Samsung Dishwasher Error Code OC

OC stands for overflow detected. It means the overflow sensor in the base of the dishwasher has registered a signal of 1 volt or less for at least 3 seconds, which the control board interprets as excess water in the base pan. When this happens during operation, the dishwasher automatically runs a 5-minute drain cycle and then retries before displaying the code and halting.

A reset may temporarily clear the OC code, but the error will return if the underlying problem is not resolved. If water is present in the base pan, it must be removed and the source of the leak must be fixed. If the sensor or its connector is faulty, that component needs to be addressed before the code will stay clear.

Repair costs vary depending on the cause. If the issue is just a loose connector, there may be no parts cost at all. Replacing an overflow sensor typically costs between $20 and $60 for the part, while repairing a leak from a door gasket, hose, or pump seal can range from $30 to $150 or more in parts, plus labor if a technician is hired.

You should not continue running the dishwasher until the cause of the OC code is identified. If real water has leaked into the base pan, continued operation could result in water damage to your floor and cabinetry. Check under and around the unit for moisture before attempting to restart it.

Start by unplugging the dishwasher and checking the wiring connector at the overflow sensor for looseness or corrosion, as this is the first recommended diagnostic step. If the connector is secure, check the base pan for standing water and inspect hoses, the door gasket, and the pump area for leaks. If no leak is found and the connector is intact, the overflow sensor itself may need to be replaced.