Freezer compartment not reaching set temperature; display shows E2

Safety warning: Always unplug the refrigerator before removing panels or touching wiring. Avoid damaging the foam insulation when accessing sensors.

Diagnostic steps:

• 1. Confirm the error: Power-cycle the appliance (unplug 5–10 minutes, then reconnect). If E2 reappears, proceed.
• 2. Locate the freezer sensor: Typically mounted on the rear or side wall of the freezer, sometimes clipped to the evaporator cover or inside an air duct. Remove drawers and the inner back panel if necessary.
• 3. Visual inspection: Check for ice buildup around the sensor, broken clips, or damaged wiring. Carefully defrost any heavy ice with a hair dryer on low, keeping it away from plastic and wiring.
• 4. Electrical test: With the unit unplugged, disconnect the sensor and measure resistance with a multimeter. Compare to expected NTC values (commonly 5–15 kΩ at room temperature; resistance will be higher when cold). Infinite or near-zero resistance indicates a faulty sensor.
• 5. Harness check: If the sensor tests OK, inspect and test the wiring from the sensor to the control board for continuity and signs of pinching or rodent damage.
• 6. Replace components: Install a new freezer NTC sensor if defective. If wiring is damaged, repair or replace the harness. Persistent E2 with good sensor and wiring suggests a defective main control board, which should be replaced by a professional.

Note: After replacement, clear the error by unplugging for several minutes. Monitor freezer temperature over 24 hours.