The situation when the refrigerator Beko continues to hum, the light in the chamber comes on, but the food begins to deteriorate due to the lack of cold, is classic and extremely unpleasant for any owner. At this moment, it is important not to panic, but to carry out an initial diagnosis in order to understand the scale of the problem: is it hidden in a simple setup or does it require calling a technician to replace the nodes. Users often confuse a complete lack of cooling with insufficient operating power of the unit, which requires fundamentally different approaches to the solution.
Modern models Veko refrigerators equipped with complex electronics and systems No Frost, which makes them vulnerable to voltage surges and clogged drainage channels. If you notice that the equipment turns on, the compressor starts, but the temperature inside the chambers does not drop below room temperature, this is a signal of a violation of the refrigerant circulation cycle or a malfunction in motor control. Ignoring the first symptoms can lead to damage to a large number of products and expensive repairs.
In this article we will analyze in detail all the possible reasons why your Beko refrigerator stopped freezing, ranging from banal operating errors to serious mechanical breakdowns. You will learn how to check the thermostat yourself, defrost the unit if the timer is stuck and understand exactly when professional intervention with a vacuum pump and freon is needed.
Primary diagnostics and checking settings
Before looking for complex technical faults, it is necessary to exclude the human factor and simple errors. Often the reason that the refrigerator does not freezelies in accidentally changed settings or incorrect installation of the case. Carefully inspect the control panel: the “Vacation” or “Super Cool” mode may have been activated, which changes the algorithm of the compressor operation, or the temperature regulator is accidentally moved to the minimum cooling position.
Check the tightness of the door. If the rubber seal is dirty, damaged, or simply does not hold the magnetic tape, cold air will evaporate, and the compressor, operating in constant mode, will not be able to compensate for heat inflows. To check, use a simple sheet of paper: clamp it with the door around the perimeter - it should be pulled out with noticeable effort.
⚠️ Attention: If the refrigerator was delivered in winter or moved from place to place, it needs time to acclimatize and spread the oil throughout the system before turning it on for the first time.
You should also make sure that the equipment is installed level. If Beko is skewed, the door may not close completely automatically, which will lead to constant injection of warm air. Use a spirit level to check the horizontal position and, if necessary, tighten the adjustable legs.
Problems with the No Frost defrosting system
One of the most common reasons why a refrigerator Beko No Frost hums but does not cool is a failure in the evaporator automatic defrost system. Unlike old models with a weeping wall, here moisture is removed by a fan, and if this cycle is disrupted, a “coat” of ice grows on the radiator, which blocks air circulation.
The key elements of this system are a heating element (heater), a defrost sensor and a timer (or electronic control module). If any of these components fail, the ice does not melt, the channels become clogged, and cold air cannot physically enter the main chamber, although the compressor continues to wear out.
Diagnosis of this problem often requires partial disassembly of the rear wall of the freezer. A visual inspection will show whether there is ice freezing on the evaporator itself. If you see a massive layer of snow where there should be a clean metal grill, it means the defrost system is not functioning correctly.
☑️ Diagnostics of the No Frost system
It is important to understand that independently replacing a heating element or sensor requires skills in working with a multimeter and knowledge of electrical circuits. Errors during assembly can lead to a short circuit or re-freezing after a short period of time.
Malfunctions of the thermostat and temperature sensors
The thermostat (thermostat) is the “brain” that commands the compressor to turn on or off depending on the temperature inside the chamber. If this device faulty, it may constantly “think” that it is too cold in the refrigerator and not give a signal to start the motor, even if the temperature inside is already room temperature.
Modern models Beko instead of mechanical thermostats, electronic sensors are often used (NTC thermistors). Their resistance changes depending on temperature, and the control module reads these readings. If the sensor “lies” or has an open circuit, the refrigerator goes into emergency mode or simply stops cooling.
| Sensor type | Location | Failure symptom | Check method |
|---|---|---|---|
| Air sensor | Upper part of the refrigerator compartment | The compressor does not turn on | Ringing with a multimeter |
| Sensor evaporator | Behind the rear wall of the freezer | Defrost cycle failure | Resistance measurement |
| Defrost sensor | Ice build-up | Test for a short circuit |
Replacing the thermostat in mechanical models is usually simple: you need to remove the regulator handle, unscrew the nut and remove the bellows tube. However, electronic systems often require access to the control board, which makes repairs more difficult and requiring expertise.
How to check a thermostat without instruments?
Immerse the thermostat sensing tube in a glass of ice water for 2-3 minutes. If there is no click and the contacts are open (or not closed, depending on the type), the device is faulty.
Freon leakage and problems with the compressor
The most serious and expensive problem is a violation of the tightness of the circuit and a leak of refrigerant (freon). If gas is gone from the system, the compressor simply has nothing to pump: it hums, trying to create pressure, but there is no cold. Often this is accompanied by a hot condenser (grid at the back) only at the beginning or, conversely, its complete cooling.
Another option is a breakdown of the compressor itself. The motor may hum, but not start due to jamming of the piston group or combustion of the winding. In this case, a characteristic click of the start relay is often heard, after which the motor quiets down, and the attempt to start is repeated after some time.
⚠️ Attention: An attempt to solder a leak yourself or replace a compressor without a vacuum pump and a scale for charging freon is doomed to failure. A licensed technician is required.
It is almost impossible to determine a leak visually, since freon is a colorless and odorless gas. Craftsmen use leak detectors or the nitrogen pressure test method. If you notice oily stains on the floor under the refrigerator or where the tubes exit the housing, this is a sure sign of depressurization.
Clogged capillary tube
Another technical reason why Veko refrigerator does not freeze is a clogged capillary tube. In the freon circulation system, this is the narrowest section where the refrigerant changes from liquid to gaseous. Over time, oil oxidation products or moisture can accumulate there, turning into an ice plug.
When clogged, the compressor works with increased load, trying to push gas, but circulation is impaired. A characteristic sign is that the condenser may only be hot in the first half, while the second half remains cold. Unstable operation may also be observed: cold appears and then disappears.
Fixing this problem requires purging the system with high pressure nitrogen and possibly replacing the filter drier. This is a purely technical procedure that cannot be performed at home without special equipment.
Influence of the external environment and operating mode
Do not forget that external factors influence the operation of the refrigerator. If room temperature too low (below +10°C) or too high (above +35°C), the equipment may not work correctly or go into defense. The compressor simply will not be able to gain the required pressure or will overheat.
Air exchange around the housing is also important. If the refrigerator Beko is built into a niche or stands close to the wall, heat is not removed from the condenser. This leads to overheating of the motor and reduced cooling efficiency. It is necessary to observe the gaps specified in the instructions (usually 5-10 cm on the sides and back).
Frequently opening the door or placing hot products inside also interferes with the operation of the automation. In such cases, the refrigerator may temporarily not be able to cope with the load, but after stabilizing the mode it should return the temperature.
Frequently asked questions (FAQ)
Is it possible to operate a refrigerator if it hums but does not freeze?
Short-term operation is acceptable for diagnostics, but long-term use in this mode will lead to compressor combustion due to overheating. It is better to turn off the device until the reasons are determined.
How long does it take for a Beko refrigerator to reach temperature after defrosting?
Usually it takes from 2 to 6 hours to stabilize the temperature. If after this time the cold does not appear, then there is a technical malfunction.
Why did the refrigerator turn on after defrosting, but does not freeze?
You may have damaged the system during defrosting (pierced the evaporator), or an electronics failure occurred. Also check whether the door is tightly closed and whether the compressor relay is stuck.
Is it worth replacing the compressor if the old one is burned out?
The decision depends on the age of the refrigerator. If the equipment is more than 7-10 years old, replacing the compressor may not be economically feasible, since the cost of work and spare parts is high. In new models, repairs are justified.