KitchenAid Dishwasher Error Code 3-2: How to Fix It

Q: What does error code 3-2 mean on my KitchenAid dishwasher?

Error code 3-2 (or F3 E2) means the thermistor temperature sensor is shorted or malfunctioning. This sensor monitors water temperature, and when it fails, your dishwasher cannot properly regulate heating during wash cycles.

Q: Can I run my KitchenAid dishwasher with error code 3-2?

No, you should not run your dishwasher with this error code. The faulty thermistor prevents proper temperature control, which can result in poor cleaning performance, potential damage to dishes, or safety issues with water temperature.

Q: How much does it cost to fix KitchenAid dishwasher error 3-2?

A replacement thermistor typically costs $15-40. Professional repair service usually ranges from $150-250 including parts and labor. DIY repair can save $100-200 in labor costs.

Q: Why does my KitchenAid dishwasher thermistor keep failing?

Frequent thermistor failures can be caused by hard water mineral buildup, power surges, overheating due to blocked vents, or an aging control board sending incorrect signals. Address underlying issues to prevent repeat failures.

Q: How do I test a dishwasher thermistor with a multimeter?

Disconnect the thermistor wires and set your multimeter to resistance (ohms). Test across the two terminals - you should see around 16,000-17,000 ohms at room temperature. No reading (infinite resistance) or very low resistance indicates a faulty thermistor.

Abstract

KitchenAid dishwasher error code 3-2 (also displayed as F3 E2) indicates the thermistor temperature sensor is shorted or malfunctioning. This sensor monitors water temperature during wash cycles, and when it fails, your dishwasher cannot properly regulate heating. The error typically requires replacing the thermistor assembly to restore normal operation.