Thermistor or OWI Sensor Error
F3-E2
The thermistor or water temperature sensor signal is shorted. The OWI sensor or Optical Water Indicator signal is shorted.
24″ Microfiltration Dishwashers (square sump) – Optical Water Indicator failed to calibrate.
Whirlpool Dishwasher F3-E2 Error Code Error Code Possible Causes
- The OWI water temperature sensor (thermistor) wire harness is defective.
- The OWI water temperature sensor (thermistor) is defective.
- The Main PCB is defective.
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This information is provided for educational purposes only. Please consult the appropriate Service Mode or Technical Document for your model. Always take proper safety precautions when installing or repairing any major appliance.