Viking Dishwasher Error Code 1-2

Error code 1-2 on a Viking dishwasher is a Motor Control Status Error. It means the motor control module has detected a motor operation failure in the Variable Speed Motor system. The dishwasher will stop running and display this code to alert you that the motor or its control circuit requires inspection. Common causes include wiring faults, a failed motor control board, or a defective wash motor.

No, you should not attempt to run the dishwasher while error code 1-2 is active. The motor system has been flagged as non-functional, and continued attempts to operate the unit could cause additional damage to the motor control board or the motor. Leave the dishwasher off and unplugged until the fault has been diagnosed and resolved.

Repair costs depend on which component has failed. If the issue is simply a loose or damaged wire, costs may be limited to a service call fee, typically in the range of $75 to $150. Replacing a motor control board can cost $200 to $500 or more depending on parts and labor. A failed wash motor replacement may run $250 to $600 or higher. Getting a diagnostic visit from a qualified technician will give you a more accurate estimate for your specific situation.

A knowledgeable DIYer can start by inspecting and reseating all wiring connectors between the motor control and the wash motor, since a disconnected wire is the simplest and most common cause. However, if the motor control board or the wash motor itself has failed, replacing these components involves working with line voltage and requires comfort with electrical diagnosis. If you are not experienced with appliance electrical systems, hiring a qualified technician is the safer choice.

A reset may temporarily clear the code, but if the underlying fault in the motor, motor control, or wiring still exists, the error will return as soon as the dishwasher attempts to run a cycle. Resetting without addressing the root cause is not a repair. The fault must be properly diagnosed and the defective component repaired or replaced to clear the code permanently.