Display shows Lo or a very low temperature reading; freezer may be over-freezing and running almost constantly.

Safety first: Unplug the freezer before accessing sensors or the thermostat.

• Verify actual temperature: Place an accurate thermometer inside the freezer. If the real temperature is normal (-18°C) but the display shows Lo, the sensor or control is misreading.
• Inspect and test cabinet sensor: Follow the steps under E1 to locate and test the cabinet NTC temperature sensor. Replace if resistance is out of specification.
• Check mechanical thermostat (if fitted): On some Logik chest freezers, a mechanical thermostat is used instead of an electronic sensor. If the compressor never cycles off, the thermostat may be stuck closed and should be replaced.
• Power reset: After any replacement, unplug for 5–10 minutes, reconnect, and monitor operation.

When to seek service: If the sensor and thermostat are good but Lo persists, the main control board may require replacement by a professional.