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Error code reference

Jenn-Air Dishwasher Error Code 8-3

Drain motor electrical problem

Jenn-Air codesJenn-Air dishwasher codes

Drain motor electrical problem — open fuse on control to drain motor.

First step from the service manual

Refer to Fuse Service and Diagnostic Checks on Page 1 (next to Meter Check diagram).

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

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What 8-3 means on a Jenn-Air dishwasher

Error code 8-3 on a Jenn-Air dishwasher indicates the control board has detected an electrical fault in the drain motor circuit. Specifically, the board is reading an open fuse on the control side of the drain motor circuit, meaning continuity is broken between the control board and the drain motor. This is an electrical protection fault, not a mechanical drain failure. The first diagnostic step per the service documentation is to perform the Fuse Service and Diagnostic Checks referenced on Page 1, adjacent to the Meter Check diagram.

For homeowners, this error means the dishwasher's brain detected a break in the electrical path that powers the drain motor. The drain motor is the component responsible for pumping water out of the tub at the end of each wash and rinse cycle. A blown fuse on the control board is protecting the circuit from damage, which could be caused by a wiring issue, a failed drain motor drawing too much current, or a fault within the control board itself. The dishwasher will not complete a cycle or drain properly while this code is active.

This code requires electrical diagnosis with a multimeter before replacing parts. A blown fuse on the control board can sometimes be a symptom of a deeper problem in the drain motor or wiring harness, so replacing the fuse alone without further testing may result in the fuse blowing again.

Source: manufacturer service documentation.

Common causes of 8-3

  1. 01

    Blown control board fuse on drain motor circuit

    Part replacement

    The fuse on the control board protecting the drain motor circuit has opened, cutting power to the drain motor. This is the direct cause of the 8-3 code and is identified through the Fuse Service and Diagnostic Checks on Page 1.

  2. 02

    Failed or shorted drain motor

    Part replacement

    A drain motor that has failed internally and is drawing excessive current can blow the control board fuse, triggering 8-3. If the motor windings are shorted or the motor has seized, simply replacing the fuse will not resolve the code.

  3. 03

    Damaged wiring harness between control board and drain motor

    Part replacement

    Chafed, pinched, or burnt wiring in the harness connecting the control board to the drain motor can create a short circuit that blows the protective fuse. Inspect the harness routing for visible damage before replacing any components.

  4. 04

    Faulty control board

    Part replacement

    If the fuse and drain motor both test within spec, the control board itself may have an internal fault causing an open condition on the drain motor output circuit. This is the least common cause but should be considered after all other components are ruled out.

See the test procedure for each cause

Frequently asked questions about 8-3

What does error code 8-3 mean on a Jenn-Air dishwasher?
Error code 8-3 means the control board has detected an open fuse on the circuit that powers the drain motor. This is an electrical fault, not a blocked drain. The control board cannot complete the drain motor circuit, so the dishwasher will not drain. The fuse is a protective component on the control board itself, and diagnosis starts with the Fuse Service and Diagnostic Checks outlined in the service documentation.
Can I still use my Jenn-Air dishwasher with error code 8-3 active?
No, you should not run the dishwasher while code 8-3 is active. The drain motor circuit is broken, meaning the machine cannot pump water out of the tub. Running a cycle will result in standing water in the tub and the wash cycle failing to complete. Continuing to run the unit without resolving the fault risks water damage and does not clear the code.
How do I fix error code 8-3 on a Jenn-Air dishwasher?
Start with the Fuse Service and Diagnostic Checks on Page 1 of the service documentation, located next to the Meter Check diagram. Use a multimeter to test the fuse on the control board for continuity. If the fuse is open, replace it, but also test the drain motor and wiring harness before reassembling, because a shorted motor or damaged wiring harness will blow the new fuse again. If the fuse and motor both test good, the control board may need replacement.
How much does it cost to fix error code 8-3 on a Jenn-Air dishwasher?
Cost depends on which component has failed. If the control board fuse is the only issue, the repair is relatively inexpensive, though the board may need to be replaced as an assembly if the fuse is not serviceable separately. A replacement drain motor typically costs between $50 and $150 for the part. A new control board is the most expensive outcome, often ranging from $150 to $350 or more for the part alone. Adding professional labor, expect a total repair cost between $150 and $500 depending on what is found during diagnosis.
Will replacing the drain motor fix the 8-3 error code on a Jenn-Air dishwasher?
Replacing the drain motor may fix the code if the motor is shorted and caused the control board fuse to blow, but it is not guaranteed to resolve the issue on its own. The open fuse on the control board must also be addressed. If the fuse is not replaced or the board is not repaired, the new motor will have no power. Follow the Fuse Service and Diagnostic Checks first to determine exactly what failed before ordering parts.

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