The refrigerator works, but does not freezes: reasons and what to do

Have you noticed that the refrigerator is on, the motor is humming, but the food in the freezer has begun to melt, and in the main compartment the temperature is higher than normal? This situation is familiar to many owners of equipment Indesit, Samsung, Atlant and other brands. The problem “the refrigerator works, but does not freeze” can have both simple reasons (clogged filter, loose door) and serious breakdowns (freon leak, compressor failure).

In this article we will analyze 7 main reasonswhy the refrigerator stopped freezing, despite the fact that it is turned on and makes the usual sounds. You will learn how to diagnose a malfunction yourself, when you can do without a technician, and in what cases attempting to repair it yourself can aggravate the breakdown and lead to an expensive restoration. We will also give step-by-step instructions for eliminating the most common problems.

First, check the obvious: whether the power is cut off in the outlet, whether the network is overloaded (the indicators on the panel should be on). If the power supply is fine, but the refrigerator is not cooling, read on.

1. The capillary pipeline or filter drier is clogged

One ​​of the most insidious malfunctions is clogging in the freon circulation system. The refrigerant cannot move freely along the circuit, which is why the compressor runs “idle” and no cooling occurs. Most often it becomes clogged capillary tube (thin copper channel) or filter drier - it retains moisture and small particles, but over time it can become completely clogged.

Signs of blockage:

• 🔊 The compressor runs without stopping or turns on for 2-3 minutes and turns off
• ❄️ The condenser (grid at the back of the refrigerator) remains cold
• 🌡️ The temperature in the chambers increases gradually, not sharply

What to do? It is impossible to clean the system on your own - you will need special equipment for purging with nitrogen or replacing the filter-drier. If you suspect a blockage, it is better to call a professional. However, you can check indirect signs:

Touch the condenser - if it is barely warm, this is a bad sign

Listen to the compressor - if it is clogged, it works louder than usual

Check if it flickers indicator light (in some models Liebherr this is a signal of problems with freon circulation)-->

⚠️ Attention: Do not try to clean the tubes with wire or other objects! This can damage the interior surface and make the clog worse. In 90% of cases, the filter drier must be replaced, not cleaned.

2. Freon leak - why the refrigerator stopped freezing

Freon (refrigerant) is the “blood” of the refrigeration system. If it leaks through microcracks in the tubes or solder joints, the compressor begins to work in vain, driving air instead of refrigerant. Leakage can occur due to:

• 🔧 Mechanical damage (for example, during transportation or careless defrosting)
• 🕰️ Corrosion of aluminum tubes (a common problem in refrigerators older than 10 years)
• 🔥 Overheating of the compressor (leads to depressurization of solder joints)

How to recognize a leak:

1. The compressor runs without stopping, but there is no cold.
2. The condenser (rear grille) remains at room temperature.
3. Oil stains may appear at the leak site (freon comes out along with oil).

⚠️ Attention: If a leak occurs in the foamed part of the case (for example, in the freezer compartment No Frost), it is impossible to detect it without a special leak detector. In this case, the technician will look for the location of the damage, filling the system with nitrogen under pressure.

Once a month

Once every 3-6 months

Once a year or less

Only when ice appears-->

3. Failure of the thermostat (thermostat)

The thermostat is the “brain” of the refrigerator, which controls the temperature and sends signals to the compressor. If it fails, the compressor either does not turn on at all or operates chaotically. In modern models (Samsung RL-33, LG GA-B489), instead of a mechanical thermostat, an electronic sensor is used, but the operating principle is similar.

Signs of a malfunctioning thermostat:

• 🔄 The compressor turns on for 5-10 seconds and immediately turns off (the cycle is repeated constantly).
• 🌡️ The refrigerator compartment is too cold, and the freezer compartment is warm (or vice versa).
• 🔌 There is no click when turning the thermostat knob (in mechanical models).

How to check the thermostat yourself:

1. Disconnect the refrigerator from network.
2. Remove the protective casing (usually it is secured with latches or screws).
3. Find the thermostat - this is a small box with a tube going to the evaporator.
4. Ring the contacts with a tester: at room temperature they should be closed.

In most cases, the thermostat is not repaired, but replaced with a new one. The cost of a part for popular models (Atlant MXM-1808, Beko CN 325120) is from 800 to 2500 rubles. If you are not confident in your skills, it is better to entrust the replacement to a specialist: an incorrect connection can damage the compressor.

4. Compressor malfunction: when the motor hums, but does not pump freon

The compressor is the “heart” of the refrigerator. If it is worn out or burnt out, it may hum, but not create the necessary pressure for freon circulation. Frequent causes of breakdown:

• 🔥 Overheating due to poor ventilation (the refrigerator is standing close to the wall).
• ⚡ Power surges (especially important for cottages and old houses).
• 🕰️ Natural wear and tear (compressor service life - 10–15 years).

How to diagnose the problem:

1. Touch the compressor (the black “barrel” on the back of the refrigerator). If it is hot, but does not vibrate, it is possible turn-to-turn breakdown.
2. Listen to the sound: a working compressor hums smoothly, a broken one may “rumble” or make intermittent sounds.
3. Check the starting relay (small box next to compressor) - often it “sticks” and does not start the motor.

What is an interturn breakdown?

This is a short circuit between the turns of the compressor winding. Because of it, the motor overheats, but cannot create the required pressure. It can only be diagnosed with a special device (ohmmeter) or by indirect signs: the compressor hums, but the condenser remains cold.

⚠️ Attention: If the compressor burns out, replacing it will cost 50–70% of the cost of a new refrigerator. In this case, it makes sense to consider purchasing new equipment, especially if your model is more than 10 years old.

5. Problems with the No Frost system: why the upper chamber does not freeze

In refrigerators with the system No Frost (Samsung RB-30 J3200, LG GA-B409) cooling occurs due to the circulation of cold air, which is pumped by a fan. If it breaks or freezes, the freezer stops working, although the compressor continues to hum.

Causes of breakdown:

• 🍂 Fan freezing due to a faulty defrost heater.
• 🔌 Fan motor failure (often due to voltage drops).
• 🧊 Icing of the evaporator (if the defrost timer does not work).

How to check:

1. Turn off the refrigerator and defrost it for 10-12 hours.
2. After turning on, listen: if the fan does not makes noise - it is broken.
3. Shine a flashlight into the freezer: if there is ice on the back wall, the defrosting is not working.

6. Violation of tightness: why the refrigerator does not cool when the door is open

If the sealing rubber on the door is torn or has lost elasticity, warm air constantly enters the chamber. The compressor tries to compensate for this by working non-stop, but the temperature still does not drop to the desired level.

How to check the tightness:

• 📄 Take a sheet of paper and close it with the door. If the sheet is easily pulled out, the seal is faulty.
• 🔍 Inspect the rubber band for cracks, dirt or deformations.
• 💡 In the dark, shine a flashlight inside the closed refrigerator - if light is visible from the outside, there is a gap.

What do:

1. Clean the seal with warm water and soap (sometimes it sticks due to grease).
2. If the rubber is deformed, try restoring its shape with a hairdryer (heat to 60–70°C and shape).
3. In case of serious damage, replace the seal (cost - from 1000 to 3000 rubles).

⚠️ Attention: In refrigerators with electronic control (Bosch KGE39AW25R, Electrolux ERN 1400 FOW) a leaky door can cause an error on the display (for example, E1 or Door Open). In this case, after replacing the seal, the error must be reset through the service menu.

7. Electronic faults: control board failures

In modern refrigerators, electronic control unitis responsible for the operation of all systems. If it fails (due to power surges, moisture or manufacturing defects), the compressor may turn on chaotically or not receive cooling commands.

Signs of board failure:

• 📛 Errors flash on the display (E5, FF, Er —depends on the model).
• 🔄 The refrigerator turns on/off spontaneously.
• 🎛️ Does not respond to button presses or temperature changes.

What to do:

1. Disconnect the refrigerator from the network for 10-15 minutes (sometimes a “reboot” helps).
2. Check the voltage in the outlet - it should be 220-230 V (use a stabilizer during surges).
3. If the board is burned out (blackened elements are visible), it needs to be replaced or repaired by a service center center.

What to do if the refrigerator does not freeze: step-by-step instructions

Before calling a technician, follow these steps:

Check that Is the light inside lit (if not, there is a power problem)

Make sure that the thermostat is not set to 0 or OFF

Clean the rear grille (condenser) from dust

Defrost the refrigerator for 12 hours and turn on again

Check the door seal for leaks -->

If after these steps the refrigerator does not work, pay attention to the following symptoms:

• 🔊 The compressor does not turns on: problem with the thermostat, start relay or control board.
• 🔊 The compressor hums, but does not cool: freon leak, tube blockage or compressor malfunction.
• ❄️ The freezer is working, but the refrigerator is not: fan failure (in No Frost) or freezing of the drain hole.

⚠️ Attention: If a refrigerator with a system No Frost stops freezing after defrosting, do not try to break off the ice with a knife or other objects! This can damage the evaporator and lead to a freon leak. Use only warm water or special means for defrosting.

FAQ: Frequently asked questions about refrigerators that do not freeze

Can I fill the refrigerator with freon myself?

No. To refill, you need a special tool (vacuum pump, pressure manifold, leak detector), as well as knowledge of the exact type of freon (for example R-600a or R-134a). Improper refilling can lead to an explosion or poisoning (freon is toxic in high concentrations).

How much does it cost to repair a refrigerator that does not freeze?

The cost depends on the breakdown:

• Replacing the thermostat: 1500–3000 RUB
• Freon leak repair: RUB 3,500–6,000
• Compressor replacement: RUB 5,000–12,000
• Control board replacement: RUB 4,000–8,000

In some cases (for example, if the compressor breaks down in an old refrigerator), it is more profitable to buy new equipment.

Why does not the new refrigerator freeze after delivery?

Probable reasons:

1. The shipping bolts are not removed (they fix the compressor during transportation).
2. The refrigerator was not plugged in (some models require 2-4 hours for the first start).
3. The door seal is damaged (check the tightness).

If after checking the problem remains, contact the store for warranty.

How long can you store food if the refrigerator does not freeze?

Shelf life at room temperature (about 20°C):

• 🥛 Milk, yoghurts: up to 2 hours.
• 🍗 Raw meat/fish: up to 1 hour.
• 🥚 Eggs: up to 1 day (in a cool place).
• 🧀 Hard cheese: up to 4-6 hours.

To extend the period, wrap the food in foil or a towel and place it in the coolest place (for example, on the balcony, if it’s not hot outside).

Can the refrigerator not freeze due to a dirty condenser?

Yes. If the rear grille (condenser) is clogged with dust, heat transfer is impaired and the compressor overheats. As a result, it may shut down prematurely or operate ineffectively. Clean the condenser with a vacuum cleaner or brush (after unplugging the refrigerator from the mains!).

If your refrigerator has stopped freezing, but the compressor is working, do not rush to write it off. In 60% of cases, the problem is solved by replacing the thermostat, cleaning the system, or restoring the seal. However, if there is a freon leak or a compressor breakdown, you cannot do without professional repairs. The main thing is not to delay diagnostics: the longer the refrigerator operates in faulty mode, the higher the risk of damaging other components.