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Error code reference

Jenn-Air Dishwasher Error Code 10-3

Drying fan error (on models with fan)

Jenn-Air codesJenn-Air dishwasher codes

Drying fan error (on models with fan) — loose connection in fan circuit and/or open fan motor.

First step from the service manual

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

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

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What 10-3 means on a Jenn-Air dishwasher

Error code 10-3 on a Jenn-Air dishwasher indicates the control board has detected a fault in the drying fan circuit. Specifically, the board is seeing either an open circuit or an out-of-range resistance reading from the fan motor or its associated wiring. This code only applies to Jenn-Air dishwasher models equipped with a powered drying fan. Diagnosis starts with resistance testing of the fan motor windings and every connection point in the fan circuit before replacing any parts.

For homeowners: your dishwasher has a small fan motor that helps circulate warm air during the drying cycle. When the control board tries to run this fan and gets no response, or detects a broken electrical path, it logs code 10-3 and stops the drying fan operation. The most common culprits are a disconnected or corroded wiring connector in the fan circuit, or a fan motor whose internal windings have failed and gone open. Dishes may come out wet or the cycle may halt depending on how the dishwasher handles this fault. The washing and rinsing functions are typically unaffected, but drying performance will be compromised or completely absent.

Source: manufacturer service documentation.

Common causes of 10-3

  1. 01

    Open or loose wiring connector in fan circuit

    Wiring / connection

    A connector in the harness between the control board and the drying fan motor can work loose, corrode, or develop a broken terminal, creating an open circuit. This is the most common trigger for 10-3 and often requires no parts, just reseating or repairing the connector.

  2. 02

    Failed drying fan motor (open windings)

    Part replacement

    The fan motor's internal windings can break down over time, resulting in an open circuit that the control board detects as a fault. A multimeter check across the motor terminals will show infinite or no resistance when the windings have failed, and the motor must be replaced.

  3. 03

    Broken or damaged wiring in fan circuit

    Part replacement

    Physical damage to the wiring harness, such as a pinched or burned wire between the control board and fan motor, can create an open circuit even when all connectors appear seated. Inspect the full length of the harness for visible damage and test continuity on each wire.

  4. 04

    Faulty control board not sending or reading fan circuit signal

    Part replacement

    If the fan motor and all wiring test within spec but the error persists, the control board itself may have a failed output or sensing circuit for the fan. This is the least likely cause and should only be considered after all other components check out.

See the test procedure for each cause

Frequently asked questions about 10-3

What does error code 10-3 mean on a Jenn-Air dishwasher?
Code 10-3 means the control board has detected a problem in the drying fan circuit, specifically an open circuit or a fan motor that is not responding. This code only appears on Jenn-Air dishwasher models that include a powered drying fan. The fault can be caused by a loose wiring connector, damaged wiring, or a failed fan motor with open windings.
How do I fix error code 10-3 on my Jenn-Air dishwasher?
Start by disconnecting power to the dishwasher, then locate the drying fan motor and inspect all connectors in the fan circuit for looseness or corrosion. Use a multimeter to check resistance across the fan motor terminals and continuity through each wire in the circuit. Reseat any loose connectors and repair or replace any open wiring or a failed motor. Reconnect power and run a cycle to verify the code clears.
Can I still use my Jenn-Air dishwasher with a 10-3 error code active?
The dishwasher will likely still wash and rinse normally, but drying performance will be reduced or completely absent since the fan is not operating. Running the machine in this state is not an electrical or safety hazard, but dishes will come out wet. Address the fault at your earliest convenience to restore full function.
How much does it cost to fix a 10-3 error on a Jenn-Air dishwasher?
If the fix is a loose connector, the cost is essentially zero beyond your time. A replacement drying fan motor for a Jenn-Air dishwasher typically runs between $30 and $80 for the part. If a technician is needed, expect one to two hours of labor in addition to the part cost. Replacing the fan motor is a moderate DIY repair that requires basic disassembly of the dishwasher door or interior panels depending on the model.
How do I test the drying fan motor on a Jenn-Air dishwasher showing code 10-3?
Disconnect power to the dishwasher first. Access the drying fan motor, disconnect its wiring harness, and place your multimeter probes on the motor terminals. A functioning motor will show a finite resistance reading in the range specified in your model's service manual; an open motor will show infinite resistance or OL on the meter. Also test each wire in the circuit for continuity from end to end to rule out a broken wire before replacing the motor.

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