option, with parts and labor potentially reaching $200 to $400 or more depending on the model and service rates in your area.

Some causes of the 3C3 error are DIY-accessible, particularly clearing foreign objects from the circulation pump impeller. Remove the lower rack, spray arm, and filter assembly to inspect the pump inlet for debris. However, diagnosing and replacing the Inverter PBA or Main PBA requires comfort with disassembly and basic electrical testing, so less experienced users may prefer to call a technician.

A reset may temporarily clear the 3C3 code, but if the underlying cause is not resolved, the fault will return as soon as the dishwasher attempts to run the circulation pump again. Resetting is useful for confirming whether the fault is intermittent, but it is not a repair. Always inspect the pump and associated boards after a reset to identify the root cause.