Samsung Dishwasher Error Code 9C2

The 9C2 code signals a power supply error, meaning the dishwasher has detected that the incoming voltage is either too high or too low compared to the required 120V standard. As a protective measure, the control board stops all drive functions and puts the unit into a paused state. The issue is most often related to the home's electrical supply rather than a failed internal component.

The dishwasher automatically stops operating when 9C2 is triggered, so it will not continue a cycle in this state. You should not attempt to force the unit to run while an underlying voltage problem exists, as sustained overvoltage or undervoltage can damage the motor, pump, and control electronics. Resolve the electrical supply issue before resuming normal use.

If the fix is as simple as addressing a tripped breaker or replacing a faulty outlet, costs are generally in the range of $10 to $150 depending on whether you hire an electrician. If the problem requires replacing the main control board, repair costs typically range from $150 to $400 including parts and labor. Getting a diagnostic assessment from a qualified technician first can help identify the most cost-effective path.

Start by testing the wall outlet with a multimeter to confirm it is supplying approximately 120V AC. If the voltage is out of range, check the circuit breaker and look for other appliances sharing the same circuit. If the outlet tests correctly, inspect the power cord and internal terminal connections for damage. Persistent errors after those checks may point to a faulty control board requiring professional diagnosis.

A reset may temporarily clear the display, but the error will return if the underlying voltage problem is not corrected. Because 9C2 is triggered by a live electrical condition, the fault will reappear as soon as the dishwasher detects the abnormal voltage again. Address the power supply issue first, then reset the unit.