E17 error, freezer may show very high or very low temperature readings that do not match actual conditions.

Safety: Disconnect power before testing sensors.

Steps:

• 1. Identify which sensor: Consult the user or service manual if available; E17 often refers to a shorted main freezer sensor.
• 2. Inspect sensor cable: Follow the sensor wiring from the compartment to the cabinet pass-through. Look for crushed or cut insulation.
• 3. Disconnect and test: Unplug the sensor from the harness and measure resistance. A reading near 0 Ω indicates a shorted sensor.
• 4. Check for moisture: If the connector area is wet, dry thoroughly and apply dielectric grease if recommended.
• 5. Replace sensor: Install a new "Amica Freezer NTC Temperature Sensor" and route the cable to avoid pinch points.

Note: If the sensor tests fine but the board still reads a short, the fault may be on the main PCB.