KitchenAid Dishwasher Error Code F3E2 — Shorted Thermistor/OWI Sensor
What this means
The F3E2 error code on KitchenAid dishwashers indicates the thermistor or OWI (Optical Water Indicator) sensor is shorted or has failed its calibration check. The sensor is reading values outside its expected range. The dishwasher may not heat water properly or may not complete cycles.
Alternate codes: 3-2
Step-by-step fix
3 stepsClean the OWI sensor
If your model has an OWI sensor, it may have food residue on its optical surface. Clean it gently with a soft cloth.
A dirty OWI sensor can fail calibration without actually being broken.
Reset the dishwasher
Unplug for 5 minutes, restore power, and run a test cycle.
Test and replace the sensor
If the code persists, test the sensor with a multimeter. A shorted sensor will read near 0 ohms. Replace it if faulty.
When to call a professional
If cleaning and replacement don't fix the code, the control board may need attention.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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