E31
Amica NTC Sensor Range / Calibration Error

Washer displays E31 and may not heat or may stop mid-cycle on Amica washing machine.

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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

Incorrect NTC resistance, Wrong replacement sensor fitted, Poor NTC contact with heater housing, PCB calibration fault

How to Fix / Troubleshooting

Safety first: Disconnect power and allow the washer to cool.

  • 1. Confirm correct NTC part: If the sensor was recently replaced, verify that the installed NTC matches the original Amica part number and specification.
  • 2. Reseat NTC: Remove and refit the NTC sensor, ensuring it is fully inserted into the heater bracket and has good thermal contact.
  • 3. Measure resistance at different temperatures: Check NTC resistance at room temperature and after warming it slightly (e.g., in warm water, disconnected). The resistance should decrease smoothly as temperature rises. Replace if readings are erratic.
  • 4. Inspect wiring and PCB: Check the NTC harness and PCB connector. If all hardware is correct and E31 persists, the control board's temperature circuit may be faulty.
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Repair Difficulty

Hard 4/5

Required Part

NTC Temperature Sensor
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