Jenn-Air Dishwasher Error Code 3-3 or F3E3

If your Jenn-Air dishwasher is displaying the error code 3-3 or F3E3, it indicates an issue related to the Optical Water Indicator (OWI) calibration or a potential failure in the drain hose check valve. This can lead to the undesirable situation of dirty water backflowing into the dishwasher. Here’s a step-by-step guide to help you diagnose and resolve this error code on your own:

1. Initial Inspection:

• Disconnect the dishwasher drain hose from the air gap or the garbage disposal (if no air gap is present).
• Pour water through the drain hose to check if water backs up into the dishwasher tub.

2. Identifying the Issue:

• If water backs up, it suggests a failed check valve in the drain hose connected to the drain pump. Replace the affected portion of the drain hose.
• If no water backs up, proceed to reconnect the hose and move on to the Service Diagnostics Test.

3. Service Diagnostics Test:

• Consult the tech sheet for your dishwasher model to run the Service Diagnostics Test. Follow the provided instructions carefully.
• During the OWI test in diagnostic mode, observe the soil level indication. Low soil level is expected. If high soil level is indicated, proceed to the next steps.

4. OWI Sensor Maintenance:

• Unplug the dishwasher from the power source.
• Clean the OWI sensor thoroughly to ensure accurate readings. The OWI sensor is typically located within the dishwasher.

5. Reassembly and Calibration:

• Reassemble the dishwasher components, ensuring all connections are secure.
• Plug the dishwasher back in to restore electrical power.
• Run the diagnostic test cycle to allow the electronic control board to calibrate the OWI sensor for the next cycle.

6. Normal Wash Cycle:

• Run a normal wash cycle to test if the error code persists.

7. Error Code Still Present?

• If the error code persists, consider replacing the thermistor/OWI sensor. This component may be faulty and causing the calibration issue.

By following these DIY steps, you can systematically identify and address the Jenn-Air dishwasher error code 3-3 or F3E3. Remember to always refer to your dishwasher’s tech sheet for model-specific instructions and guidelines. If the issue persists, it may be advisable to seek professional assistance.