E02
Lavazza
NTC Sensor Open Circuit
Machine shows E02 and will not heat; water may flow but remains cold.
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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
Disconnected or broken brew temperature sensor, Corroded sensor connector, Broken track on control board sensor input
How to Fix / Troubleshooting
Safety first: Unplug the machine and let it cool before opening.
Step 1 – Check connectors
- Remove the cover and locate the NTC sensor on the thermoblock.
- Ensure the sensor plug is firmly connected to the wiring harness and control board.
- Clean any corrosion with contact cleaner and re-seat the connector.
Step 2 – Inspect sensor cable
- Follow the cable from the sensor to the board, looking for breaks or pinch points.
- Repair or replace damaged wiring.
Step 3 – Replace sensor (for technicians)
- If the sensor reads infinite resistance (open circuit), replace it.
When to seek service
- If E02 persists after sensor replacement, the control board may be faulty and should be serviced professionally.
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Repair Difficulty
Professional Required
5/5
Required Part
Brew Temperature Sensor (NTC)
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