mypros+
Error code reference

Jenn-Air Dishwasher Error Code 3-3

OWI (optical soil sensor) failure or failed calibration.

Jenn-Air codesJenn-Air dishwasher codes

OWI (optical soil sensor) failure or failed calibration.

First step from the service manual

1. Unplug dishwasher or disconnect power. 2. Remove OWI and check lens surface. Lens should be clear and surface should be free of debris and scratches. Clean lens or replace OWI as needed. 3. Check all connections in Soil Sensing Circuit with meter. Run Diagnostics Cycle after installing new OWI to force calibration on next regular wash cycle.

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

MyPros+ Max

Get the full diagnostic procedure for 3-3.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 3-3 means on a Jenn-Air dishwasher

Error code 3-3 on a Jenn-Air dishwasher indicates a fault in the Soil Sensing Circuit, specifically involving the OWI (Optical Water Indicator) sensor. The control board detected that the OWI either failed to respond correctly during operation or did not complete its calibration sequence. The OWI uses an optical lens to measure water turbidity and adjust wash cycles based on how dirty the water is. Failure can stem from a contaminated or scratched lens, a wiring or connection fault in the soil sensing circuit, or the sensor itself failing internally.

For homeowners, this means your dishwasher's automatic soil-sensing feature is not working properly. The OWI is the small sensor that detects how dirty your wash water is and adjusts the cycle length accordingly. When it fails or cannot calibrate, the dishwasher throws code 3-3 and stops trusting that sensor's data. The most common fix is simply cleaning the OWI lens, which can get coated with grease, hard water deposits, or food residue over time. If cleaning the lens does not resolve the error, the sensor or its wiring connections may need to be replaced. After installing a new OWI, running a Diagnostics Cycle forces calibration on the next regular wash cycle.

Source: manufacturer service documentation.

Common causes of 3-3

  1. 01

    Contaminated or scratched OWI lens

    Wiring / connection

    Grease, hard water mineral deposits, or food debris on the OWI lens can block the optical sensor and prevent accurate soil readings, triggering a calibration failure. A scratched lens causes the same optical interference and requires OWI replacement.

  2. 02

    Faulty wiring or loose connections in Soil Sensing Circuit

    Wiring / connection

    Corroded, loose, or damaged connectors between the OWI sensor and the control board interrupt the signal path and cause the control board to register a sensor fault. Checking all connections with a meter can confirm whether continuity is broken.

  3. 03

    Failed OWI sensor

    Part replacement

    The OWI sensor itself can fail internally due to age, moisture intrusion, or physical damage, preventing it from transmitting valid data to the control board regardless of lens condition or wiring integrity. Replacement of the OWI is required in this case.

  4. 04

    OWI calibration not completed after prior service

    Wiring / connection

    If the OWI was previously replaced or the dishwasher lost power during a calibration sequence, the sensor may be in an uncalibrated state, which the control board reports as code 3-3. Running a Diagnostics Cycle after reinstalling or replacing the OWI forces the calibration process to complete.

See the test procedure for each cause

Frequently asked questions about 3-3

What does error code 3-3 mean on a Jenn-Air dishwasher?
Code 3-3 means the control board detected a failure or failed calibration in the OWI (Optical Water Indicator), also called the optical soil sensor. This sensor monitors water turbidity to automatically adjust wash cycles. The error appears when the sensor cannot communicate valid data to the control board, either due to a dirty or damaged lens, a wiring fault, or a failed sensor.
How do I fix error code 3-3 on my Jenn-Air dishwasher?
Start by unplugging the dishwasher, then locate and remove the OWI sensor and inspect its lens. Clean any grease, mineral buildup, or debris off the lens surface using a soft cloth. If the lens is scratched or cleaning does not clear the code, replace the OWI. After reinstalling or replacing the sensor, check all wiring connections in the Soil Sensing Circuit with a meter for continuity, then run a Diagnostics Cycle to force calibration on the next regular wash.
Can I still use my Jenn-Air dishwasher when code 3-3 is showing?
In many cases the dishwasher will still run cycles with code 3-3 active, but the auto-sensing soil detection feature will not function correctly, meaning the machine cannot automatically adjust cycle length based on water dirtiness. Continuing to use it is not a safety hazard, but wash performance may be inconsistent. Addressing the OWI issue promptly prevents longer-term wear from improperly timed cycles.
How much does it cost to fix a 3-3 error on a Jenn-Air dishwasher?
If the fix is simply cleaning the OWI lens, there is no parts cost. A replacement OWI sensor typically costs between $20 and $60 for the part depending on the specific model. If you hire a technician, expect a service call fee plus labor, which can bring the total to $100-$200. This is a repair many homeowners can complete themselves after unplugging the appliance, since it involves removing the sensor, inspecting connections, and running a Diagnostics Cycle.
Does replacing the OWI sensor on a Jenn-Air dishwasher require calibration?
Yes. After installing a new OWI sensor, you need to run a Diagnostics Cycle, which signals the dishwasher's control board to force calibration during the next regular wash cycle. Skipping this step can leave the sensor in an uncalibrated state, which may cause code 3-3 to reappear even with a functioning new part.

Related Jenn-Air dishwasher codes

All Jenn-Air dishwasher codes
View all 69 Jenn-Air dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass