The situation when a Beko refrigerator starts making noise unusual sounds cause natural concern for any owner. Constant hum not only irritates the ear, but can also signal serious internal problems that require immediate attention. Modern household appliances from a Turkish manufacturer are famous for their reliability, but even the highest quality units are not immune from wear and tear or manufacturing defects.
Sometimes extraneous noise occurs immediately after purchase, and in other cases, the equipment begins to hum after years of impeccable service. Beko refrigerators can make various sounds: from the quiet bubbling of refrigerant to the loud hum of the compressor. Understanding the nature of these sounds is the first step to successful repair or adjustment of equipment.
In this article we will analyze in detail the main reasons why your unit hums and offer proven diagnostic methods. You will learn to distinguish between normal operating noises and signs of a breakdown, which will help you avoid unnecessary expenses on calling a technician where you can handle it yourself.
Natural sounds of a working refrigerator
Before sounding the alarm and looking for a breakdown, you need to make sure that the sound produced is really an anomaly. Many users confuse normal operation refrigerant with signs of a malfunction. Freon circulates inside the system, which, when transitioning from liquid to gaseous state and back, emits a characteristic gurgling, hissing or light rumbling.
It is also worth considering the operating features of modern systems No Frost. In such models, the fan periodically turns on to distribute cold air evenly, which creates additional background noise. If the humming intensifies when the compressor starts, but quickly subsides or turns into a steady hum, this is most likely a normal situation.
⚠️ Attention: If you hear a sharp metallic knock or whistle, reminiscent of steam escaping, this is not normal and requires stopping the appliance immediately.
New Beko models are often equipped with inverter compressors, which are quieter than conventional ones, but can produce a low-frequency hum at certain speeds. It is important to listen to the nature of the sound: a smooth, monotonous hum usually indicates stable operation of the motor.
Installation problems and vibration of the body
One of the most common reasons why a Beko refrigerator hums is incorrect installation. If the unit is not level, a misalignment occurs, which leads to strong vibrations. In this case, the humming is often accompanied by rattling of the door or interior shelves. A slight push is enough to understand whether the equipment is stable.
Check the distance between the back wall of the refrigerator and the wall of the room. A too-tight fit interferes with air circulation and can cause resonance, which increases the sound of the motor. Also pay attention to whether internal elements, such as bottles or dishes, are touching the walls of the chamber.
☑️ Checking the installation
To fix the problem, you need to level the equipment. Adjustment is carried out by twisting the front support legs. Make sure that the refrigerator stands firmly on all four points of support.
Faulty compressor and start relay
If the hum becomes loud, increasing and is accompanied by a difficult start, the problem may lie in the heart of the refrigerator - compressor. This is an electric motor that builds up pressure in the system. Over time, the shaft bearings can wear out, which leads to a metallic hum and vibration.
Another critical element is the start relay. If it fails, the compressor may try to start, hum for a few seconds, then click and shut off. In some cases, the motor runs continuously without turning off, which leads to overheating and increased sound.
⚠️ Attention: Replacing the compressor yourself requires special equipment for vacuuming and charging with freon. Without skills and tools, it is better not to take risks.
Diagnostics of a compressor often requires a professional approach. The technician measures the resistance of the windings and checks the pressure in the system. If the motor is burnt out or jammed, it needs to be completely replaced with an original spare part.
Symptoms of a faulty compressor
The hum turns into a hum, the motor body gets very hot (more than 90 degrees), the refrigerator does not cool, but the motor runs constantly.
Fan noise in the system No Frost
In Beko refrigerators with a system No Frost a fan is responsible for air circulation. If it begins to hum, whistle, or crackle, this usually indicates worn bearings or a foreign object in the blades. Often this sound intensifies when the door is opened, since in some models the fan continues to work.
In winter, the cause of the noise may be ice freezing on the fan blades or on the evaporator. The ice crust creates an imbalance and interferes with free rotation, which causes a characteristic hum and knocking. In this case, complete defrosting of the unit is required.
To replace the fan, you must gain access to the rear wall of the freezer. Before starting work, be sure to unplug the refrigerator. Carefully remove the plastic panel so as not to damage the fragile fasteners.
Sound diagnostic table
To quickly determine the nature of the malfunction, use the table corresponding sounds and probable causes. This will help you more accurately describe the problem to the technician or understand whether you can fix it yourself.
| Sound type | Probable cause | Necessary actions |
|---|---|---|
| Monotonous hum | Normal operation compressor | No action required |
| Gurgling, overflow | Refrigerant circulation | Normal process |
| Rattling | Incorrect installation, touching objects | Align the legs, remove objects |
| Whistling or howling | Fan malfunction | Defrosting or replacing the fan |
| Loud knocking at startup | Wear of the compressor or relay | Call a technician for diagnostics |
Sound analysis allows you to weed out false alarms. For example, if a humming sound appears only during defrosting, this may be due to the operation of the defrost heater or water flowing into the drain pan.
Resonance with furniture and interior items
Sometimes the refrigerator itself works properly, but creates resonance with surrounding objects. Built-in models or units installed in a niche may hum due to close contact with furniture. The vibration is transmitted to the shelves, cabinet walls or countertops, amplifying many times over.
Check whether there is a microwave oven, coffee machine or heavy dishes on top of the refrigerator. Even a slight vibration of the motor can cause glass shelves inside or bottles standing nearby to rattle. Isolating the sound source often solves the problem without repair.
Use anti-vibration pads under the refrigerator feet. They dampen vibrations and prevent sound transmission to the flooring. This is especially true for laminate or tile, which conduct sound well.
When it is necessary to call a specialist
There are situations when self-repair may be dangerous or impractical. If you checked the installation, defrosted the refrigerator, but the hum does not stop, and the temperature in the chambers is no longer maintained at the required level, you need the help of a professional.
A dangerous signal is the smell of burning or the appearance of smoke from the back of the unit. In this case, you must immediately unplug the cord from the outlet and call emergency services. A technician is also needed when there is a freon leak, which is often accompanied by a change in the nature of the compressor operation.
⚠️ Attention: Opening a sealed circuit without a license and equipment is prohibited and violates environmental standards. Do not try to solder the tubes yourself.
A qualified specialist will conduct a full diagnosis of the electrical circuit, check the tightness of the system and, if necessary, replace failed components. This guarantees the maintenance of the warranty and safe operation.
Why does the Beko refrigerator hum after defrosting?
If a strong hum appears after defrosting, it is possible that water has got on the electrical contacts or an ice plug has formed in the drainage system. Let the unit stand turned off for several hours. If the sound does not disappear, check whether the drainage tray is frozen.
Is it normal for a new refrigerator to hum loudly?
A new unit may operate louder in the first hours of operation until the compressor parts wear in. However, a strong hum, vibration or knocking is not the norm even for new equipment. Check the shipping bolts (if they were on the compressor) and the correct installation.
Can an empty refrigerator hum?
Yes, an empty refrigerator can hum even stronger, since the products act as a heat accumulator and sound insulation. The lack of mass inside allows sound waves to travel more freely throughout the chamber. Filling the chambers helps reduce the noise level.