KitchenAid dishwasher Error Code F3 E2

What does F3 E2 mean?

Optical Water Indicator unable to read properly — dirty lens or failed sensor.

Common causes

• Calcium / film on OWI lens
• Failed OWI sensor
• Bad wiring

Diagnostic & testing steps

1. 1. Clean OWI lens with vinegar (most common fix)
2. 2. Run diagnostic mode
3. 3. Replace OWI assembly if needed

Tools required

• White vinegar
• Soft cloth

OEM parts & part numbers

OWI Sensor

Part numbers: W10750634