Problem: OWI failed to calibrate or drain hose check valve issue
How to Fix Dishwasher Error
- Turn off power and water supply to the dishwasher.
- Remove the lower access panel.
- Check the drain hose routing for proper high loop installation.
- Inspect the drain hose check valve for debris or damage.
- Remove the drain hose from air gap or sink connection.
- Flush the drain hose with hot water to remove obstructions.
- If the check valve is faulty, replace the entire drain hose assembly.
- Test the OWI (turbidity) sensor operation by running calibration cycle.
- If the sensor fails calibration repeatedly, replace the OWI sensor assembly.
- Clear error codes and verify proper operation.
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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Browse all Maytag error codes: Maytag Error Codes










