Have you opened the refrigerator, and the food in the main chamber is warm, although the freezer compartment is working as usual? This problem occurs in 30% of two-chamber refrigerators older than 5 years. In 80% of cases, it can be fixed on your own without resorting to expensive repairs. But first you need to understand why this happens.
In most modern models (Indesit, Samsung, LG, Atlant), the freezer and refrigerator compartments are connected by a single cooling system, but are controlled by separate elements. If the freezer freezes, but the refrigerator does not, this is a signal of a malfunction in refrigerant circulation circuit, electronics or mechanical components. Let's consider all possible reasons - from banal clogging of the capillary tube to failure of the compressor.
1. A clogged capillary tube is the most common cause
In 60% of cases, the thin copper tube through which freon enters the evaporator of the refrigeration chamber is to blame. Over time, oil decomposition products, moisture or mechanical particles accumulate in the system, blocking the flow of refrigerant. The freezer continues to work because its evaporator is located closer to the compressor - the freon reaches it, but does not push further. clogging of the capillary pipeline - a thin copper tube through which freon enters the evaporator of the refrigeration chamber. Over time, oil decomposition products, moisture or mechanical particles accumulate in the system, blocking the flow of refrigerant. The freezer continues to work because its evaporator is located closer to the compressor - the freon reaches it, but is not pushed further.
Signs of clogging:
- 🔹 The compressor runs without stopping or with short pauses
- 🔹 The condenser (the grill at the back of the refrigerator) is evenly hot, without cold spots
- 🔹 In the refrigerator compartment the temperature is above +10°C, in the freezer it is normal
What should I do? If you are not a refrigeration equipment master, Do not try to clean the tube yourself - this requires special equipment (hydraulic press, vacuum pump) and can lead to depressurization of the system. Contact service. The average cost of cleaning is from 3,500 to 6,000 rubles.
2. Freon leak - why the refrigerator “heats”
Freon (refrigerant) circulates in a closed circuit. If a microcrack appears somewhere, the gas gradually evaporates. The freezer lasts longer because its evaporator is located closer to the compressor, and the freon requires less effort to reach it. The refrigeration compartment remains warm, since there is no longer enough refrigerant for a full cycle.
How to determine a leak:
- 🔧 Oil stains are visible on the tubes or in soldering areas (freon leaves along with the oil)
- 🔧 The compressor is turned on for 5-10 seconds and turns off - the system “catches” the pressure
- 🔧 There is no uniform heating on the back wall of the refrigerator (near the condenser)
⚠️ Attention: Freon is colorless and odorless, but in high concentrations it can cause dizziness. If you suspect a leak, ventilate the room and do not turn on the refrigerator until repairs.
The leak can only be repaired by a service center. The technician will find the location of the damage (most often it is places for soldering tubes or aluminum evaporator), solder it and fill the system with freon. The cost of repairs is from 4,000 to 10,000 rubles, depending on the model.
3. Malfunction of the temperature regulator (thermostat) of the fridge compartment
The thermostat is the “brain” of the fridge compartment. It measures the temperature and sends a signal to the compressor to turn on/off. If the thermostat is broken, the compressor either does not receive a command to cool the refrigerator compartment or does not work correctly. The freezer remains operational, as it is controlled by a separate sensor (in models with two compressors) or a common one, but with priority to the freezer.
How to check the thermostat:
- Disconnect the refrigerator from network.
- Remove the protective casing inside the refrigerator compartment (usually it is plastic, fastened with latches).
- Find the thermostat - this is a small box with a tube attached to the evaporator.
- Ring the contacts with a tester: at room temperature they should be closed.
If the thermostat is faulty, it needs to be replaced. The cost of a new sensor for popular models (Samsung RL-33, Indesit DF 4180, LG GA-B409) is from 800 to 2,500 rubles. Do-it-yourself replacement is possible if you are confident in your skills.
Disconnect the refrigerator from the mains
Defreeze both chambers
Prepare a screwdriver and a multimeter
Take a photo of the wiring diagram -->
4. No Frost fan failure - why the refrigerator does not blow cold
In refrigerators with a system No Frost (Samsung RB-30 J3200, LG GA-B489, Bosch KGE39XW20R, the cold is distributed among the chambers using a fan. If it breaks, the freezer continues to freeze (the cold comes directly from the evaporator), but no cold air enters the refrigerator compartment. Frequent reasons:
- 🌀 Icing of the fan blades (due to a malfunction of the defrost heater)
- 🌀 Wear of bearings or breakage of the motor winding
- 🌀 Ingress of foreign objects (for example, pieces of food films)
How to check the fan:
- Turn off the refrigerator and defrost it for 12 hours.
- Remove the back panel in the freezer (usually it is secured with screws).
- Try to turn the fan blades by hand - they should rotate easily, without squeaking.
- Connect the refrigerator and listen: if the fan does not make noise, it is not working.
If the blades do not spin, check if ice or foreign objects are blocking them. If the fan burns out, a replacement will be required (the cost of the part is from 1,500 to 4,000 rubles).
What to do if the fan is blocked by ice?
If the fan blades are covered with ice, do not try to pick it off with a knife - this may damage the plastic. Correct actions:
1. Turn off the refrigerator and leave the doors open for 24 hours.
2. After defrosting, check the operation of the defrost heater (it should turn on every 8-12 hours).
3. If ice forms again, replace the burnt-out heater or defrost timer.
5. Problems with the solenoid valve (in single-compressor models)
In refrigerators with one compressor (Atlant MHM 1705, Biryusa 10, Stinol 100) solenoid valveis responsible for the distribution of freon between the chambers. It switches the flow of refrigerant either into the freezer or into the refrigerator compartment. If the valve is jammed in the “freezer” position, the refrigerator compartment remains without cooling.
Symptoms of malfunction valve:
- 🔌 The compressor works constantly, but the refrigerator does not cool
- 🔌 When switching modes, a click is heard, but the temperature does not change
- 🔌 The freezer freezes food (temperature below -24°C)
How to check the valve:
- Find the valve - it is located on the compressor tube, has a cylindrical shape with wires.
- When the refrigerator is turned on, listen: a working valve makes a slight click when switching.
- If there is no click, the valve defective.
Replacing the valve will cost 2,000–4,500 rubles. In some models (Stinol, Biryusa) it can be repaired - just clean the contacts or replace the coil.
6. A clogged drainage hole is an indirect reason for the lack of cold
If the drainage hole in the refrigerator compartment is clogged, the condensate does not go into the pan, but accumulates at the bottom. This leads to:
- 💧 Formation of a puddle under the vegetable boxes
- 💧 Increased humidity and disruption of heat transfer
- 💧 Icing of the evaporator (in models with a drip system)
How clean the drainage:
- Turn off the refrigerator and remove all products.
- Find the drainage hole (usually it is located on the back wall, under the evaporator).
- Rinse it with warm water using a syringe or straw.
- For complex for blockages, use wire (carefully so as not to damage the plastic).
If the problem remains after cleaning, check drain tube. In some models (Indesit BIAA 13, Samsung RT-25) it may freeze or break.
7. Malfunction of the electronic control unit
In modern refrigerators with a display (LG DoorCooling+, Samsung Twin Cooling) it is responsible for the distribution of cold electronic module. If it burns out or fails, the compressor can work, but there is no signal to cool the refrigeration chamber. Frequent reasons:
- ⚡ Power surge
- ⚡ Moisture on the board (for example, during defrosting)
- ⚡ Wear of capacitors or tracks on the board
Signs of module failure:
- 📱 The display shows an error (for example,
E1,FFon Samsung orALon LG) - 📱 The refrigerator does not respond when pressing the buttons
- 📱 The compressor turns on randomly, without connection with the set temperature
Independent repair of the board is possible if you understand electronics. In most cases, it is easier to replace the entire module (cost - from 5,000 to 15,000 rubles before replacement). check:
- 🔌 Voltage in the socket (should be 220–230 V)
- 🔌 Integrity of the wires going to the module
Comparison of causes and cost of repair
| Cause of malfunction | Symptoms | Repair cost (₽) | Can it be eliminated yourself? |
|---|---|---|---|
| Clogged capillary tube | The compressor is running non-stop, the condenser is hot | 3 500–6 000 | ❌ No |
| Freon leakage | Oil stains on the tubes, the compressor turns on for 5–10 seconds | 4 000–10 000 | ❌ No |
| Thermostat malfunction | The compressor does not turn on or works chaotically | 800–2 500 | ✅ Yes |
| Fan failure No Frost | It’s cold in the freezer, not in the refrigerator, you can hear a hum | 1 500–4 000 | ✅ Partially |
| Faulty solenoid valve | The freezer is freezing, the refrigerator does not cool | 2 000–4 500 | ✅ Yes |
If your refrigerator is under warranty, do not try to repair it yourself. In 90% of cases, this will lead to a refusal of warranty service. Contact an authorized service center of the brand.
⚠️ Attention: Parts for refrigerators may differ even within the same one. models, but from different years of manufacture. Before purchasing spare parts, check their part numbers with those indicated in the device passport or on the nameplate (usually located on the back wall).
FAQ: Frequently asked questions about a non-working refrigerator
Can the refrigerator not cool due to improper installation?
Yes If. the refrigerator is too close to the wall (less than 5 cm) or next to the heat source (battery, stove), the compressor overheats and cannot cope with the load, since it requires less effort to cool. Check:
- 🔹 The gap between the refrigerator and the wall (should be ≥5 cm)
- 🔹 Room temperature (optimally 18–22°C)
- 🔹 Operation of ventilation grilles (they should not be closed)
Why after defrosting the refrigerator does not cool, but the freezer works?
Probable reasons:
- Moisture on the electronic module —if you washed the refrigerator without unplugging it.
- Compressor jamming —after a long period of inactivity, it may not start.
- Fan icing No Frost —if you did not wait until full defrosting.
What to do: turn off the refrigerator for 12 hours, then turn it on again. If the problem persists, call a specialist.
How long can you store food if the refrigerator is not working and the freezer is freezing?
Shelf life at room temperature (+20–25°C):
- 🥛 Dairy products (kefir, sour cream) - up to 4 hours
- 🥩 Raw meat/fish - up to 2 hours
- 🥚 Eggs - up to 7 days (if not washed)
- 🍎 Fruits/vegetables - 1-3 days (depending on the type)
If the freezer is working, put the most perishable foods into it (meat, fish, milk). They will last up to 2-3 days at -18°C.
Can the freezer be temporarily used as a refrigerator?
Yes, but with reservations:
- ✅ Suitable for short-term storage (1-2 days).
- ❌ You can’t store food like this for longer - they will freeze and lose their taste.
- ⚠️ Check the temperature regularly: if it is below -12°C, the food will begin to freeze.
Optimal mode for temporary storage: set the freezer temperature -8...-10°C.
How to check if the compressor is working if the refrigerator is not cooling?
Checking methods:
- Touch the compressor (the black “tank” at the back of the refrigerator). If it vibrates and is hot, it is working.
- Listen: a working compressor makes a uniform hum. If you hear clicks or silence, it is faulty.
- Use a multimeter: check the resistance of the windings (should be 20-40 Ohms).
If the compressor does not turn on, but the light inside the refrigerator is on, the problem is in start relay or electronics.