Have you opened the refrigerator, and instead of the usual coolness there is room temperature, but the freezer continues to properly freeze food? This situation is familiar to many owners of refrigerators Atlant, Samsung, Indesit and other brands. The problem seems paradoxical: how is it that one part of the unit functions, but the other “fails”? In fact, this phenomenon has logical technical explanations, and in 60% of cases the malfunction can be fixed without calling a technician.
In this article we will analyze 7 main reasonswhy the refrigerator stopped cooling, mientras que the freezer continues to work. You will learn how to independently diagnose a breakdown (even without special tools), which components most often fail in models with a system No Frost and drip defrosting, and also when you should immediately disconnect the refrigerator from the network to avoid serious consequences. For clarity, we have added symptom tablea checklist for checking and interactive surveys - so you can more accurately determine the source of the problem.
Spoiler: if your refrigerator LG or Bosch with electronic control suddenly stopped cooling, but the freezer is working - it may not be only the compressor that is to blame. Sometimes everything is solved by trivial reboot the control board or cleaning of the drainage system. And in older models Stinol or Biryusa clogging of the capillary tube is more common - you can clean it yourself in 20 minutes.
1. Capillary tube clogged: why the refrigerator “loses cold”
The capillary tube (or capillary choke) is a thin copper channel through which the refrigerant (freon) flows from the condenser to the evaporator. Its diameter is comparable to a fishing line - only 0.6-1.2 mm, so even microscopic particles of oil, rust or moisture can block the flow. As a result freon does not reach the evaporator of the refrigeration chamber, but circulates only in the freezer circuit.
How does this manifest itself:
- 🔹 The freezer operates in normal mode (temperature −18°C and below).
- 🔹 The refrigerator compartment does not cool or cools slightly (temperature +10...+15°C).
- 🔹 The compressor runs non-stop or turns on too often.
- 🔹 Condenser (grid on the back wall) evenly warm, without cold areas.
Causes of blockage:
- 🛢️ Oil decomposition in the compressor (typical for refrigerators older than 10 years).
- 💧 Moisture ingress into the system (for example, when freon is charged incorrectly).
- 🔧 Corrosion of copper tubes due to microcracks.
What to do? At home, you can try tapping the capillary tube a wooden block (not metal!) in the direction of freon movement. If the blockage is not severe, vibration will help clear it. If not, you will need purging with nitrogen or replacing the tube (this is already a job for the master).
2. Malfunction of the temperature regulator (thermostat) of the fridge compartment
The thermostat is the “brain” of the fridge compartment, which controls the temperature and sends a signal to the compressor to turn on/off. If it breaks, the compressor either does not receive a command to cool the refrigeration section or operates in the wrong mode. At the same time the freezer remains operational, since it often has its own separate sensor.
Signs of thermostat failure:
- 🔄 The compressor does not turn on at all or works in short cycles (5-10 seconds).
- 🌡️ In the refrigerator compartment the temperature is higher than +15°C, although the freezer is freezing.
- 🔊 Clicks when turning the thermostat knob (in mechanical models).
- 💡 The light inside the refrigerator is on, but there is no cooling.
How to check the thermostat:
- Disconnect the refrigerator from the network.
- Remove the protective casing of the thermostat (usually it is located inside the chamber, next to the light bulb).
- Disconnect the wires from the thermostat terminals and short them together (for example, with an insulated screwdriver handle).
- Turn on the refrigerator: if the compressor starts working, the thermostat is faulty.
Disconnect the refrigerator from the outlet
Remove the thermostat cover (usually on 2-4 screws)
Close contacts 3 and 4 (or 2 and 3 - see the diagram on the case)
Turn on the refrigerator and check the operation of the compressor -->
If the thermostat is mechanical (for example, in refrigerators Nord or Minsk), you can replace it yourself - the cost of the part is from 500 to 1500 rubles In electronic models (Samsung RB30J3000, LG GA-B489), the temperature sensor (thermistor) often fails, which also needs to be replaced.
3. Freon leak: why the freezer “takes away” all the cold
Freon is a refrigerant that circulates through the system and removes heat. If it leaks, the pressure in the circuit drops and the compressor cannot “pump” cold to the refrigeration chamber. The freezer continues to work because:
- Its evaporator is located closer to the compressor.
- Some models use a separate cooling circuit for the freezer.
Causes of freon leakage:
| Cause | How does it manifest | Can it be eliminated on its own |
|---|---|---|
| Corrosion of evaporator tubes | Rusty spots on the back wall, oil under the refrigerator | No (requires soldering and refueling) |
| Mechanical damage to the circuit | Visible cracks, dents on the tubes | No |
| Depressurization of the factory seam | Leakage through the soldering area (often in the corner of the evaporator) | No |
| Breakdown of the capillary tube | The refrigerator stops freezing abruptly, without preliminary symptoms | No |
How to diagnose leakage:
- 🔍 Inspect the back wall of the refrigerator for oil stains (freon evaporates, but the oil remains).
- 👂 Listen: if the compressor is working, but does not turn off for more than 30 minutes is a sign of low pressure in the system.
- 🧊 Touch the condenser (grid on the back): if it room temperatureand it should be hot, there is not enough freon.
⚠️ Attention! If you suspect a freon leak, immediately unplug the refrigerator. Running the compressor “dry” (without refrigerant) leads to its overheating and failure. In models with an inverter compressor (Samsung, LG), this can happen after 1-2 hours of continuous operation.
4. Problems with the fan in No Frost systems
Refrigerators with the system No Frost (for example, Indesit DF 4180, Bosch KGN39XL30) are equipped with a fan that distributes cold air from the freezer throughout the refrigerator compartment. If the fan breaks or is blocked by ice, the cold stops flowing to the main compartment, and the freezer continues to work.
Signs of a fan malfunction:
- ❄️ The refrigerator compartment does not cool, but the temperature in the freezer is normal.
- 🔇 There is no characteristic fan noise (in normal mode it turns on for 1-2 minutes every hour).
- 🧊 Ice forms on the back wall of the refrigerator compartment (if the fan is blocked).
How to check the fan:
- Unplug the refrigerator.
- Remove all food from the refrigerator cameras.
- Remove the back panel (usually it is attached with latches or screws).
- Check whether ice or foreign objects are blocking the fan blades.
- Turn the blades by hand - they should rotate freely, without jamming.
If the fan does not rotate or makes strange sounds, it needs to be replaced. The cost of a part for popular models is from 1000 to 2500 rubles. In 30% of cases, the problem is solved by defrosting the refrigerator: the ice melts and the fan starts working again.
Once every 6 months
Once a year
Only when it appears ice
Never defrosted -->
5. Control board failure: why electronic refrigerators “glitch”
In modern electronically controlled refrigerators (Samsung RL-34, LG DoorCooling+, Atlant XM 6025-031), the control board is responsible for the distribution of cold. If it fails, the compressor can only work on the freezer, ignoring the refrigerator compartment. Most often this happens due to:
- ⚡ Power surges on the network (even if you have a stabilizer).
- 💦 Moisture ingress on the contacts (for example, during defrosting).
- 🔥 Overheating due to poor ventilation (the refrigerator is close to the wall).
Symptoms of board failure:
- 📛 Errors appear on the display (for example,
E1,FF,dH—see the instructions for decoding). - 🔄 The refrigerator spontaneously reboots.
- 🌡️ The temperature in the refrigerator compartment does not correspond to the settings (for example, it shows +5°C, but actually +18°C).
- 🔊 The fan and compressor work chaotically (they turn on and off without logic).
What to do:
- Reboot the refrigerator: unplug it for 10-15 minutes, then turn it on again. In 40% of cases, this helps clear errors.
- Check error codes on the display - they will tell you which board module has failed.
- Inspect the board for darkened or swollen elements (capacitors, resistors).
If rebooting does not help, the board will have to be repaired or replaced. The average cost of repairs is 2000–5000 rubles. In refrigerators Liebert and Beko boards often fail due to manufacturing defects - check if your model is covered by warranty.
What to do if the refrigerator shows an error again after rebooting?
If after disconnecting from the network the error appears again, this means that the problem is hardware (for example, a triac or microcircuit burned out). In this case:
1. Take a photo of the board on both sides - this will help the technician find the fault faster.
2. Do not try to solder the board yourself if you do not have experience - modern microcircuits are sensitive to static electricity.
3. Check with the service center to see if the board is available specifically for your model (sometimes you have to wait 2-3 weeks).
6. Clogged drainage system: when water blocks the cold
The drainage system is responsible for removing condensate that forms during operation of the refrigerator. If the drain hole or tube becomes clogged, water will pool under the evaporator, freeze, and block cold air from entering the refrigerator compartment. The freezer works normally, since its circuit is not affected.
Signs of clogged drainage:
- 💧 Water accumulates under the vegetable drawers.
- ❄️ Ice forms on the back wall of the refrigerator compartment.
- 🌬️ The flow of cold air from the freezer is weak or absent.
How to clean the drain:
- Unplug the refrigerator.
- Remove all food from the refrigerator compartment.
- Find the drainage hole (usually it is located on the back wall, under the evaporator).
- Clean the hole a plastic tube (for example, from a cocktail straw) or a syringe with warm water.
- Rinse the drainage tube (it goes into the container on the compressor) with a soda solution (1 tablespoon per 200 ml of water).
If the ice has already accumulated, defrost the refrigerator for 10-12 hours, then repeat the procedure. In models Atlant and Stinol the drainage hole often becomes clogged due to design features - clean it prophylactically every 3-4 months.
7. Incorrect operation: when the user is to blame
Sometimes the refrigerator stops cooling not because of a breakdown, but because of a violation of the operating rules. Here are the most common mistakes:
- 🚪 The refrigerator door does not close well (check the seal and hinges).
- 🔥 The refrigerator is located next to the stove or battery (the temperature in the chamber rises due to external heat).
- 📦 Overload with food (air circulation is disrupted).
- 🧊 Frequent and prolonged opening of the door (especially in hot weather).
- ❄️ Incorrect defrosting (for example, chipping off ice with a knife, which leads to damage to the evaporator).
How to check:
- 📏 Measure the gap between the door and the body - it should be the same around the entire perimeter.
- 🌡️ Check the room temperature: if it is above +30°C, the refrigerator may not be able to cope with the load.
- 🔍 Inspect the seal: if it is cracked or deformed, it needs to be replaced.
If the problem is in the seal, you can repair it yourself. To do this:
- Heat the seal hairdryer (temperature 50–60°C) and straighten it with your hands.
- Lubricate the rubber silicone grease (sold in car dealerships).
- Adjust the door hinges if they are sagging.
FAQ: Frequently asked questions about a non-working refrigerator
🔹 Is it possible to use the refrigerator if the freezer is working but the refrigeration section is not?
For a short time (1-2 days) it is possible, but only if the compressor is not working in continuous mode. If it does not turn off for more than 1 hour, unplug the refrigerator to avoid overheating. It is better to transfer the products from the refrigerator compartment to the freezer or cooler bag.
🔹 How much does it cost to repair if the refrigerator is not cold and the freezer is freezing?
The cost depends on the reason:
- Replacing the thermostat - 1000–2000 rubles.
- Cleaning the capillary tube - 2500–4000 rubles.
- Elimination of freon leakage + refilling - 3000–6000 rubles.
- Repair of the control board - 2000–5000 rubles.
- Replacement of a No Frost fan - 1500–3000 rubles.
Service centers often offer discounts on diagnostics (for example, if you do the repairs from them).
🔹 Why in the refrigerator No Frost freezer is it freezing, but the refrigerator is not?
In 90% of cases, the culprit is fanwhich distributes cold air. If it is blocked by ice or broken, cold will not flow into the refrigerator compartment. Other possible causes:
- Malfunction damper (in models with electronic control).
- Failure temperature sensor refrigerator compartment.
- Clogging air duct between the freezer and the refrigerator compartment.
🔹 How check if the compressor is working if the refrigerator is not cooling?
Touch the compressor (the black “barrel” on the back of the refrigerator):
- If it is vibrates and is hot —it is working.
- If cold and quiet —does not turn on (problem in the thermostat, board or start relay).
- If hot, but does not vibrate —possible blocking or interturn short circuit.
Also listen: a working compressor produces a uniform hum without clicks or knocks.
🔹 Is it possible to fill the refrigerator with freon yourself?
No, if you do not have special equipment (vacuum pump, pressure gauge manifold and freon cylinder). Refilling the refrigerant requires:
- Accurate calculation of the amount of freon (excess is as harmful as undercharging).
- Evacuating the system (removing moisture and air).
- Soldering the leak site (if there was one).
Self-refueling without skills can lead to compressor breakdown or explosion of the cylinder (freon under pressure!).