KitchenAid Dishwasher HE Error Code - Heating Element Fault

What Caused This Error?

The control system reports HE when the monitored condition described by the error code is outside the expected operating range. In this case, the most likely trigger is blown heating element. Other common contributors include tripped high-limit thermostat switch and defective control board relay.

Step-by-Step Diagnostic Check

1. Unplug unit and check heating element element for cracks or corrosion.
2. Disconnect electrical power before opening panels. Test heating element continuity with multimeter (approx 10-30 ohms).
3. Disconnect electrical power before opening panels. Check high-limit thermostat switch for continuity.
4. Replace heating element if open circuit.