Dishwasher shows E9 and may stop; temperature readings appear incorrect, or unit may overheat or underheat.

Safety first: Turn off power and allow the dishwasher to cool completely before accessing the sump or heater area.

• Locate the NTC sensor: On many Dacor dishwashers, the NTC is mounted in the sump or on the side of the tub near the heater. Refer to your model's layout if needed.
• Inspect the sensor and wiring: Check for cracks in the sensor body, signs of water intrusion, or corrosion at the connector. Ensure the harness is not pinched or damaged.
• Test sensor resistance: Disconnect the sensor and measure resistance at room temperature. Compare to Dacor specifications. A reading far out of range or infinite indicates a bad sensor.
• Replace the NTC if faulty: Remove the retaining clip or screw, pull out the sensor, and install the new Dacor temperature sensor with the proper seal to prevent leaks.
• Check control board if sensor is good: If the sensor tests correctly but E9 persists, the main control board may be misinterpreting the signal and should be evaluated or replaced by a professional.