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Jenn-Air Dishwasher Error Code Extra Rinse LED + Clean LED

Turbidity Sensor failure detected during Field Service Test.

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Turbidity Sensor failure detected during Field Service Test.

First step from the service manual

Run Field Service Test to confirm; check turbidity sensor and wiring.

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

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What Extra Rinse LED + Clean LED means on a Jenn-Air dishwasher

The simultaneous illumination of the Extra Rinse LED and Clean LED on a Jenn-Air dishwasher indicates a turbidity sensor failure detected during the Field Service Test routine. The turbidity sensor is responsible for measuring the clarity of wash water during a cycle, allowing the control board to determine how soiled the water is and adjust cycle parameters accordingly. When this sensor fails or returns readings outside the expected range, the control system flags the fault and communicates it through this specific LED combination.

The turbidity sensor operates by shining an infrared beam through the wash water and measuring how much light is scattered or absorbed by suspended particles. A functioning sensor produces a predictable signal voltage that the control board interprets. If the sensor is fouled with grease or mineral deposits, physically damaged, or if its wiring harness has developed an open circuit, short, or corroded connector, the control board will not receive a valid signal and will trigger the fault.

Diagnosing this condition begins with running the Field Service Test to confirm the fault is active and repeatable. From there, the technician should inspect the turbidity sensor physically for contamination or damage, then check the wiring harness for continuity and secure connections at both the sensor and control board ends. A sensor that cleans up and reads correctly after cleaning may not require replacement, but one with damaged circuitry or broken wiring will need the appropriate component replaced to restore proper operation.

Source: manufacturer service documentation.

Common causes of Extra Rinse LED + Clean LED

  1. 01

    Contaminated turbidity sensor

    Wiring / connection

    Grease, food debris, or mineral scale buildup on the sensor lens can block the infrared signal and cause false failure readings. Inspect the sensor for visible fouling and clean it carefully before replacing.

  2. 02

    Faulty wiring harness or connector

    Wiring / connection

    Corrosion, loose terminals, or a broken wire in the harness between the turbidity sensor and the control board can interrupt the signal. Check continuity through the harness and inspect connector pins for damage or oxidation.

  3. 03

    Failed turbidity sensor

    Part replacement

    The sensor's internal infrared emitter or receiver can fail outright, producing no signal or a signal outside the acceptable range. If the sensor checks out clean but still fails the Field Service Test, the sensor itself likely needs replacement.

  4. 04

    Control board fault

    Part replacement

    In less common cases, the main control board may misinterpret or fail to process the turbidity sensor signal correctly due to a board-level component failure. This is typically considered after the sensor and wiring have been confirmed good.

See the test procedure for each cause

Frequently asked questions about Extra Rinse LED + Clean LED

What does Extra Rinse LED + Clean LED mean on a Jenn-Air dishwasher?
When the Extra Rinse LED and Clean LED illuminate together on a Jenn-Air dishwasher, it signals a turbidity sensor failure detected during the Field Service Test. The turbidity sensor monitors wash water clarity to help the dishwasher optimize its cycle. This LED combination is the dishwasher's way of reporting that the sensor is not functioning within expected parameters. A technician should run the Field Service Test to confirm the fault before proceeding with diagnostics.
How do I fix the turbidity sensor fault on my Jenn-Air dishwasher?
Start by running the Field Service Test to confirm the fault is active. Then inspect the turbidity sensor for grease or mineral deposits and clean it if needed, since contamination is a common cause. Next, check the wiring harness and connectors for continuity and corrosion. If the sensor and wiring both check out, the sensor itself may need to be replaced.
Will resetting my Jenn-Air dishwasher clear this error?
A power reset may temporarily clear the displayed LEDs, but it will not fix the underlying turbidity sensor problem. If the sensor or wiring fault is still present, the error will return the next time the Field Service Test is run or the dishwasher attempts a wash cycle. Proper diagnosis and repair of the sensor or its wiring is required for a lasting fix.
Is it safe to run my Jenn-Air dishwasher with this error showing?
The dishwasher may still complete cycles with a turbidity sensor fault, but it will not be able to accurately monitor water clarity or adjust cycle parameters based on soil level. This can result in less effective cleaning or inefficient water use. It is best to have the issue diagnosed and repaired rather than continuing to run the unit with a known sensor fault.
How much does it cost to repair a turbidity sensor fault on a Jenn-Air dishwasher?
Repair costs depend on the root cause. If the sensor only needs cleaning, the cost is primarily a service call fee, typically in the range of $75 to $150. Replacing the turbidity sensor itself usually adds $50 to $120 in parts. If the control board is found to be at fault, parts and labor combined can range from $200 to $450 or more depending on the specific board and labor rates in your area.

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