i70
Zanussi
NTC Temperature Sensor Fault
Dishwasher displays i70 and may stop heating correctly.
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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 NTC sensor, Shorted NTC sensor, Loose or corroded NTC connector, Damaged wiring harness to NTC
How to Fix / Troubleshooting
Safety first: Isolate the dishwasher from the mains before removing panels or touching wiring.
- Locate NTC: On Zanussi dishwashers the NTC is usually mounted in the sump or integrated into the heater/circulation pump housing.
- Inspect connection: Check that the NTC plug is firmly connected and free from corrosion or moisture. Clean and reseat the connector.
- Measure resistance: Disconnect the NTC and measure its resistance at room temperature. Compare with Zanussi specifications (typically several kΩ). A reading of 0 Ω or infinite resistance indicates a faulty sensor.
- Replace NTC: If defective, replace the NTC sensor with a compatible Zanussi part. Ensure the sealing O‑ring is correctly seated to prevent leaks.
- If error persists: The control board input circuit may be faulty and should be checked by a professional.
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Repair Difficulty
Hard
4/5
Required Part
NTC Temperature Sensor
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