Freezer runs but does not get cold enough; compressor and fans run continuously, temperature only slightly below room temperature.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Do not attempt to open the sealed refrigeration system yourself. Specialized tools and certification are required.
- Check temperature: Use a thermometer to confirm actual freezer temperature. If it never reaches below about -5°C (23°F) despite long run times, suspect a sealed system issue.
- Inspect frost pattern: Remove the rear interior panel and observe the evaporator after 15–20 minutes of run time. A healthy system shows even frost across most of the coil. Frost only on a small section near the inlet indicates low refrigerant or restriction.
- Verify condenser cleanliness: Clean the condenser coil and ensure the condenser fan is running; poor airflow can mimic low charge.
- Door seals: Confirm gaskets are sealing properly to avoid warm air infiltration.
If the evaporator frost pattern is poor and airflow is good, the problem is likely in the sealed system (leak, restriction, or weak compressor). Contact an LG-authorized refrigeration technician for leak detection and repair.