Freezer interior temperature fluctuates widely; some days food is very hard, other days slightly soft.

Safety first: Unplug the freezer before accessing sensors or control boards.

• Monitor with a thermometer: Place an accurate freezer thermometer inside and log readings over 24–48 hours to confirm fluctuations.
• Check loading and airflow: Avoid blocking air vents with packages. Do not overpack the freezer.
• Inspect sensor connections: Reseat the cabinet sensor connector at both the sensor and control board ends.
• Replace suspect sensor: If tapping or moving the sensor wiring causes temperature reading jumps, replace the sensor.

If fluctuations persist, the control board may have intermittent relay or logic faults requiring professional diagnosis.