Error code reference

KitchenAid Dishwasher Error Code 10-2

Vent wax motor electrical problem

KitchenAid codesKitchenAid dishwasher codes

Vent wax motor electrical problem - loose connection in vent circuit and/or open vent wax motor, open fuse on control, or vent drive circuit on control (not all models).

First step from the service manual

Unplug dishwasher or disconnect power and check resistances of vent wax motor and all connections in the vent circuit. Fix/replace open connection/part.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 10-2 means on a KitchenAid dishwasher

Error code 10-2 on a KitchenAid dishwasher indicates the control board has detected an electrical problem in the vent wax motor circuit. Specifically, the board is reading an open circuit or abnormal resistance in the vent wax motor or somewhere along its wiring path. The vent wax motor controls the vent door that releases steam during and after the drying cycle. The fault triggers when the control board cannot confirm proper electrical continuity through the vent circuit during operation.

For homeowners, the vent wax motor is a small actuator that opens a flap on the dishwasher door to let steam escape during drying. When the dishwasher shows code 10-2, it has detected that this component is either not receiving a proper electrical signal or is not functioning correctly electrically. This could mean a wire connection has come loose somewhere between the control board and the wax motor, or the wax motor itself has failed internally.

The first step before replacing any parts is to disconnect power to the dishwasher and use a multimeter to test the resistance of the vent wax motor and inspect every connection in the vent circuit. A healthy wax motor will show a specific resistance reading; an open reading indicates the motor has failed. Loose or corroded connector terminals can also cause this code and may be resolved without replacing any parts.

Source: manufacturer service documentation.

Common causes of 10-2

  1. 01

    Loose or disconnected wiring connection in vent circuit

    Wiring / connection

    A connector along the wiring harness between the control board and the vent wax motor has come loose or partially separated, breaking continuity in the circuit. This is the first thing to inspect since it can cause an open circuit reading without any component failure.

  2. 02

    Failed vent wax motor (open winding)

    Part replacement

    The vent wax motor has developed an open internal winding, meaning current cannot pass through it and the control board reads no continuity. A multimeter test across the motor terminals will show an infinite or OL resistance reading instead of a normal finite resistance value.

  3. 03

    Corroded or damaged connector terminals

    Part replacement

    Moisture exposure can cause corrosion on the wiring harness terminals that connect to the vent wax motor, increasing resistance or fully breaking the circuit. Corroded terminals may need cleaning or the connector may need replacement if the terminal pins are damaged beyond cleaning.

  4. 04

    Damaged wiring harness segment

    Part replacement

    A section of the wiring harness running to the vent wax motor has been pinched, chafed, or broken, creating an open circuit. This is less common but can occur if the harness is routed near moving parts or sharp edges inside the door panel.

See the test procedure for each cause

Frequently asked questions about 10-2

What does error code 10-2 mean on a KitchenAid dishwasher?
Code 10-2 means the control board has detected an electrical problem in the vent wax motor circuit. This includes either an open circuit caused by a loose or broken wiring connection, or a failed vent wax motor that is no longer conducting electricity properly. The vent wax motor controls the steam vent door on the dishwasher during the drying cycle.
How do I fix error code 10-2 on my KitchenAid dishwasher?
Start by unplugging the dishwasher or shutting off the circuit breaker. Access the vent wax motor, which is typically located in the door panel, and use a multimeter to test its resistance. Also inspect every connector in the vent circuit for loose, corroded, or damaged terminals. If a connection is loose, reseat it and clear the code. If the wax motor reads open (infinite resistance) on the multimeter, replace the motor. A technician is advisable if you are not comfortable working inside the door panel or interpreting resistance readings.
Can I still use my KitchenAid dishwasher with a 10-2 error code?
The dishwasher may still wash dishes, but the drying cycle will not function correctly because the vent wax motor controls steam release during drying. Running the appliance in this condition means dishes will not dry properly and the code will persist. There is no safety risk from continuing to use it for washing, but the underlying electrical fault should be repaired to restore full function.
How much does it cost to fix a 10-2 error code on a KitchenAid dishwasher?
If the problem is only a loose connector, the repair costs nothing beyond your time. A replacement vent wax motor part typically costs between $20 and $60 depending on the model. If you hire a technician, expect a service call fee plus labor, which commonly brings the total to $100 to $200. Diagnosing this yourself with a multimeter before calling a technician can save significant money if the fix turns out to be a loose connection.
How do I test the vent wax motor on a KitchenAid dishwasher showing code 10-2?
Disconnect power to the dishwasher first. Remove the inner door panel to access the vent wax motor and disconnect its wiring harness connector. Set a multimeter to the resistance (ohms) setting and probe both terminals on the motor. A functional wax motor will show a measurable resistance reading. If the meter reads OL or infinite resistance, the motor winding is open and the motor needs to be replaced. Also test continuity along each wire in the circuit from the motor back toward the control board to rule out a break in the harness.

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