KitchenAid Dishwasher Error 3-2
⚡ Quick Answer: The KitchenAid dishwasher error code 3-2 indicates a malfunction in the drain pump, typically related to a shorted thermistor or Optical Water Indicat... ✅ DIY Fixable
What Does Error 3-2 Mean?
The KitchenAid dishwasher error code 3-2 indicates a malfunction in the drain pump, typically related to a shorted thermistor or Optical Water Indicator (OWI) sensor circuit. This error may cause unusual noises during operation and halt the dishwasher's functionality until resolved. The issue often relates to problems with water temperature sensing or optical water detection, and may require inspecting wiring and sensors for faults.
Common Symptoms:
- Dishwasher displays error code 3-2 (sometimes shown as F3E2) on control panel
- Dishwasher may stop operating and require error resolution before continuing operation
- Possible issues detected with water temperature sensing or optical water detection
Possible Causes
- Shorted thermistor/OWI sensor (medium)
- Damaged or faulty wiring between sensor and control board (medium)
How to Fix Error 3-2
DIY Fix Basic user checks and reset
- Ensure the dishwasher is turned off and safely disconnected from power
- Check for visible water inside the tub or obstructions near bottom sensors
- Reconnect power and observe if the error persists
- If your model allows, run a simple wash cycle to see if the error appears again
Technician Only Inspect and replace OWI/Thermistor sensor and wiring
- Disconnect dishwasher from electrical power at the breaker or plug
- Remove access panels to locate the thermistor/Optical Water Indicator sensor and associated wiring harness
- Visually inspect wiring from sensor to control board for damage, corrosion, or shorts
- Test sensor continuity using a multimeter (if out of expected range, replace sensor)
- Replace any damaged wiring harness or connectors
- Restore power and test operation to confirm error clearance
Parts needed: Thermistor/Optical Water Indicator (OWI) sensor, Wiring harness connectors
- If error persists after sensor and wiring inspection/replacement
- If internal diagnostics reveal additional issues (e.g., multiple error codes)
- If unsure about safely accessing internal components
Next step
Choose the next step for 3-2
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does 3-2 error mean on KitchenAid dishwasher?
It indicates a malfunction related to the drain pump, often due to a shorted thermistor or OWI sensor.
Can I fix KitchenAid dishwasher 3-2 error myself?
Yes, you can perform basic checks like resetting the dishwasher and inspecting for obstructions.
How much does it cost to fix 3-2 error?
The repair cost ranges from $50 to $200 for parts, plus labor depending on technician rates.
When should I call a technician for 3-2?
Call a technician if the error persists after inspecting the sensor and wiring, or if multiple error codes appear.
Sources & References
Data last verified: 2026-07-31
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