E01
Lavazza NTC Sensor Short Circuit

Machine shows E01 and does not start; may occur immediately after power-on.

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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

Shorted brew temperature sensor, Damaged sensor wiring harness, Moisture on sensor connector, Control board input fault

How to Fix / Troubleshooting

Safety first: Unplug the machine and allow it to cool before accessing internal components.

Step 1 – Dry and reset

  • If the machine was recently descaled or exposed to heavy steam, allow it to dry for several hours.
  • Unplug for 10 minutes, then retry.

Step 2 – Inspect sensor wiring (advanced)

  • Remove the cover and locate the brew thermoblock and its NTC sensor.
  • Check the sensor cable for cuts, pinches, or melted insulation.
  • Ensure the connector is clean and fully seated on the control board.

Step 3 – Replace sensor (for technicians)

  • If the sensor measures near 0 Ω (short) at room temperature, replace it with the correct Lavazza NTC sensor.
  • If wiring and sensor are good, the control board may have a defective input circuit.

When to seek service

  • E01 usually requires professional diagnosis if basic drying and connector checks do not resolve it.
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Repair Difficulty

Professional Required 5/5

Required Part

Brew Temperature Sensor (NTC)
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