KitchenAid Dishwasher Error Code 10-3

The 10-3 code indicates a drying fan error, which applies to KitchenAid dishwasher models equipped with a drying fan. It means the control has detected an open circuit or fault condition in the fan circuit, which can involve a loose wiring connection, a failed fan motor, or a problem with the fan drive circuit on the control board. The drying function is typically impaired when this code is active.

The dishwasher may still complete wash cycles with a 10-3 error, but the drying performance will be significantly reduced since the fan is not operating correctly. There is no immediate safety hazard from this specific fault, but running the appliance with an unresolved electrical issue in any circuit is not recommended for extended periods. Addressing the fault promptly prevents potential worsening of the underlying problem.

Resetting the dishwasher by unplugging it or cutting power may temporarily clear the code from the display, but the error will return if the underlying fault in the fan circuit has not been corrected. A reset alone does not repair an open wiring connection or a failed fan motor. The code should be treated as an indicator that physical diagnosis and repair are needed.

A knowledgeable DIYer can attempt some of the diagnostic steps, specifically checking for loose connectors and inspecting the wiring harness after unplugging the dishwasher. Testing the fan motor with a multimeter requires basic electrical knowledge and is manageable for many home repairers. However, if the control board's fan drive circuit is the cause, replacement of the board is more involved and some people prefer to have a technician handle that repair.

Repair costs vary depending on the root cause. Reconnecting a loose wiring connector costs nothing beyond your time, while a replacement fan motor typically ranges from roughly $30 to $80 for the part, plus labor if a technician is hired. If the main control board is the cause, parts alone can range from $100 to $250 or more, making professional diagnosis important before committing to that repair.