The refrigerator does not cool, but the freezer works: reasons and what to do

Have you opened the refrigerator, and instead of the usual cold there is warm air and melted food? At the same time, the freezer works as if nothing had happened, the food in it is frozen, and the compressor hums without stopping. The situation is familiar to many owners of two-chamber refrigerators Atlant, Samsung, Indesit and other brands. What is the reason for this behavior of the equipment, and is it possible to fix the problem yourself?

This malfunction is one of the most common in refrigerators with a system No Frost and drip defrosting. In 80% of cases, it is not compressor failure that is to blame (as many people think), but minor failures in the refrigerant circulation system or electronics. We will consider all possible causes - from banal fan freezing to serious freon leaks, and also give step-by-step instructions for diagnosis and repair.

1. The fan or air duct is clogged (No Frost system). If your refrigerator is equipped with a system (this is almost all modern models), then the problem with cooling the main chamber is often associated with clogging of the air ducts. The fan is responsible for uniformly distributing cold air from the freezer to the refrigerator compartment. If it stops rotating, the cold simply does not enter the main chamber.

If your refrigerator is equipped with a system No Frost (these are almost all modern models LG, Samsung, Bosch), then the problem with cooling the main chamber is often associated with freezing of the fan or clogged air ducts. The fan is responsible for uniformly distributing cold air from the freezer to the refrigerator compartment. If it stops rotating, the cold simply does not enter the main chamber.

How to check:

• 🔊 Listen: in normal mode, the fan makes a slight noise (like a computer cooler). If there is silence, it doesn’t work.
• 🧊 Open the freezer and shine a flashlight: if on the back wall or around the fan you can see a “coat” of ice more than 5 mm thick, this is the reason.
• 🌀 Try manually turning the fan blades (for example, with a pencil). If they do not rotate, it means there is ice or the motor is broken.

In most cases, the problem is solved complete defrosting of the refrigerator for 12–24 hours. But if an ice crust forms again after 1–2 weeks, it means the defrost heater (heating element) or defrost sensor (defroster) is faulty. These parts require replacement.

2. The temperature sensor of the refrigerator compartment is faulty

In refrigerators with electronic control (for example, Samsung RL-34, LG GA-B489), the sensor responsible for cooling is the thermistor sensor that transmits temperature data to the control board. If it fails, the module “thinks” that the chamber is already cold enough and does not turn on the compressor to cool the main compartment. At the same time, the freezer continues to work, since it has its own separate sensor.

Signs of a thermistor malfunction:

• 📉 The temperature in the refrigerator compartment rises to +15...+20°C, but in the freezer it remains -18°C.
• 🔄 The compressor turns on rarely or operates in very short cycles (5–10 minutes).
• 🚨 An error may appear on the display (for example, E1, FF or rH y Samsung).

You can check the sensor with a multimeter: at room temperature (~20°C) its resistance should be within 5–7 kOhm. If the readings are very different (for example, 0 or infinity), the thermistor is faulty and requires replacement. In refrigerators Atlant and Indesit sensors often “glitch” due to oxidation of the contacts - sometimes it is enough to clean the terminals.

How to find a temperature sensor in a refrigerator?

Usually it is located inside the refrigerator compartment, behind a plastic panel on the back wall. In some models (for example, Bosch KGE39AW25R) the sensor is hidden under the top shelf. To get to it, remove the protective casing by unlatching the latches.

3. Freon leak or capillary tube clogged

If the refrigerator stopped freezing suddenlyand the compressor runs without stopping (or, conversely, turns on rarely), possible refrigerant leak (freon) or a blockage in the circulation system. In this case, the freezer can still keep cold due to freon residues, and the refrigerator compartment is no longer cooled.

How to recognize leak:

• 🔧 The compressor is hot, but there is no cold.
• ❄️ The condenser (grid on the back wall) is barely warm or cold.
• 💧 There are puddles of oil under the refrigerator (freon leaves along with the oil from compressor).

The most common cause of leakage is corrosion of pipes (especially in soldering areas) or mechanical damage (for example, when moving the refrigerator). Clogging of the capillary tube usually occurs due to moisture entering the system or oil decomposition. This problem cannot be fixed on your own - professional equipment for vacuuming and filling is required. freon.

4. refrigerators with one compressor)

In two-chamber refrigerators with one compressor (for example, Indesit BIAA 13, Biryusa 140) it is responsible for the distribution of cold between the chambers. It, at the command of the control board, redirects the freon flow either to the freezer or to the refrigerator compartment. If the valve. its winding jams or burns out, the cold goes only to the freezer, and the main compartment remains warm. solenoid valve. At the command of the control board, it redirects the flow of freon either to the freezer or to the refrigerator. If the valve jams or its winding burns out, the cold goes only to the freezer, and the main compartment remains warm.

Symptoms of valve malfunction:

• 🔀 The refrigerator “freezes” in one mode: either only freezes, or only cools.
• 🔊 When switching modes, a click is heard, but the temperature does not change.
• 🚨 An error may appear on the display F2 or E4 ( different brands).

You can check the valve by applying 220 V voltage to it (through a socket with a plug). A working valve should click and switch. If there is no reaction, the part must be replaced. In some cases it helps tapping with a hammer through a wooden block (if the valve is jammed due to rust), but this is a temporary solution.

5. Malfunction of the control board

The "brain" of the refrigerator - electronic control board - may fail due to voltage surges, moisture or manufacturing defects. If the board is “buggy”, it may incorrectly distribute signals to the compressor, fan or valve, which is why. the refrigerator compartment stops cooling, but the freezer works.

Signs of problems with the board:

• 🤖 The refrigerator behaves chaotically: it either freezes or defrosts for no reason.
• 🔄 Errors flash on the display that do not correspond to real malfunctions (for example, E5 when the sensor is working).
• 🔌 After disconnecting/plugging from the outlet, the problem temporarily disappears.

Independent repair of the board is possible only if you have soldering skills and electronic diagnostics most often fail: compressor relay (can be replaced separately), capacitors (swollen - a sign of malfunction), triacs (control loads).

If you are not a specialist, it is better to contact the service - errors when repairing the board can lead to a short circuit.

6. Problems with the door seal

If rubber seal the door of the refrigeration chamber has lost elasticity or become dirty, warm air constantly enters the chamber. The compressor tries to compensate for this, but there is not enough cold - all the power goes to the freezer. This is especially true for refrigerators with one compressorwhere priority is given to the freezer compartment.

How to check the seal:

• 📏 Insert a piece of paper between the door and the body. If it falls out or is easily pulled out, the seal is not airtight.
• 🔦 Shine a flashlight inside the closed refrigerator. If light is visible, there are gaps.
• 🧼 Pay attention to dirt: grease, crumbs or mold on the rubber worsen the fit.

You can solve the problem: cleaning the seal (with a soap solution and a brush), adjusting the door (if it sagged), replacing rubber (if it is cracked).

It will help with a temporary solution gluing foam tape to problem areas.

7. Incorrect settings or operating modes

Sometimes the refrigerator does not freeze not because of a breakdown, but because incorrect settings. For example:

• ❄️ The mode is turned on Super Freeze (intensive freezing) - all the power goes into freezer.
• 🌡️ The temperature in the refrigerator compartment is set to +8...+10°C (sometimes it gets lost after a power outage).
• 🔄 In models with two compressors (Liebherr CN 4015) the refrigerator compartment compressor may have turned off.

How to fix:

1. Check the temperature settings (optimally: +4...+5°C for the refrigerator, -18°C for the freezer).
2. Disable the modes Super Cool or Vacationif they are active.
3. In refrigerators with two compressors, make sure that both motors are working (listen or touch them - they should be warm).

If the settings go wrong on their own, the control board firmware may fail. In this case, it will help resetting to factory settings (instructions are in the user manual) or flashing the firmware in the service.

How to reset the refrigerator Samsung?

Press and hold the buttons Freezer + Fridge 10 seconds. The display will show rH —release the buttons. The refrigerator will reboot.

Comparison of causes and solutions

⚠️ Attention: If your refrigerator is under warranty, do not disassemble it yourself! Opening seals or repairs without a certified technician will void the warranty. Contact the brand's authorized service center.

⚠️ Attention: Prices for repairs and spare parts may vary depending on the region, refrigerator model and exchange rate. Check current prices at local service centers.

FAQ: Frequently asked questions

Can the refrigerator not freeze due to a power surge?

Yes, especially if there are frequent fluctuations in your network. A power surge can damage control board, compressor relay or temperature sensors. To protect equipment, use voltage stabilizer or network filter.

If after the jump the refrigerator stops freezing, try unplugging it for 10–15 minutes and then turning it on again. Sometimes this helps to reset board errors.

Why in a refrigerator Atlant the freezer works, but the refrigerator compartment does not?

In models Atlant with one compressor there is a common problem - clogged capillary tube or freon leak in the refrigeration chamber circuit. Also check:

• 🔌 Is the fan working (in models with No Frost).
• 🌡️ Is the thermostat working (in mechanical models).
• 🚪 Tightness of the seal.

If the refrigerator is older than 7 years, there is a high probability compressor wear it may not cope with the load on both chambers.

What to do if refrigerator Samsung shows an error E1 and does not freeze?

Error E1 in refrigerators Samsung means a problem with refrigerator compartment temperature sensor. Try:

1. Disconnect the refrigerator from the mains for 5 minutes, then turn it on again.
2. Check if the fan is frozen (defrost if necessary).
3. Reset settings (see instructions above).

If the error remains, the sensor needs to be replaced.

Is it possible to use a refrigerator if it does not freeze, but the freezer works?

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

• 🧊 Store perishable foods (meat, milk, fish) only in the freezer.
• 🥛 Do not leave open liquids (milk, juices) in the refrigerator compartment - they will quickly turn sour.
• 🚫 Do not overload the freezer - this can lead to overheating compressor.

Long-term operation in this mode will lead to compressor overload and its failure.

How often should you defrost a refrigerator with No Frost to avoid problems?

Despite the name (No Frost — “without frost”), such refrigerators also need to be defrosted, but less often - 1 time every 6-12 monthsThis helps:

• 🧊 Delete ice on the fan and evaporator.
• 🧼 Clean the drainage hole from mold.
• 🔧 Check the operation of the defrost heating element.

If you notice that the refrigerator has become worse in freezing, defrost it for 24 hours —this often solves the problem without repair.