F18
Miele
NTC Sensor Calibration / Range Fault
Oven interior temperature reading is clearly incorrect (e.g., shows very high or low values) and error is displayed.
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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
Sensor drift due to age, Wrong type of sensor fitted, Poor sensor contact with cavity, Control board calibration error
How to Fix / Troubleshooting
Safety first: Disconnect power before removing the sensor.
- Compare with external thermometer: Heat the oven to a known temperature (e.g., 180°C) and compare with a reliable oven thermometer. Large discrepancies indicate sensor or control issues.
- Replace sensor: If the sensor is original and old, replacing it with a genuine Miele NTC sensor is often the simplest fix. Ensure the new sensor is correctly seated and secured.
- Check wiring resistance: Measure resistance at the control board end to ensure the harness does not add significant resistance or intermittent connections.
If a new sensor does not correct the reading, the control board may require replacement or recalibration by Miele service.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor (NTC)
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