⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: Dishwasher Difficulty: Moderate
Problem: Temperature sensor fault; thermistor open/shorted or out of operational range
How to Fix Dishwasher Error
- Unplug dishwasher and allow components to reach room temperature.
- Remove lower access panel to access temperature sensor locations.
- Locate thermistor mounted on heater housing or tub wall. Disconnect wiring harness.
- Measure resistance across sensor terminals with multimeter at current ambient temperature.
- Compare reading to service manual chart (e.g., 77°F = ~10kΩ). Infinite = open; zero = shorted.
- Remove mounting screw securing sensor. Gently extract thermistor from well.
- Clean mounting well thoroughly with isopropyl alcohol and lint-free cloth.
- Apply thermal conductive paste to sensing tip of new sensor.
- Install replacement thermistor using OEM part DD31-00003A. Secure mounting screw to 4 in-lbs torque.
- Reconnect harness. Reinstall panel. Restore power. Run cycle to verify temperature display updates accurately.
Recommended Replacement Part
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
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