LG freezer is not freezing – Easy DIY Guide In Austin

If not, turn off the fridge circuit breaker. Verify power is off by opening the door and checking that the interior lights are off.

Check Loading and Blocked Vents

The evaporator fan circulates cold air through the freezer and refrigerator. Too much food or items placed against vents will block airflow and prevent the LG freezer from freezing. Move frozen items away from vents. Keep about 1 inch of space between food and the walls.

Verify Thermostat and Temperature Settings

Check the temperature control or dial to confirm it is set to cold. The freezer should be near 0°F. If the freezer is not freezing, set the fridge to 37°F for the fresh food side and wait 24 hours to see if temperatures stabilize. Use a thermometer if your unit has no digital display.

Reset Power to Clear Errors

A power reset can clear some errors. Unplug the refrigerator or switch off the circuit breaker for 5 minutes, then restore power. Monitor temperatures for 24 hours. This can fix issues caused by power surges or control glitches.

Cancel Demo Mode if Engaged

Some LG units have Demo Mode, which prevents normal cooling. To cancel it, open the right door and press and hold the Refrigerator and Ice Plus buttons for 5 seconds. If your serial number begins with numbers above 901, press Ice Plus three times while holding the Refrigerator. The panel will chime and show temperatures when Demo Mode is cancelled.

Inspect Door Gaskets and Seals

Clean Condenser Coils and Fan

Defrost the Freezer if Ice Has Built Up

Excess frost on the evaporator coil blocks airflow and reduces cooling. Unplug the unit, remove food, and let the ice melt. Place towels under the unit and use bowls of hot water or a hair dryer on low to speed melting. Dry the interior completely before powering back on. If thick ice returns quickly, the defrost system may be faulty.

Check Condenser and Evaporator Fans

The condenser fan draws air over the coils; the evaporator fan moves cold air inside the compartments. If a fan blade is blocked or the motor fails, the LG freezer is not freezing properly. Inspect blades for debris, turn the fan by hand, and test motor windings for continuity. Replace any motor that does not spin freely or fails the continuity test. Note: a fan may be iced over—defrost first and test again.

Test the Thermistor and Temperature Sensors

A bad thermistor can stop proper temperature control. Use a multimeter to test the thermistor at room temperature and in ice water. If readings do not match LG specs (freezer thermistor ~3kΩ at 70°F and ~8kΩ in ice water with salt), replace the thermistor. Faulty sensors can cause the freezer not to reach the target temperature.

Check Thermostat, Start Relay, and Capacitor

If your model uses a mechanical thermostat, turn it from low to high and listen for a click. If no click, replace the thermostat. Test the compressor start relay for continuity; a bad relay can prevent the compressor from starting. Test the run or start capacitor with a capacitance meter and replace it if the measured value is outside the tolerance printed on the capacitor.

Inspect the Main Control Board

If the defrost system, fans, sensors, and basic controls check out but the LG freezer is not freezing, the main control board may be faulty. Replace the control board only after confirming that other systems work correctly.

Test the Compressor and Check for Refrigerant Issues

Signs of refrigerant leak include uneven frost on the evaporator and oily residue on the lines or the compressor. Refrigerant diagnostics and service require a certified technician.

Inspect for Refrigerant Leaks or Blockages

A leak or blockage in the sealed refrigerant loop can cause the LG freezer is not freezing. Look for oily spots on coils or the compressor. If the compressor runs continuously and cooling is poor, call an appliance technician to measure system pressures. Compressor or sealed system replacement is costly and not a DIY repair.

Final Checks and Routine Maintenance

After repairs or cleaning, restore power and set temperatures to recommended levels. Allow 24 hours for the unit to stabilize. Regular maintenance—cleaning coils, checking gaskets, and avoiding overloading—helps prevent the LG freezer is not freezing.

Quick Troubleshooting Checklist

• Confirm outlet power and reset the circuit breaker.
• Verify temperature settings and perform a power reset.
• Inspect and clean door seals.
• Clean condenser coils and fans.
• Defrost if heavy ice is present.
• Test the thermistor, fans, start relay, and capacitor.
• Call a certified technician for compressor or refrigerant issues.

This technical guide covers the main checks to perform when an LG freezer is not freezing. Follow safe testing steps and use a multimeter for electrical checks. If you need help, contact a qualified appliance repair technician.

The LG freezer is not freezing – Expert repairs by All Austin Repairs

If your LG freezer is not freezing, All Austin Repairs can help. Our Austin team checks seals, fans, heaters, and controls to find the fault. We clean coils, test thermistors, and fix defrost parts or replace valves on site. Call All Austin Repairs in Austin to schedule a fast, local repair and get your freezer cold again.

You can also count on our neighborhood partners — Hill Country Repairs and AC Repair Center — for trusted appliance and cooling repair services nearby.

LG Freezer Is Not Freezing – FAQ