The refrigerator does not get cold: reasons and what to do

You open the refrigerator door, but instead of the usual flow of cold air, do you feel a barely noticeable coolness? Or worse, is the temperature inside the same as the room? The problem when the refrigerator does not get cold is familiar to many. But don’t rush to call a specialist: in 60% of cases, the cause can be eliminated on your own, without resorting to expensive repairs.

In this article we will analyze all possible causes - from trivial (not tightly closed door) to serious (compressor breakdown). You will learn how to carry out diagnostics without special tools, what manipulations are safe to perform with your own hands, and in what cases immediately disconnect the refrigerator from the network and call a specialist. We will pay special attention to models with the system No Frost —their malfunctions are often disguised as standard failures.

Important: if the refrigerator not only does not freeze well, but makes uncharacteristic sounds (knocking, humming, clicking), go to section on noise —this can be critical for diagnosis.

What to do first: 5 steps before diagnosis

Before disassembling the refrigerator or looking for a breakdown, perform simple checks. They will take no more than 10 minutes, but will help eliminate 30% of false alarms.

• 🔌 Check the power supply: make sure that the plug is firmly inserted into the socket and that the socket itself is working (connect another device, for example, a hair dryer). On some models Samsung i LG during power surges, protection is triggered - the refrigerator may not turn on for 5-10 minutes.
• 🚪 Is the door closed? Check the rubber seal: if it is dirty or deformed, cold air escapes. Carry out a test with a sheet of paper: squeeze it between the door and the body - if the sheet falls out, the seal is not sealed.
• ❄️ Operating mode: the defrost mode (Defrost) or the economy mode (Eco). On the display of some models Bosch i Indesit this is displayed as a snowflake icon with an exclamation mark.
• 📉 Room temperature: if the room is hotter than +30°C, the compressor may not cope. The norm for most refrigerators is up to +25°C.
• 🔧 Food overload: if you have recently loaded a lot of warm food, give the refrigerator 2-3 hours to restore the temperature.

If after these checks the problem remains, proceed to fault diagnosis. Let's start with the most common ones.

The compressor works, but does not freeze: 3 reasons

If the engine hums, but there is no cold, one of three systems is usually to blame: freon circulation, thermostat or condenser. Let's look at each one.

1. Freon leak. The refrigerant (freon) circulates in a closed circuit. If a microcrack appears somewhere (usually in places where tubes are soldered), the gas evaporates and cooling stops. Signs:

• 🔍 The compressor works without stopping, but does not gain temperature.
• 🧊 There is no frost on the back wall of the refrigerator (in models without No Frost).
• 💨 The air in the chamber is warm, even if the motor is humming.

2. Capillary tube is clogged.. Over time, oil deposits or moisture accumulate in the system, which clog the thin tube (capillary). The symptoms are similar to a leak, but the compressor may periodically turn off with a click (overheat protection is triggered).

3. Breakdown of the start-up relay. next to the compressor is responsible for starting it. If the relay burns out, the motor either does not turn on at all or runs jerkily. Sign: the compressor tries to start, but after 1-2 seconds it turns off with a loud click.

⚠️ Attention: if you suspect a freon leak or a blockage. capillary do not try to repair this yourself. Freon is toxic, and soldering the tubes requires a special tool. Contact the service center.

The thermostat or temperature sensor is broken

The thermostat (or electronic sensor in modern models) is the “brain” of the refrigerator, which regulates the inclusion of the compressor. If it fails, the motor either does not turn on at all or works chaotically.

How to check a mechanical type thermostat (old models Atlant, Stinol):

1. Disconnect the refrigerator from the power supply.
2. Remove the protective casing from the thermostat (usually located inside the chamber, next to the light bulb).
3. Find two wires going to the thermostat and short them together (for example, with a screwdriver).
4. Turn on the refrigerator. If the compressor works, the thermostat is faulty.

In electronic models (Samsung RL-60, LG GA-B489), the sensors are checked with a multimeter. The resistance of a working sensor at room temperature should be within 4–6 kOhm. If the readings differ greatly, the sensor must be replaced.

Symptoms of a malfunction:

• 🔄 The compressor starts on. 5–10 seconds and turns off.
• 🌡️ The temperature in the chamber does not correspond to the set one (for example, it is set to +5°C, but actually +15°C).
• 🚨 An error flashes on the display (for example, Er IF on Indesit or E1 on Bosch).

⚠️ Attention: if you short-circuit the thermostat wires and the compressor does not start, the problem may be in starting capacitor or the motor itself. Do not leave the refrigerator in this state for a long time - this can lead to overheating of the windings.

Clogged condenser or fan (for No Frost)

The condenser is a grill on the back wall of the refrigerator that removes heat. If it is clogged with dust, heat exchange is disrupted and the compressor overheats. data-i="143">an additional role is played by the fan that blows on the evaporator. No Frost An additional role is played by the fan, which blows on the evaporator.

How to clean the condenser:

1. Unplug the refrigerator and move it away from the wall.
2. Take a vacuum cleaner with a narrow nozzle or a brush and carefully remove dust from grilles.
3. Wipe the surface with a damp cloth (without detergents!).

For refrigerators No Frost (Samsung RL-44, Indesit DF 5200):

• 🌀 Check whether the fan is spinning when the compressor is running. If not, it may have frozen (turn off the refrigerator for 12 hours to defrost) or the motor has burned out.
• 🧊 If ice has built up on the back wall of the freezer, this is a sign of a malfunction of the defrosting system (Evaporator heating element or defrost timer).

B models Bosch KGE39XW20R and similar ones with electronic control, a clogged condenser can cause an error E02 (compressor overheating). After cleaning, the error should disappear.

What will happen if you do not clean the condenser?

If the condenser is heavily soiled, the compressor wears out, which reduces its service life by 2-3 times. In the worst case, the motor burns out and requires replacement (cost is up to 50% of the price of a new refrigerator).

Problems with the door: seal, hinges, misalignment

If the door does not close tightly, warm air constantly penetrates inside, and the refrigerator cannot fill the required amount. temperature. Most often, the seal (elastic band around the perimeter) is to blame, but sometimes the problem is in the hinges or deformation of the case.

How to check the tightness:

• 📄 Take a sheet of A4 paper and clamp it between the door and the case.
• 🔍 If the sheet is pulled out without effort - the seal does not fit.
• 🔦 Shine a flashlight inside the closed refrigerator: if the light is visible, there are cracks.

What to do:

• 🧼 Cleaning the seal: wash the rubber band with warm water and soap, then wipe with ammonia (will remove grease).
• 🔥 Restoring shape: if the seal is deformed, immerse it in hot water (not boiling water!) for 5-10 minutes, then shape it and close the door for a day.
• 🔧 Adjusting the hinges: if the door sagged, tighten the hinges (on most models they are adjusted with a hexagon).
• 🛠️ Replacing the seal: if the elastic is cracked, it needs to be replaced. For models Atlant i Biryusa seals are sold in repair kits (article number). usually indicated in the instructions).

⚠️ Attention: if the refrigerator is two-chamber, check the tightness of both doors. In models Liebherr CN 4015 and similar there is a problem with it. seal of the freezer compartment can lead to freezing of the refrigerator compartment.

Incorrect settings or program failure

Sometimes the refrigerator does not freeze due to trivial errors in the settings. This is especially true for modern models with electronic control (Samsung RB37, LG GB-B539).

What to check:

• 🌡️ Set temperature: in the refrigerator compartment it should be +4...+6°C, in the freezer - −18°C. If the values are higher, the compressor will not turn on often enough.
• 🔄 Holiday mode: in some models (Bosch KAN92VI30R) there is a function Holidaythat maintains a temperature of +15°C to save energy.
• ❄️ Super freeze: if the function Super Freeze is activated for more than 24 hours, the compressor may overheat and turn off.
• 🔧 Reset settings: after a power surge or a power outage, the settings may be lost. Try resetting them to factory settings (usually the button Reset or combination Power + Freezer).

B refrigerators Indesit BIAA 13 i Ariston Hotpoint a program failure may be indicated by a flashing light Alarm. To reset the error:

1. Disconnect the refrigerator from the power supply for 1 minute.
2. Turn it on and press immediately button Super Cool for 5 seconds.

The refrigerator is noisy and does not freeze: what does this mean?

If it does not exist. cold, uncharacteristic sounds have been added, this narrows the range of possible causes. Let's look at the most common "symptoms":

• 🔊 Loud humming of the compressor: may indicate overload (for example, if the refrigerator has not been turned off for a long time) or motor malfunction.
• 💥 Clicks when starting: most often it is faulty start-up protection relay or burnt capacitor.
• 🌀 Humming without starting the motor: the compressor may have jammed (replacement is required).
• 🌬️ Whistling or hissing: freon leak (especially if the sound comes from the back of the refrigerator).

In models No Frost (Samsung RL-34, LG GA-B429), the noise may come from the fan. If it touches ice or foreign objects, a grinding or cracking noise is heard Solution:

1. Turn off the refrigerator.
2. Let it. defrost for 12–24 hours.
3. Check whether the fan rotates freely (does it touch ice or plastic).

⚠️ Attention: if the compressor hums, but does not start, and the housing gets very hot, this is a sign interturn short circuit in the windings. Further operation is dangerous: it may. not only the motor will burn out, but also the wiring in the house.

Frequently asked questions about refrigerators that do not freeze

Is it possible to turn on the refrigerator after transporting it lying down?

No! If the refrigerator was transported in a horizontal position, oil from the compressor may have entered the cooling circuit. It is necessary to wait 6-12 hours in a vertical position before turning on. Otherwise, there is a risk of clogging of the capillary tube or water hammer in the compressor.

Why the refrigerator does not work. freezes, but the freezer is working?

This is a typical problem for two-chamber refrigerators with one compressor. Reasons:

• Clog in the capillary tube of the refrigeration chamber.
• Malfunction magnetic valve (responsible for switching between chambers).
• Freon leak in the refrigeration compartment circuit.

In models Atlant MHM-1842 and similar valves are located on the back wall, next to the compressor. You can check it with a multimeter (winding resistance is 300–500 Ohms).

How much does it cost to repair if the refrigerator does not freeze?

The cost depends on the reason:

• Replacement of the thermostat: 1,500–3,000 ₽.
• Replacement of the start-up relay: 1,000–2,500 ₽.
• Elimination of leaks freon + refill: 3,500–6,000 ₽.
• Replacement of the compressor: 5,000–12,000 ₽ (depending on the model).

In service centers Samsung i LG Diagnostics are often free if you agree to repairs.

Is it possible to use a refrigerator if it does not freeze well?

Short-term (1-2 days) - yes, but with caution:

• Do not store perishable foods (meat, milk, fish).
• Reduce the loading of the chambers.
• Control the temperature with a thermometer.

If the problem is a freon leak or a faulty compressor, long-term operation will lead to complete failure.

How to check if the compressor is working?

Checking methods:

1. Put your hand on the back wall: if the compressor is working, it should vibrate and be warm.
2. Listen: a working motor makes a uniform hum without clicks.
3. Use a multimeter: the winding resistance should be 20–40 Ohms (the exact values are in the instructions for the model).