Freezer compartment not reaching set temperature; display shows E2 and may flash the freezer temperature.

Safety warning: Disconnect the refrigerator from power before removing panels or touching wiring. Avoid using sharp tools that can puncture the liner or sealed system.

Diagnostic steps:

• 1. Confirm ventilation: Ensure there is adequate space around the fridge and that the condenser at the back is not clogged with dust. Poor ventilation can cause high freezer temperature but will not usually trigger E2 alone.
• 2. Access the freezer sensor: On Hansa freezers, the NTC sensor is typically clipped to the evaporator or mounted behind the rear interior panel. Remove drawers and the rear panel (usually held by screws). Carefully pull the panel forward to expose the evaporator and sensor.
• 3. Visual inspection: Check the sensor body and wiring for ice damage, corrosion, or broken insulation. If the sensor is encased in heavy ice, defrost the unit fully (leave unplugged with doors open for 24 hours, protect the floor from water).
• 4. Electrical test: Disconnect the sensor and measure resistance at room temperature. Compare to expected NTC values (often 5–20 kΩ at 25°C). If reading is open or shorted, the sensor is faulty.
• 5. Harness and board check: If the sensor is within spec, check continuity of the harness from the sensor to the main control board. Repair any damaged wires or connectors. If wiring is good, suspect the main control board.
• 6. Replace components: Install a new freezer compartment NTC temperature sensor if defective. If the board is faulty, have a technician replace the main control board.

Note: After replacement, clear the error by unplugging for several minutes, then restore power and monitor temperatures for 24 hours.