The refrigerator has stopped freezing - what to do? Reasons and methods of repair

Have you opened the refrigerator, and the food in the freezer has melted, although the light inside is on and the motor is humming? Or is there general silence - the unit has stopped working, but the indicators are on? This problem is familiar to many: according to statistics from service centers, 3 out of 10 requests it is associated with the fact that the refrigerator does not freeze well or does not cool at all. The reasons can be either simple (condenser clogged with dust) or serious (freon leak or compressor failure).

In this article we will analyze all possible reasonswhy the refrigerator stopped freezing - from trivial to critical. You will learn how to diagnose a breakdown yourself, when you can get by with cleaning or adjustment, and when it’s time to call a professional. We will also give step-by-step instructions for popular models Atlant, Indesit, Samsung and LG, where typical faults most often occur. If your refrigerator is still under warranty - do not disassemble it yourself: this will void the manufacturer's warranty.

First, let's answer the main question: is it worth panicking? If the refrigerator has stopped freezing, but there is light inside, this already narrows the range of possible problems. For example, malfunction of the thermostat or clogged capillary tube do not require expensive repairs, unlike a compressor breakdown. Next is a detailed analysis of each cause with symptoms and solutions.

1. Check the obvious: power supply, settings and external factors

Before disassembling the refrigerator or calling a technician, rule out simple causes that are not related to the breakdown:

• 🔌 Power. Make sure that the plug is tightly inserted into the socket and the socket itself is working (check with another device). Sometimes the contacts oxidize and the voltage drops - the refrigerator turns on, but does not freeze.
• ❄️ Defrosting mode. In models with No Frost automatic defrosting may work (the indicator lights up on the display Defrost). Wait 1-2 hours - if after this the freezer starts working, the problem is in the defrost sensor.
• ☀️ Room temperature. If the refrigerator is standing next to the radiator or in the sun, the compressor may turn off due to overheating. Normal operating temperature - +16…+32°C.
• 📏 Gap for ventilation. Between the wall and the back wall of the refrigerator there should be at least 5–10 cm. If it is not there, the motor overheats and turns off.

Also check whether the freezer is overloaded with food. If you put in too many warm foods, the compressor may not be able to cope with the load. In this case, it will help forced defrosting for 12-24 hours (turn off the refrigerator, take out all the food, leave the doors open).

⚠️ Attention: If the refrigerator does not turn on after defrosting, do not try to start it again within 10 minutes. The compressor needs time to cool down - otherwise it will work thermal protectionand the unit will be blocked.

2. Failure of the thermostat (thermostat) is the most common cause.

The thermostat (or thermostat) is the "brain" of the refrigeratorthat controls the temperature and turns the compressor on/off. If it breaks, the motor either works without stopping (and the refrigerator freezes) or does not turn on at all. Signs of a thermostat malfunction:

• 🔄 The compressor does not turn off, but the freezer does not cool.
• ❄️ It is too cold in the refrigerator compartment (food freezes), but it is warm in the freezer.
• 💡 The light inside is on, but the motor does not start.
• 📉 The temperature in the chambers does not correspond to the one set on the regulator.

How to check the thermostat yourself:

1. Disconnect the refrigerator from the power supply.
2. Remove the protective casing (usually it is attached with latches or screws).
3. Find the thermostat - it looks like a small box with a tube going to the evaporator.
4. Disconnect the terminals and check the resistance with a multimeter. At room temperature it should be 0 Ohm (closed), when cooling the tube (for example, with ice) - infinity (open).

If the thermostat does not respond to temperature, it needs to be replaced. For models Indesit and Ariston universal thermostats are suitable K59 or K50, for Atlant — TAM-133 or TAM-145. The cost of the part is from 500 to 2000 ₽, replacement will cost another 1500–3000 ₽ (depending on the model).

⚠️ Attention: In refrigerators with electronic control (for example, Samsung RL-60 or LG GA-B489) instead of mechanical thermostat is used temperature sensor. It is checked differently: the resistance is measured at different temperatures (the norm is 5–10 kOhm at +20°C).

3. Freon leakage: how to recognize and what to do

Freon is refrigerantthat circulates through the system and provides cooling. If it leaks (for example, due to corrosion of tubes or mechanical damage), the refrigerator stops freezing, but the light inside is on and the compressor runs without stopping (trying to compensate for the lack of refrigerant). data-i="132">refrigerant

• 🔊 The compressor hums constantly, but there is no cold.
• 🧊 The condenser (grid at the back) does not heat up.
• 💨 There is a smell from the refrigerator oil or chemicals (smell of freon).
• 🔍 Oil stains are visible on the tubes or in soldering areas.

Fix the leak yourself impossible —you need a special tool (vacuum pump, freon cylinder, soldering torch). Repair algorithm:

1. The technician finds the location of the leak (most often it is evaporator, condenser or places for soldering tubes).
2. Eliminates damage (solders or replaces a section of the tube).
3. Vacuums the system (removes moisture and air).
4. Recharges new freon (usually R-134a or R-600a, depending on the model).

Repair cost: from 3000 to 8000 ₽ (depending on the complexity and type of freon) can be used in old refrigerators (manufactured before 2010). data-i="154">, which is now prohibited - it is being replaced with R-12, which is now prohibited - it is being replaced by R-134a, but this requires flushing the system.

What is the danger of freon leakage?

Freon is non-toxic, but in large accumulations in a closed room it can cause suffocation (displaces oxygen). In addition, oil from the system gets onto the food, which makes it unsuitable for food.

4. Compressor malfunction: when replacement is necessary

A compressor is the “heart” of the refrigeratorthat pumps freon through the system. If it breaks, the refrigerator either does not turn on at all or works intermittently. Signs of a compressor breakdown:

• 🔇 The refrigerator does not hum (there is no sound of a running motor).
• 🔥 The compressor housing gets very hot (the norm is warm, but not hot).
• 💥 When turned on, clicks are heard, but the motor does not start (protection is triggered).
• 📉 There is voltage at the compressor terminals, but it does not work (checked with a multimeter).

The most common reasons for compressor failure:

• 🔌 Voltage surges. If the network often has >240 V or <190 B, this shortens the life of the motor.
• 🔥 Overheating. Arises due to poor ventilation or a faulty fan.
• 🛠️ Mechanical wear. Average compressor service life - 10–15 years.
• 🧊 Water hammer. Occurs if moisture gets into the system (for example, after incorrect refilling of freon).

How to check the compressor:

1. Unplug the refrigerator.
2. Remove the back cover (in some models the compressor is hidden under a decorative casing).
3. Test the windings with a multimeter:
   • Resistance between common terminal (C) and starting (S) — 20–40 Ohm.
   • Resistance between C and working (R) — 10–20 Ohm.
   • The resistance between S and R is the sum of the two previous values.

If the resistance is equal to 0 or infinity —the windings are burned out or torn.

The cost of a new compressor is from 5000 to 15000 ₽, plus 3000–5000 ₽ for work. In old refrigerators (for example Birusa or ZIL) it is sometimes cheaper to buy a new unit than to repair the old one.

5. Clogged capillary tube or filter drier

The capillary tube is a thin channel through which freon enters the evaporator. If it becomes clogged (for example, due to moisture, oil or dirt), the refrigerant does not circulate and the refrigerator stops freezing. Symptoms of blockage:

• 🧊 The freezer is working, but weakly (the temperature is higher -12°C).
• 🔄 The compressor is running non-stop or turns off due to overheating.
• 💧 The condenser (rear grill) is heating unevenly (one part one is hot, the other is cold).
• 🔍 Ice or frost is visible on the capillary tube.

How to remove the blockage:

1. Turn off the refrigerator and defrost it for 12–24 hours.
2. Remove the back panel and find the capillary tube (a thin copper tube running from the filter-drier to the evaporator).
3. Warm the tube with a hair dryer (temperature 150–200°C) - sometimes this helps to “break through” the blockage.
4. If it doesn’t help, you need to clean it with nitrogen under pressure (done in the service).

Cost of cleaning the system: 3000–6000 ₽. If the blockage has damaged the capillary tube, it can be replaced with a new one (price - from 2000 ₽ per meter No Frost Often not only the capillary becomes clogged, but also filter drier it will also have to be replaced (500–1500 ₽).

⚠️ Attention: Do not try to clean the capillary tube with a wire or needle - this may damage it from the inside. Also, do not use chemicals solvents: they destroy the oil in the system.

6. Failure of the fan or No Frost system

In refrigerators with a system No Frost the fan is responsible for air circulation. If it breaks, the freezer will stop cooling, although the compressor will work:

• 🔇 The refrigerator is quieter than usual (there is no sound of the fan running).
• ❄️ Ice is growing on the back wall of the freezer (the fan does not blow and moisture does not evaporate).
• 💨 The refrigerator compartment is warmer than the freezer (the air does not circulates).
• 💡 An error appears on the display (for example, FF or OF in models Samsung).

How to check the fan:

1. Unplug the refrigerator.
2. Remove the back panel of the freezer (in some models, the front bottom cover).
3. Locate the fan (usually it is located behind the evaporator).
4. Check that it rotates freely (sometimes it gets jammed with ice).
5. Connect the fan directly to 12 V (for example, from the power supply) - if it does not spin, a replacement is needed.

Cost of a new fan: 1500–4000 ₽, replacement - 2000–3500 ₽In models. LG and Samsung often it is not the fan itself that fails, but defrost sensor or heater evaporator they also need to be checked.

7. Malfunction of the electronic control module

In modern refrigerators (for example, Samsung RL-60, LG GA-B489, Bosch KGE39XW20) is responsible for the operation of all systems electronic control unit. If it burns out or the firmware is lost, the refrigerator can:

• 🔄 Turn on and turn off immediately.
• 📛 Show errors on display (for example, E1, F2, H1).
• 💡 Humming, but not freezing (the compressor does not receive a command to start).
• 🔌 Do not respond to button presses.

Causes of module failure:

• ⚡ Power surge (the most common reason).
• 💧 Moisture ingress (for example, during defrosting).
• 🛠️ Defective parts (found in inexpensive models).
• 🔥 Overheating (if the refrigerator is in a hot room).

How to diagnose the problem:

1. Check whether the display is on. If not, the problem is in the power supply of the unit.
2. Look at the error code in the instructions (for example, E1 in Atlant - temperature sensor malfunction).
3. Turn off the refrigerator for 10–15 minutes —sometimes resetting the settings helps.
4. If the unit is burned out, it needs to be reflashed or replaced (cost - from 3000 to 10,000 ₽).

In some cases it helps flashing (price - 2000–4000 ₽). For example, in refrigerators Samsung with a system Digital Inverter the settings are often lost after a power surge. If the module burns out completely, it is replaced with a new one. (together with the work - 8000–15000 ₽).

⚠️ Attention: Do not try to repair the electronic unit yourself - this requires special equipment (soldering station, programmer). Incorrect actions can completely damage the refrigerator.

8. When to call a technician: cost of repair vs. buying a new one refrigerator

If you have checked all the possible reasons, but the refrigerator still does not freeze, it’s time to contact the service. Here are the estimated prices for repairs depending on the breakdown:

Is it worth repairing an old refrigerator? Focus on 50% rule: if repairs cost more than half the cost of a new unit, it is better to buy a new model. For example: 50% rule data-i="324">—repair is profitable.

• 💰Refrigerator compressor repair Atlant 2005 will cost 12000 ₽, and the new one Atlant MXM-170 costs 25000 ₽ - repairs are profitable.
• 💰 Replacing the electronic unit in Samsung RL-40 2010 will take 10000 ₽, and the new model Samsung RB-30 worth 35000 ₽ is also profitable to repair.
• 💰 If the refrigerator 20+ years and repairs cost 15000 ₽, and a new one Indesit DF 4180 can be bought for 22000 ₽ - it is better to update the equipment.

Also take into account energy consumption: old class refrigerators C/D spend 2-3 times more electricity than modern ones A+++. For example, Atlant MXM-170 (2005) consumes 1.2 kW/day, and LG GA-B489 (2020) - total 0.5 kW/day. Over 5 years, the difference in electricity bills can exceed the cost of a new refrigerator.

FAQ: Frequently asked questions about refrigerators that do not freezing

🔍 The refrigerator is humming, but not freezing - what's the matter?

Most likely, the problem is freon leak or clogged capillary tube. The compressor is running, but the refrigerant is not circulating. Also check thermostat - if it is broken, the motor may hum without stopping, but there will be no cold.

💡 The light in the refrigerator is on, but it does not turn on. What to do?

This is a sign that there is power, but the compressor does not start. Reasons:

• Broken thermostat or start relay.
• Failed start-protection relay (clicks, but the motor does not starts).
• Burned out compressor (needs replacement).

First, check the relay - it is standing 500–1500 ₽ and changes in 10 minutes.

❄️ The freezer works, but the refrigerator does not. Why?

Probable reasons:

• In refrigerators with No Frost the fan is broken fan or clogged air ducts.
• In models with two compressors the motor of the refrigeration compartment has failed.
• Clogged capillary tube refrigerator chambers.
• Broken temperature sensor in the refrigerator compartment.

🔌 The refrigerator turns off 5-10 seconds after starting. What is this?

This is thermal protection of the compressor is triggered. Reasons:

• Motor overheating (check ventilation).
• Faulty start-protection relay.
• Interturn short circuit in the compressor windings.
• The voltage in the network is too low (<190 V).

If after cooling (10-15 minutes) the refrigerator turns on again and works normally, the problem is overheating. If not, the compressor needs diagnostics.

🛠️ Is it possible to fill the refrigerator with freon yourself?

Technically it is possible, but not recommended. To do this you need:

• A vacuum pump.
• Cylinder with freon (for example, R-134a or R-600a).
• Gauge manifold.
• Experience in soldering copper tubes.

An error during refueling (for example, moisture getting into the system) will lead to to water hammer and compressor breakdown. It is better to entrust this to the specialist.