The refrigerator does not freeze: causes of failure and how to fix the problem

Have you opened the refrigerator, but the food in the freezer has melted, or worse, there is a puddle in the chamber, and the motor is running non-stop? These are classic signs that technology stopped freezing. The reasons can be either trivial (forgot to close the door) or serious (freon leakage or compressor failure). In this article, we will look at why the refrigerator does not cool, and give clear instructions on what to do in each case. all possible faultswhy the refrigerator is not cooling, and we will give clear instructions on what to do in each case.

Important: not all breakdowns require calling a technician. For example, clogging of the capillary tube or a malfunction of the thermostat can be eliminated yourself, saving on repairs. But if there is a refrigerant leak or a motor-compressor breakdown, you cannot do without professional equipment. We will describe in detail symptoms for which repairs absolutely cannot be postponed this will help to avoid the final failure of the equipment.

1. First signs: how to understand that the refrigerator is not freezing

Before disassembling the equipment, make sure that there really is a problem. Sometimes users confuse temporary glitches with serious problems. Pay attention to these signals:

• 🔴 The food in the freezer has defrosted, but the light inside is on - this is the first bell. Check to see if the lights in the house have been turned off.
• ❄️ There is no frost on the back wall of the refrigerator compartment (in models with a drip system), although it was there before.
• 🔊 The compressor works without interruptions or, conversely, it does not turn on in general.
• 💧 Puddles under the refrigerator -a sign that the ice is melting in the freezer or the condensation is not drained.

If at least one of these signs is present, proceed with diagnostics. But first, rule out the simplest reasons:

If everything is in order, but the refrigerator still does not freeze, proceed to troubleshooting.

2. TOP 5 reasons why the refrigerator does not freeze, but the light is on

When the light inside the refrigerator works but there is no cooling, the problem lies in one of the key components of the system. Let's look at the most common breakdowns and their symptoms.

If your refrigerator is a model with the system No Frost, additionally check the operation of the fan. In such units it is responsible for the circulation of cold air. If it breaks, the freezer may become covered with ice, and the refrigerator compartment may stop cooling.

3. Diagnostics of the thermostat: how to check and replace

The thermostat (or thermostat) is the “brain” of the refrigerator that controls the temperature. If it fails, the compressor either does not turn on or runs without stopping. You can check it yourself:

1. Unplug the refrigerator and remove all the food.
2. Remove the protective cover of the thermostat (usually it is located inside the refrigerator compartment, next to the light bulb).
3. Disconnect the wires from the thermostat (memorize or photograph them location!).
4. Take a tester (multimeter) and check the resistance between the terminals. At room temperature it should be 0 Ohm (closed).
5. Place the thermostat in a container of cold water with ice for 1-2 minutes, then measure the resistance again. If it has not changed, the part is faulty.

If the thermostat does not pass the test, it needs to be replaced. To do this:

6. Buy a similar model (the part number is usually indicated on the thermostat body).
7. Connect the wires to the new thermostat in the same order as they were connected to the old one.
8. Install the part in place and close the casing.

4. Freon leak: how to recognize and what to do

Freon is a refrigerant that circulates through the refrigerator system and provides cooling. If it leaks, the compressor begins to run idle, and the temperature in the chambers rises. Signs of a leak:

• 🔥 The compressor runs non-stop, but the refrigerator does not freeze.
• 🛢️ Oil stains are visible on the back wall or tubes (freon leaks out along with the oil).
• ❄️ The freezer is covered with ice, but the food do not freeze.
• 💨 A faint hissing sound may be heard at the leak site (in rare cases).

A freon leak is serious malfunctionwhich cannot be eliminated without special equipment. If you suspect this problem:

1. Disconnect the refrigerator from the network.
2. Do not try to solder the tubes yourself - this can lead to fire or poisoning by freon vapors.
3. Call a technician. He will find the leak, seal it and charge the system with new refrigerant.

How dangerous is freon?

Freon in modern refrigerators (for example, R134a or R600a) is non-toxic, but if leaked in large quantities it can cause suffocation in a closed room. In addition, it is highly flammable, so you should absolutely not try to seal tubes without experience.

⚠️ Attention! If the leak occurs in the freezer compartment (for example, due to corrosion of the tubes), defrost the refrigerator for 12-24 hours before repairing. This will help the technician more accurately determine the location of the damage.

5. Capillary tube clogged: how to clean the system

The capillary tube is a thin channel through which freon enters the evaporator. Over time, it can become clogged with particles of oil, moisture or dirt. Signs of a blockage:

• 🔥 The compressor gets very hot, but the refrigerator freezes slightly.
• ❄️ Ice forms on the back wall of the refrigerator compartment.
• 🕒 The compressor operating cycle becomes very long (can work for hours without shutdown).

You can clean the capillary tube at home, but you will need a special tool:

1. Turn off the refrigerator and defrost it.
2. Remove the back cover to gain access to the capillary tube (it goes from the compressor to evaporator).
3. Disconnect the tube from the filter-drier (it looks like a small cylinder).
4. Connect a nitrogen cylinder to the tube (can be rented at a service center) and blow out the system under pressure 10–15 atmospheres.
5. Install a new filter drier and charge the system with freon (this should be done by a technician).

If you do not have experience working with refrigeration equipment, it is better to entrust the cleaning to a professional. Improper purging can damage the tubes or lead to freon leakage.

6. Compressor failure: when replacement is necessary

The compressor is the “heart” of the refrigerator. If it breaks, the equipment stops freezing completely. Signs of malfunction:

• 🔌 The compressor does not turn on (no characteristic hum).
• 🔥 The motor turns on for a few seconds and immediately turns off (overheating protection is triggered).
• 💥 A burning smell is coming from the compressor or traces are visible reflow.
• 📉 The refrigerator does not freeze in any of the chambers, although there is light.

You can check the compressor with a multimeter:

1. Disconnect the refrigerator from the network.
2. Remove the protective casing from the compressor (it located at the back in the lower part).
3. Disconnect the wires from the compressor terminals.
4. Measure the resistance between the terminals:
   • Between C (common) and S (start winding) - it should be 20–40 Ohm.
   • Between C and R (working winding) — 10–20 Ohm.
   • Between S and R —the sum of the two previous values (30–60 Ohm).

If the resistance is equal to 0 (short circuit) or ∞ (break), the compressor is faulty.

Replacing a compressor at home is extremely difficult - you will need:

• Special equipment for refueling frequency fail due to overheating. If your equipment is in a hot room or close to a wall, the risk of breakdown increases by 2-3 times.
• Vacuum pump for pumping air out of the system.
• Precise soldering of tubes (if an error occurs, leakage may occur).

⚠️ Attention! In refrigerators Indesit, Atlant and some models Beko Compressors often fail due to overheating. If your equipment is in a hot room or close to a wall, the risk of breakdown increases by 2-3 times.

7. Problems with the electronic control unit

In modern refrigerators (for example, Samsung RB37, LG GA-B489) the electronic module is responsible for cooling. If it fails, the equipment can:

• 📛 Show errors on the display (E1, F2, H1 - depending on the model).
• 🔄 Turn off the compressor independently after 5-10 minutes of operation.
• 🌡️ Do not respond to temperature changes from the control panel.

What you can do yourself:

1. Unplug the refrigerator for 10-15 minutes, then turn it on again. Sometimes this helps clear the error.
2. Check whether the contacts on the board are oxidized. If there is corrosion, carefully clean them with an eraser or alcohol.
3. If an error is displayed on the display, find its explanation in the instructions. For example, E1 v Samsung often means a problem with the temperature sensor.

If a reset does not help, you will most likely need to flashing or replacing the board. In most cases, this is done only in a service center.

Is it possible to repair the board yourself?

Theoretically, yes, if you have a soldering iron and experience working with electronics. But in 80% of cases, after a makeshift repair, the board fails completely.

8. When to call a repairman: critical breakdown or minor problem?

Not all faults require professional intervention. Here are cases when you can do without a technician:

• ✅ Replacing the thermostat (if you are confident in your abilities).
• ✅ Cleaning the drainage hole (if water accumulates at the bottom of the refrigerator compartment).
• ✅ Replacing the rubber seal on the door.
• ✅ Resetting electronic unit errors (if this is not a hardware failure).

But in these situations call a specialist required:

• ❌ Freon leakage (charging and soldering required).
• ❌ Compressor breakdown (special equipment required).
• ❌ Replacement of the electronic unit (risk of damaging the board if installed incorrectly).
• ❌ System repair No Frost (if the fan or defrost heating element does not work).

Average cost of refrigerator repair in 2026:

⚠️ Attention! Prices may vary depending on the region, refrigerator model and complexity of work. In some services, diagnostics are paid separately (from 500 to 1,500 ₽).

FAQ: Frequently asked questions about refrigerators that do not freeze

🔍 Why does the refrigerator not freeze, but the freezer works?

This is a typical problem for two-chamber refrigerators with one compressorCauses:

• Clogged capillary tube in the area leading to the fridge compartment.
• Malfunction magnetic valve (in models with a magnetic valve system Frost Free).
• Freon leak in the refrigeration chamber circuit.

B first of all, check whether the drainage hole in the refrigerator compartment is clogged - this can lead to icing of the evaporator and deterioration of cooling.

❄️ The refrigerator freezes, but does not turn off - what to do?

If the compressor works without stopping, the reasons may be as follows:

• Failed thermostat (does not give a shutdown command).
• Freon leak (the compressor tries to compensate for the lack of refrigerant).
• Contamination condenser (dust on the back grill impairs heat transfer).
• There are too many products loaded into the refrigerator, or the door does not close well.

First defrost the refrigerator for 12 hours, then turn it on again. If the problem persists, check. thermostat or call a technician.

💡 Is it possible to turn on the refrigerator if it does not freeze?

If the refrigerator is turns on but doesn't cool, it can be left to work for 1-2 hours under supervision. However:

• If the compressor is hot to the touch or it smells like burning - turn it off immediately!
• If the refrigerator clicks and turns off after a few seconds, this is a sign of a faulty compressor or start relay - further work may aggravate the breakdown.

In any case do not leave a faulty refrigerator unattended - this can lead to fire.

🔧 How much does it cost to refill freon in a refrigerator?

The cost depends on:

• Type of refrigerant (R134a cheaper, R600a more expensive).
• System volume (in large refrigerators you need more freon).
• Complexity of work (if soldering of tubes is required, the price will increase).

Average cost in Russia in 2026: 3 000 – 7 000 ₽ (including labor and material). Some services may charge an additional fee for diagnosing a leak (500–1 500 ₽).

🔌 The refrigerator does not freeze after the light is turned off - what to do?

If the light was turned off for a short time (up to 1 hour), the refrigerator should restore operation on its own. If this does not happen. happened:

1. Check whether the circuit breaker in the panel (maybe there was a power surge).
2. Unplug the refrigerator from the outlet for 5-10 minutes, then turn it on again.
3. If an error appears on the display, find its explanation in the instructions.

If after these steps the refrigerator does not work, it is likely that start relay or the electronic unit has burned out. In this case, you need a master.