Freezer shows E2 and may run continuously or not cool correctly; temperature display may flash.

Safety warning: Always unplug the freezer before removing covers or touching wiring.

Diagnostic steps:

• 1. Confirm the error: Power cycle the appliance. If E2 reappears after a short time, proceed.
• 2. Locate the ambient/cabinet sensor: On many Amica freezers this sensor is located behind the internal liner near the air return, or in the control housing at the top/front. Look for a small plastic cover or grille with two thin wires leading away.
• 3. Visual inspection: Check for broken wires, crushed insulation, or signs of moisture around the sensor. Dry any visible condensation.
• 4. Resistance test: Disconnect the sensor plug and measure resistance with a multimeter. Compare to expected NTC values (often 5–20 kΩ at room temperature). Infinite or near-zero resistance indicates a failed sensor.
• 5. Harness and board check: Follow the sensor wires to the main PCB. Ensure the connector is fully seated and not corroded. Gently reseat the plug.
• 6. Replace sensor if needed: Order an "Amica Ambient NTC Sensor" or "Cabinet Temperature Sensor" for your exact model. Swap the sensor, route the cable as originally installed, and reassemble.

Note: If the sensor and wiring test correctly but E2 persists, the main control board may be defective and should be evaluated by a qualified technician.