E9
Winterhalter
Temperature Sensor (NTC) Fault
E9 error; machine may stop and indicate a sensor or probe fault, often related to temperature.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open-circuit or shorted NTC sensor in tank, Damaged wiring harness to sensor, Corroded sensor connector, Incorrect sensor type fitted
How to Fix / Troubleshooting
Safety first: Disconnect power and allow the machine to cool before accessing sensors.
- Visual inspection: Locate the tank temperature sensor (NTC) and check for loose or corroded connectors. Clean and reseat the plug.
- Check cable routing: Ensure the sensor cable is not pinched or damaged by panels or baskets.
- Reset and test: Restore power and clear the error if possible. Run a short cycle and monitor if E9 returns.
- Sensor replacement: If the error persists, the NTC is likely defective. Replace it with the correct Winterhalter sensor specified for the model.
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Repair Difficulty
Medium
3/5
Required Part
Tank NTC Temperature Sensor
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