Freezer runs constantly and rarely shuts off, even when interior seems cold.

Safety note: Unplug the freezer before cleaning coils or removing panels.

Steps to reduce excessive run time:

• Check door seal: Inspect the gasket for gaps, tears, or hardened sections. Replace if it does not seal all around. Adjust door hinges if the door is sagging.
• Eliminate obstructions: Ensure nothing is preventing the door from closing fully, such as overpacked shelves or protruding items.
• Clean condenser and improve airflow: Vacuum dust from condenser coils and ensure adequate clearance around the unit.
• Defrost interior: If heavy frost is present on walls or the evaporator cover, perform a full manual defrost by unplugging the unit, leaving the door open, and placing towels to catch water. Restart after all ice is gone.
• Verify temperature sensor/thermostat: If the freezer is much colder than the setpoint yet still runs, test and replace the thermostat or thermistor as needed.