Situation when freezer compartment continues to properly freeze food, but the main compartment is warm, which for refrigerator owners Beko is one of the most alarming. This is a classic symptom indicating that the cooling system is not working properly and the cold stops flowing to the upper section. Unlike a complete failure of the compressor, this scenario often confuses users, since the equipment seems to work, but only half performs its function.
Refrigerators Beko, like many modern models, are often equipped with a system No Frost or combined cooling, where the cold air is pumped from the freezer into the refrigerator compartment through special channels. If this process is disrupted, the products in the upper compartment begin to deteriorate, and condensation or, conversely, an ice crust may appear on the walls. Understanding the physics of the process helps to quickly identify a malfunction, be it a banal defrost or a serious refrigerant leak. In this article we will analyze in detail all possible causes of temperature imbalance. We will consider both simple actions that the user can perform independently in 15 minutes, and complex technical faults that require the intervention of a specialist. It is important not to ignore the problem, since long-term operation in this mode can lead to failure of an expensive compressor refrigerant leak.
In this article we will analyze in detail all the possible causes of temperature imbalance. We will consider both simple actions that the user can perform independently in 15 minutes, and complex technical faults that require the intervention of a specialist. It is important not to ignore the problem, since prolonged operation in this mode can lead to failure of an expensive compressor.
The principle of operation of the cooling and air circulation system
To understand the essence of the breakdown, you need to briefly refresh your memory on the principle of operation of the refrigeration circuit. In models with No Frost cold is generated exclusively in the freezer compartment. A special fan drives cooled air through the air ducts into the refrigerator compartment. If the freezer freezes, it means that there is refrigerant (freon) in the system, and the compressor compresses it, creating cold.
The problem arises at the stage of distribution of this cold. Air should circulate freely between the chambers. If circulation is disrupted, heat is not removed from the upper compartment, and the temperature there rises. In models with drip system (where the back wall of the refrigerator is cooled directly, and the freezer has its own evaporator), the situation is different: the lack of freon is most often to blame, which is only enough for a small volume of the freezer, but not for a large refrigerator circuit.
The key element here is thermostat or electronic control modulethat reads the temperature. If the sensor in the refrigerator compartment “thinks” it is cold there (due to a malfunction), it does not command cooling, although in fact it is warm there. The difference in designs Beko dictates different diagnostic methods.
Problems with air circulation: Fan and blockages
One of the most common reasons why there is no cold in the refrigerator is the blowing fan stops. This unit is responsible for distilling air from the freezer to the upper compartment. If it stands, the cold remains below, and room temperature reigns above. You can determine this by ear: with the freezer door open (and the door sensor clamped, if it is mechanical), you should hear the characteristic noise of the fan. Beko there is no cold, the blowing fan stops. This unit is responsible for distilling air from the freezer to the upper compartment. If it stands, the cold remains below, and room temperature reigns above. You can determine this by ear: with the freezer door open (and the door sensor clamped, if it is mechanical), you should hear the characteristic noise of the fan.
The second reason in this category is a mechanical obstacle. Products packaged in large bags may block air duct outlets. Also, freezing of channels often occurs due to a loosely closed door or a malfunction of the defrost heater. Ice blocks the passage, and air simply cannot get into the refrigerator compartment.
- 🔇 Motor malfunction: The fan could simply burn out or jam due to wear of the bearings, requiring replacement.
- 🧊 Ice plug: A layer of ice in the air supply channel completely blocks the circulation, creating a "thermal" effect vacuum."
- 🚪 Deformation of the seal: If the door does not fit, warm, moist air enters the chamber, which instantly turns into ice and clogs the system.
⚠️ Attention: If you find that the fan does not spin, do not try to lubricate it with oil or disassemble without disconnecting from the network. This may cause a short circuit. Check first to see if ice is interfering with it.
Lack of refrigerant (Freon) and leaks
If your refrigerator Beko has been operating for more than 7-10 years, there is a high probability of natural freon leakage through microcracks in sealed circuits or soldering areas. The symptoms are classic: the freezer (which is smaller in volume and located closer to the refrigerant outlet from the compressor) still has time to freeze ice, and the refrigerant reaches the refrigeration compartment already warm or its pressure is not enough for effective heat exchange.
In such cases, the compressor can work almost non-stop, trying to gain temperature, which leads to its strong heating. A “snow coat” may appear on the back wall inside the refrigerator only in one corner, or, conversely, the entire inside will be warm when the motor is running. This is a critical situation that requires searching for a leak.
It is almost impossible to independently find a leak without a leak detector. Freon often escapes through foamed evaporator, which is located inside the housing. In models Beko this is a common problem, since the tubes are built into the walls. Repair in this case is complex and expensive, often requiring the installation of an external evaporator (“crying” on the rear wall).
Faults of sensors and defrost systems
Modern refrigerators Beko are stuffed with electronics. Thermistors are responsible for the evaporator defrosting process and temperature control. If the defrost sensor “lies” and shows that the evaporator is cold, although it is covered with ice, the system will not turn on the heater. As a result, the evaporator becomes overgrown with ice, the fan stops moving air, and cold stops flowing into the chamber. sensors (thermistors). If the defrost sensor “lies” and shows that the evaporator is cold, although it is covered with ice, the system will not turn on the heater. As a result, the evaporator becomes overgrown with ice, the fan stops moving air, and the cold stops flowing into the chamber.
It may also fail itself Defrost heating element. If it burns out, the ice does not melt, the channels become clogged, and we return to the circulation problem. The electronic control module may fail and not supply voltage to the necessary components. In such cases, resetting the error or flashing it often helps, but more often the burnt element needs to be replaced.
Diagnostics of sensors is carried out with a multimeter by measuring their resistance at different temperatures. If the resistance is infinite or zero, the sensor is faulty. In refrigerators Beko sensors located on the evaporator in the freezer often fail.
How to check the sensor with a multimeter?
To check, remove the sensor and place it in a container with water at room temperature. Measure the resistance. Then place it in boiling water (carefully!) or on a heating object. The resistance must change. If it stands still, the part is dead.
Mechanical blockage of the capillary tube
Another technical reason why the freezer freezes but the refrigerator does not is clogging of the capillary tube. Not only freon circulates in the system, but also oil, and oxidation products or moisture may also be present. Over time, a plug forms in a narrow place in the capillary, preventing the flow of refrigerant.
Signs of a blockage are similar to a leak: the compressor is working, the condenser (grid at the back) may be only partially hot or be barely warm, and there is no cold in the chambers or it is weak. Sometimes you can hear gurgling or hissing that was not there before. This is the sound of freon passing through a narrow hole.
Removing blockages requires professional equipment. The technician must press the plug with nitrogen under high pressure or, in the worst case, resolder the capillary tube. You cannot “blow out” the system with a compressor yourself - you can damage the windings or valves.
Diagnostics and table of symptoms
To make it easier for you to navigate the symptoms before calling a technician, we have compiled a summary table. It will help you understand how serious the breakdown is and whether you can solve the problem yourself.
| Symptom | Probable cause | Difficulty of repair | User actions |
|---|---|---|---|
| Buzzes, but doesn’t cold | Freon leak / Clogged | High (needs a technician) | Turn off, call a technician |
| Warm, fan is silent | Fan burned out / Ice | Average | Thaw for 24 hours, check |
| Sometimes it gets cold, sometimes it doesn't | Temperature sensor | Average | Replacing the sensor |
| Ice only at the back wall | Defrosting fault | Medium/High | Checking the heating element and timer |
| Compressor is hot, clicking | Start relay / Compressor | Medium/High | Replacing relay or motor |
☑️ Primary checklist diagnostics
When you need to call a technician
There is a limit beyond which independent repairs become dangerous or economically unfeasible. If after a complete 24-hour defrosting the problem does not disappear, and you are convinced that the fan is working and there are no blockages with food, then most likely the problem is in the hardware.
Filling with freon, soldering pipes, replacing a compressor or filter-drier require a license, special equipment and skills. Trying to do this yourself often leads to complete breakdown of the unit. In addition, working with refrigerants requires compliance with safety precautions.
⚠️ Attention: If you smell burning or see sparking in the compressor area, immediately unplug the refrigerator! Further operation may result in a fire.
The cost of repairs often depends on the model Beko and the availability of spare parts. In some cases, if the refrigerator is more than 10-12 years old and the compressor needs to be replaced with refills, it is cheaper to consider purchasing new equipment, since the life of other components (seals, plastic, wiring) may also be running out.
Frequently asked questions (FAQ)
Can a refrigerator work without freon?
Technically, the compressor will work, but there will be no cold at all. If the freezer freezes, it means that there is freon in the system, but it is not enough for a full cycle or the circulation is disrupted.
How long does it take to defrost Beko to check?
The minimum time for complete defrosting and thawing of ice in hidden channels is 24 hours. A shorter defrosting may not produce results, since the ice plug inside the housing melts slowly.
Why, after defrosting, did the refrigerator stop cooling again after a week?
This is a sure sign of a malfunction of the defrosting system (the heating element, timer or sensor has burned out). Ice accumulated again and blocked the channels. Diagnosis and replacement of the faulty element is required.
Is it dangerous to use a refrigerator if it does not freeze much?
Yes, it is dangerous for your health. Products in the “warm zone” (from +5 to +15 degrees) are an ideal environment for the growth of bacteria, although visually the product may seem normal.