W
f3 e1
Moderate
Whirlpool · Dishwashers
Thermistor/OWI sensor open circuit
Quick Answer
Error code F3 E1 on your Whirlpool Dishwashers means: Thermistor/OWI sensor open circuit. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Open thermistor (water temperature sensor)
  2. Failed OWI (Optical Water Indicator) sensor
  3. Damaged sensor wiring harness
  4. High resistance in sensor circuit
How to Fix It
1
Step 1: Disconnect power to the dishwasher.
2
Step 2: Locate the thermistor and OWI sensor.
3
Step 3: Check the wiring harness between the control and the sensor for high resistance.
4
Step 4: Repair any damaged wiring.
5
Step 5: If wiring is good, replace the thermistor or OWI sensor.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Thermistor
OWI sensor
Wire harness
Related Error Codes
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