Why Is My LG Refrigerator Freezing My Food?

There is nothing more frustrating than waking up to make breakfast, only to find your carton of milk is a slushy and your fresh salad greens are frozen solid. Groceries aren’t cheap, and your refrigerator is supposed to keep them fresh, not ruin them.

At A-to-Z Appliance Repair, we service hundreds of refrigerators across Cincinnati, Dayton, and Northern Kentucky every year. One of the most common calls we get regarding LG models isn’t that they aren’t cooling—it’s that they are cooling too much.

If your LG French Door or Side-by-Side is acting more like a deep freezer, don’t panic. While some causes require a repair part, others are simple airflow issues you can fix yourself in a few minutes. Here is the checklist our technicians use to diagnose the problem.

1. The Blocked Vent Issue (Check Your Loading Style)

This is the #1 cause of frozen food we see in busy family kitchens. LG refrigerators use a Multi-Air Flow system. If you look at the back wall of your fridge, you will see several vents. These vents blow sub-zero air from the freezer into the fridge compartment.

• The Problem: If you push a large pizza box, a bag of bagels, or a pitcher directly against these back vents, two things happen:
  1. The cold air hits that item instantly, freezing it.
  2. The air cannot circulate to the rest of the fridge, confusing the thermostat.
• The Fix: Pull all food at least two inches away from the back wall and the side vents. Good airflow ensures even temperatures.

2. The Thermostat Setting

It is a common misconception that turning the temperature down will make your fridge cool faster. In reality, it just lowers the target temperature.

• The Ideal Setting: For most LG units, the factory-recommended setting is 37°F.
• The Danger Zone: If you have yours set to 33°F or 34°F, items with high water content (like lettuce, cucumbers, and fruit) will likely freeze, especially if they are near the back of the shelf.

3. The Damper Control Assembly (Mechanical Failure)

If your shelves are organized and your temperature is set to 37°F, but your orange juice is still frozen, you likely have a mechanical part failure.

• What is it? The damper is a small motorized door that connects the freezer to the fridge. It opens to let cold air in and closes when the fridge is cold enough.
• The Failure: Sometimes, the motor fails, or the door physically gets stuck in the OPEN position. This allows freezing air to pour into the fridge section non-stop, regardless of the thermostat setting.
• The Solution: This requires a professional repair. An A-to-Z technician can test the damper motor and replace the assembly to restore proper temperature control.

4. The Temperature Sensor (Thermistor)

Your refrigerator uses a small sensor (called a thermistor) to “feel” the air temperature and tell the compressor when to turn on and off.

• The Issue: If this sensor is faulty, it might tell the computer that the fridge is warm (e.g., 45°F) when it is actually freezing (30°F). The computer responds by running the compressor continuously, freezing everything inside.
• The Check: This is a difficult part to test without a multimeter and the specific resistance values for your model. It is best left to a professional diagnosis.

5. The Pantry Drawer Settings

Many LG models feature a wide “Glide N’ Serve” drawer at the bottom of the fridge section. This drawer often has its own temperature control.

• Check This: If the selector on this drawer is set to Meat/Fish or Chill, it is designed to keep that specific drawer slightly below freezing to preserve meat. If you store vegetables there, they will freeze. Move the slider to “Produce” or “Deli” for standard temperatures.

Still Frozen? Let A-to-Z Take a Look.

If you’ve rearranged your shelves and checked your settings but the problem persists, it’s time to call in the experts. You don’t want to risk burning out your compressor by letting it run constantly to freeze your food.

Whether you are in Mason, Centerville, Beavercreek, or right downtown, A-to-Z Appliance Repair is your local expert for LG appliances. We can accurately diagnose the issue—whether it’s a stuck damper, a bad board, or a faulty sensor—and get your kitchen back to normal.

Serving Cincinnati, Dayton, and Northern Kentucky.