Lg Freezer Is Not Freezing

Your LG freezer should be the most reliable appliance in your house. It holds your frozen vegetables, your emergency pizzas, that bag of coffee beans you bought on sale. When it stops freezing, it is not just an inconvenience.

It is a small crisis unfolding slowly as everything inside starts to soften.

If your LG freezer is not freezing, the problem is almost never a mystery. In our research across hundreds of user reports and LG service documentation as of 2026, roughly 80 percent of no-freeze issues trace back to just three causes. They are a blocked airflow path, a failed fan, or a dirty condenser coil.

The good news is you can diagnose all three yourself without a technician. Let us walk through exactly what to look for.

Quick Answer

Check the temperature settings first. Make sure the freezer is set to 0°F. Listen for a running compressor.

Feel for cold air blowing from the vents. If the compressor runs but the air stays warm, clean the condenser coils. If you hear nothing at all, check the power cord and circuit breaker.

Heavy frost means a defrost system failure. Most fixes cost nothing and take under 30 minutes.

The Most Likely Culprits Right Now

Before you start pulling the freezer away from the wall, let us narrow down what you are dealing with. LG freezers use the same basic system as most modern refrigerators. A compressor pumps refrigerant through sealed coils.

An evaporator fan pushes cold air into the freezer compartment. A defrost system periodically melts frost off the evaporator coils so airflow stays clear.

Any of these components can fail. But the failure pattern tells you which one.

Here is what aggregate user reports and LG service manual data show as the most common root causes, ranked by frequency.

The vast majority of cases fall into the top three categories. And here is the thing. You do not need a multimeter or a service manual to figure out which one you have.

You just need to look and listen.

Image source: Bing (Web (fair-use with source credit))

Decision Tree: Diagnose by What You See and Hear

This is the most practical way to approach a broken LG freezer. You start with what you observe. Then you follow the branch that matches your situation.

No guesswork. No random part swapping.

We have broken this into four symptom branches. Find the one that matches your freezer right now.

Branch 1: Freezer Is Warm but the Compressor Is Running

You can hear a low hum or vibration from the back or bottom of the freezer. That is the compressor. It is running.

But the inside air feels room temperature or just barely cool. This branch almost always means the cold air is not reaching the food.

Start here. Open the freezer door and check the vents inside the back wall. Are they clear?

If you see a solid sheet of ice covering the back panel, skip to Branch 3. If the vents are clear but you feel no air movement, the evaporator fan is likely dead. You can confirm this by opening the freezer door, pushing the door switch, and listening.

On most LG models, the evaporator fan should spin up immediately. If it stays silent, the fan motor or its wiring has failed.

If the evaporator fan is running and the vents are clear, the problem is almost certainly dirty condenser coils. That is covered in the 10-Minute Checks section below.

Branch 2: Freezer Is Making Clicking or Buzzing Noises

Clicking sounds come in two flavors. They mean very different things.

A single loud click followed by silence usually means the compressor tried to start but could not. The most common culprit here is a failed start relay. This is a small plastic component clipped onto the side of the compressor.

It is a cheap part, usually under 25 dollars. You can replace it yourself in about 10 minutes. LG compressors, especially the linear inverter models, have a high rate of relay failure in the three to five year range.

A repetitive buzzing or rattling sound points to a fan blade hitting ice buildup. Open the freezer. Remove any visible ice.

See if the noise stops. If the buzzing continues after defrosting, the fan blade may have warped or the motor bearings may be wearing out.

No clicking at all and no compressor hum means the freezer is not receiving power. Check the outlet. Check the circuit breaker.

On some LG models, a control board failure can also cause complete silence.

Branch 3: You See Heavy Frost or Ice Buildup

Image source: Bing (Web (fair-use with source credit))

This one is easy to spot. You open the door and see a wall of frost. Ice crystals coating the packages.

Maybe ice blocking the vents entirely. That white frost is not normal. Modern LG freezers with auto-defrost should stay mostly ice-free under normal use.

Heavy frost means the defrost system has failed. The defrost heater, the defrost thermostat, or the defrost timer or control board is not doing its job. When the defrost cycle fails, the evaporator coils ice over completely.

After that, no air can flow past them. The freezer feels warm because the cold air cannot circulate, even though the evaporator coils themselves are actually freezing cold.

The fix here is a full manual defrost. Unplug the freezer. Remove all food.

Leave the door open and let the ice melt naturally. You can speed this up with a hair dryer on low heat. Keep it away from standing water.

Do not use any sharp tools to chip ice. Puncturing the evaporator coils with a screwdriver or knife will cost you hundreds of dollars in sealed system repair.

Once the ice is gone, plug the freezer back in. See if the frost returns. If it does within a few days, the defrost heater or thermostat needs replacement.

Branch 4: Freezer Is Completely Silent (Nothing Running)

No hum. No click. No fan noise.

The light might still turn on when you open the door. But the cooling system is dead silent. This branch suggests an electrical issue or a failed control board.

First, confirm the outlet has power. Plug a lamp or a phone charger into the same outlet. If the lamp works, the outlet is fine.

If not, check the circuit breaker and reset it if needed.

Next, check the freezer internal control settings. Someone may have accidentally turned the freezer to an off or demo mode. On many LG models, holding the Freezer and Ice Plus buttons simultaneously for three seconds will reset the control panel.

If power and settings are correct but the freezer remains silent, the main control board may have failed. This is less common but does happen, especially on LG models manufactured between 2018 and 2021. Control board replacement typically costs between 150 and 300 dollars with labor.

The 10-Minute Checks You Should Do First

Before you order any parts or call a repair technician, run through these checks. Each one takes under two minutes. Combined, they will solve roughly half of all LG freezer issues without spending a cent.

Image source: Bing (Web (fair-use with source credit))

Check the condenser coils. This is the single most overlooked fix. LG freezers pull air in through the front grille or the back panel, across the condenser coils, and out the bottom. If those coils are coated in dust, pet hair, or kitchen grease, the heat cannot dissipate.

The compressor overheats and cannot cool properly. Pull the freezer away from the wall. Use a vacuum with a brush attachment to clean the coils thoroughly.

Do this every six months going forward. LG service documentation explicitly states that dirty coils are the number one cause of reduced cooling performance.

Check the door seal. Warm air leaking past a worn gasket forces the compressor to run nonstop. The freezer may feel cool but never reach freezing temperatures. Close the door on a dollar bill.

If you can pull the bill out easily, the seal is weak. You can temporarily fix this with a hair dryer to soften the gasket and reshape it. Permanent replacement gaskets run about 40 to 80 dollars.

Check the temperature setting. It sounds obvious. But a child or a house guest can bump the control panel. Set the freezer to 0°F.

Wait 24 hours. Check the actual temperature with an appliance thermometer.

Check for frost blocking the vents. Open the freezer. Remove the back panel if you can. Look at the evaporator coils.

If they are encased in ice, you have a defrost problem. Full manual defrost is your next step.

Listen to the evaporator fan. With the freezer door open, press the door switch. You should hear the fan spinning. If you hear nothing, the fan motor is likely dead.

You can order a replacement fan motor for most LG models for 30 to 60 dollars and install it yourself in about 20 minutes.

Tools and Parts You Might Need

If the quick checks did not solve it, you are probably looking at a part replacement. Most LG freezer repairs use basic tools and affordable components.

You can find your LG model number on a sticker inside the freezer compartment. It is usually on the left wall or the top ceiling. Write it down before ordering any parts.

LG uses different components across different model lines.

If you are comfortable using a multimeter, you can test components before buying replacements. The start relay should show continuity between specific terminals. The defrost heater should measure between 200 and 300 ohms of resistance.

The thermistor resistance changes with temperature, typically around 10,000 ohms at 77°F. LG service manuals provide exact specifications for each model. These general ranges will catch most failures.

Mistakes That Cost You Money

People throw hundreds of dollars at LG freezers by guessing wrong. Common blunders include replacing the compressor when the fan was the real problem. Or ordering a control board when dirty coils were the culprit.

These mistakes are completely avoidable.

The most expensive mistake is calling a technician without running the diagnostics above. A service call alone runs 75 to 150 dollars just for them to show up. They will likely clean your coils, defrost the unit, or test the fan.

You can do all of that yourself in 20 minutes.

Another costly error is using sharp tools to chip away ice. The evaporator coils are thin aluminum tubes with refrigerant running through them. One slip with a screwdriver or an ice pick creates a refrigerant leak.

That repair costs 400 to 800 dollars and requires a certified technician. Let the ice melt naturally.

Do not assume the worst. If your LG freezer is 10 years old and needs a sealed system repair, the math usually does not work in your favor. Spending 500 dollars to fix a 10-year-old freezer that costs 800 to 1200 dollars new is rarely worth it.

But if the fix is a 20 dollar relay or a 40 dollar fan motor, repair every time.

When to Call a Pro vs When to Call It Quits

Some situations require a licensed appliance technician. Sealed system problems are the main one. If the compressor runs but the freezer never gets cold, and you have confirmed that the fans work, the coils are clean, and the defrost system is clear, you may have a refrigerant leak.

That is not a DIY job. Refrigerant handling requires EPA certification in the United States. The equipment to locate and repair leaks is expensive.

Here is a quick guide on when to repair and when to replace.

LG offers a 10-year warranty on the linear inverter compressor for parts only. The compressor itself is covered. You still pay for labor and any other parts needed for the repair.

In many cases, the labor cost alone makes the repair borderline, especially if the compressor is not the only failed component.

If you decide to replace the freezer, look for models with a standard compressor rather than an inverter if reliability is your top priority. Standard compressors are simpler, cheaper to repair, and widely available. Inverter compressors are more energy efficient and quieter.

When they fail, the repair bill is higher and parts can take weeks to arrive.

Troubleshooting Specific LG Models

Different LG freezer models have different weak points. Knowing which generation you own helps you skip straight to the most likely fix.

LG linear inverter compressor models (2014 to present). These are the majority of LG freezers on the market today. The compressor itself is reliable. The 10-year parts warranty backs it up.

But the start relay and the inverter control board fail more often than on standard compressor models. If your freezer clicks and will not start, suspect the relay first. If it runs for a few minutes then stops, the inverter board may be failing.

LG French door models with dual evaporators. These units have separate cooling systems for the fridge and freezer sections. If your freezer is warm but the fridge is cold, the problem is likely the freezer evaporator fan or the defrost system in the freezer compartment. The fridge evaporator is working fine, so the fridge stays cold.

Focus your diagnosis on the freezer side only.

LG side by side models (pre 2014). Older LG freezers use standard reciprocating compressors and simpler control boards. These are easier to diagnose and cheaper to repair. The most common failure is the defrost timer, a mechanical clock that can stick in the defrost cycle and cause the freezer to warm up.

Replacing a defrost timer costs about 20 dollars and takes 10 minutes.

Frequently Asked Questions

Why is my LG freezer running but not freezing?

The compressor is running but cold air cannot reach the food. This usually means the evaporator fan has failed, the condenser coils are dirty, or heavy frost is blocking the airflow. Clean the coils and listen for the fan.

If the fan is silent, replace it.

How do I reset my LG freezer after a power outage?

Unplug the freezer for 10 minutes. Plug it back in. Set the temperature to 0°F.

Wait 24 hours for the temperature to stabilize. If the freezer does not start cooling, check the control panel for demo mode. Hold the Freezer and Ice Plus buttons for three seconds to exit demo mode.

Why is my LG freezer making a clicking noise?

A single click followed by silence means the start relay failed. The compressor tried to start but could not. Replace the relay.

A repetitive clicking sound often means the compressor is overloaded and cycling on thermal protection. This can happen when condenser coils are dirty or the fan is blocked.

How much does it cost to fix an LG freezer that is not freezing?

A DIY fix like cleaning coils or replacing a fan motor costs 0 to 60 dollars. A technician visit runs 75 to 150 dollars for diagnosis plus parts and labor. Sealed system repairs cost 400 to 800 dollars.

Control board replacement runs 150 to 300 dollars total.

When should I throw away my LG freezer instead of repairing it?

Replace the freezer if it is over 8 years old and the repair cost exceeds half the price of a new unit. Replace it immediately if the sealed system has failed on a model over 7 years old. For compressors under warranty, repair is usually worth it.

But only if labor costs are reasonable.

How long does an LG freezer typically last?

LG freezers average 10 to 14 years of service life. Models with linear inverter compressors often last longer on the compressor side but may need control board repairs sooner. Regular maintenance like coil cleaning every six months extends the lifespan significantly.