E11
SMEG
NTC Temperature Sensor Fault
Dishwasher displays E11 and may not detect water temperature correctly; cycles may end prematurely or run indefinitely.
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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 or shorted NTC sensor, Loose NTC connector, Damaged wiring harness, Control board input fault
How to Fix / Troubleshooting
Safety first: Unplug the dishwasher before testing sensors.
- Locate NTC sensor: On SMEG dishwashers, the NTC is usually mounted in the sump or heater housing.
- Inspect connection: Check that the NTC plug is firmly seated and free of corrosion or moisture.
- Measure resistance: With a multimeter, measure the NTC resistance at room temperature. Compare with SMEG specifications (commonly around 50 kΩ at 25°C, but verify for your model). A reading of 0 Ω or infinite resistance indicates a faulty sensor.
- Check harness: Trace the wiring from the NTC to the control board for cuts, pinches, or burn marks.
- Replace NTC if defective: Swap the sensor for a new OEM part, ensuring the seal is correctly seated to prevent leaks.
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Repair Difficulty
Medium
3/5
Required Part
NTC Temperature Sensor
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