Freezer beeps and displays E1, temperature rises above set point and food begins to soften.

Safety first: Unplug the freezer from the mains before removing any panels. Do not work on live circuits.

Step-by-step checks:

• 1. Power reset: Disconnect power for 5–10 minutes, then reconnect. If E1 returns within a few minutes, continue with diagnosis.
• 2. Locate the freezer sensor: Inside Amica freezers the NTC sensor is usually clipped to the evaporator cover or mounted behind a small plastic cover on the rear wall of the freezer compartment. Remove the inner cover (usually held by a few screws or clips).
• 3. Inspect the sensor and wiring: Look for cracked insulation, corrosion on the connector, or a sensor probe encased in heavy ice. If iced over, fully defrost the freezer for at least 24 hours with the door open and towels at the base, then test again.
• 4. Electrical test (for experienced DIYers): With the unit unplugged, disconnect the sensor from the wiring harness. Measure resistance with a multimeter at room temperature (typically 5–20 kΩ depending on model; compare with service sheet if available). An open circuit (OL) or 0 Ω indicates a failed sensor.
• 5. Check harness to main PCB: Trace the sensor wires to the main control board (usually behind the rear lower panel or top control housing). Ensure the plug is fully seated and not burnt or loose.
• 6. Replace the sensor if faulty: Order an Amica-compatible "Freezer NTC Temperature Sensor" by model number. Clip the new sensor in the same position, route the cable along the original path, and reconnect to the harness. Reassemble covers, restore power, and monitor temperature and alarms.

When to call a technician: If the sensor tests good but E1 persists, the main control board may be misreading the sensor and should be checked or replaced by a professional.