Owners of household appliances are often faced with a situation when the refrigerator Beko begins to make extraneous sounds that have not previously been observed. The sudden appearance of crackling, clicking or buzzing can cause panic, because this signals a possible breakdown of an expensive unit. However, noise does not always indicate a critical malfunction that requires an immediate call to a technician.
Understanding the physics of refrigeration equipment allows you to separate normal operating processes from signs of wear on components. In this article, we will analyze in detail why the Beko refrigerator is crackingand help you determine whether you need urgent help from specialists or whether the problem can be solved yourself.
Modern models, such as Beko CN 327220 X or Beko RCNK 335, are equipped with complex air and refrigerant circulation systems that are not silent in nature. It is important to learn to distinguish the nature of the sound, since the further strategy of actions for servicing equipment depends on this.
Physics of the process: natural sounds of work
Many users first pay attention to the sound background only after purchasing a new model or moving to a quiet apartment. In most cases, crackling and clicking sounds are absolutely normal phenomena associated with the physics of phase transitions refrigerant. When liquid freon passes through the capillary tube and enters the evaporator, it boils, turning into a gas. This process is often accompanied by sounds reminiscent of water pouring, hissing or slight crackling.
It is also worth considering the thermal expansion of materials. The internal plastic casing and metal elements of the evaporator have different expansion coefficients. When there is a sudden change in temperature, for example, immediately after defrosting or turning on the compressor, the plastic contracts or expands, producing a characteristic cracking sound. This is especially noticeable in models with a No Frostsystem, where temperature changes are more intense.
⚠️ Attention: If the crackling noise is heard evenly at certain intervals and coincides with the starting or stopping of the motor, most likely everything is in order with your refrigerator.
It is important to understand that new models may sound different than older units. The use of new types of compressors and refrigerants changes the acoustic picture. If the refrigerator operates in normal mode, cools food and does not make ear-piercing sounds, then a slight crackling sound is simply the “voice” of the operating equipment.
How to distinguish a normal sound from the noise of a breakdown?
A normal sound is usually quiet, periodic and does not interfere with sleep. The sound of a breakdown is often loud, constant, accompanied by vibration of the case or a change in the quality of cooling of the products.
Installation problems and external factors
Before opening the technical compartment or looking for faults inside, it is necessary to exclude external factors. Often the cause of the crackling sound is trivial and lies in improper installation of the unit. If the refrigerator Beko is not level, vibration from the operating compressor is transmitted to the body and resonates, causing rattling and cracking of the panels.
Check the distance between the back wall of the refrigerator and the wall of the room. It should be at least 5-10 centimeters for free air circulation. If the gap is too small, the condenser tubes can vibrate against the wall, creating an unpleasant noise. Also make sure that nothing is installed on the top of the refrigerator: vases, boxes or decorative elements may resonate and rattle.
Particular attention should be paid to the shipping bolts if they were not completely removed after purchase. Although refrigerators have fewer of them than washing machines, some of the compressor retaining elements may have remained inside. Also check whether the internal shelves or bottles are touching each other - vibration can cause them to knock on the walls of the chamber.
☑️ Diagnostics of refrigerator installation
No Frost and ice system malfunctions
Refrigerators Beko with the system No Frost are susceptible to the formation of ice in hidden chambers if the defrosting system does not work correctly. Unlike the drip system, here moisture is removed through a drainage hole. If it becomes clogged with crumbs or ice, the water does not drain and freezes and turns into a block of ice around the evaporator.
When the defrost heater turns on, this ice begins to crack and chip. The sound may be very loud, similar to wood breaking or a loud crash. This occurs due to the fact that the ice mass heats up unevenly and bursts. Over time, ice can reach the fan blades, which will lead to mechanical noise and hum.
Diagnosing this problem often requires partial disassembly of the freezer. If you notice that “snow” or ice has formed on the back wall inside the freezer, and the refrigerator begins to crack, then the problem is in the defrosting system. This requires cleaning the drainage or replacing The defrost heating element.
| Symptom | Probable cause | Sound character |
|---|---|---|
| Ice on the back wall | The drainage is clogged or the heating element is burnt out | Loud crackling, ice crunching |
| Water under the drawers | Water drainage fault | Dripping, intermittent crackling |
| Weak cooling | Air circulation is impaired | Fan noise, ice cracking |
| Frost on food | Seal leakage | Constant background crackling |
Wear of the compressor and start relay
If a cracking noise is heard at the bottom of the refrigerator, where the motor is located, and is accompanied by a hum or attempts to start, which are abruptly interrupted by a click, the problem may be in start relay. This small element is responsible for starting the engine. If it malfunctions, the compressor tries to start, a click is heard, but the motor stalls. After some time, the cycle repeats.
The compressor itself can also become a source of noise when internal mechanisms wear out. If a metallic knocking or grinding noise is heard, this is a bad sign indicating destruction of the engine mount or piston group. In models Beko with inverter compressors, the noise may be caused by a malfunction of the control board, which sends incorrect signals to the motor.
⚠️ Attention: If the compressor runs continuously without turning off, and at the same time gets very hot, and the refrigerator makes a cracking sound, immediately disconnect the equipment from the network to avoid a fire.
Diagnostics of the compressor compartment requires caution. Before inspection, make sure that the unit is disconnected from the power supply. Check the integrity of the tubes leading to the motor. Sometimes vibration causes them to come into contact with each other or with the walls of the case, which generates a loud crackling sound. By carefully bending the tubes, you can eliminate this defect.
Defects in the cooling system fan
In refrigerators with a system No Frost the fan is responsible for circulating cold air. Over time, its bearings wear out, or fibers from defrosted food wrap around the axle. This results in a crackling, humming or whistling noise coming from the freezer.
The sound often gets louder when the door is opened. This is due to the fact that in many models Beko when the door is opened, the fan must stop. If the door button sticking mechanism or the button itself is faulty, the fan continues to run “idle”, making sounds. A cracking sound can also occur if the fan blades touch frozen ice.
To fix the problem, it is often enough to defrost the refrigerator for 24 hours so that the ice in the fan area melts. If the sound returns after turning it on, the fan will need to be replaced. This is not the most difficult procedure, but it does require care when connecting electrical connectors.
When you need to call a specialist
There are a number of situations when self-repair is not only ineffective, but also dangerous. If you have checked all external factors to ensure that the installation is level and free of ice, but the cracking noise continues, a professional diagnosis is likely required. This is especially true when the noise is accompanied by loss of cold.
A specialist will be able to accurately determine whether the problem lies in a leak freon, a clogged capillary system or an electronics malfunction. The use of special equipment, such as leak detectors and pressure gauges, allows you to find microcracks in the circuit that are invisible to the eye.
You should not ignore the smell of burning or burning plastic that accompanies the crackling sound. This is a direct sign of overheating of the electrical contacts or motor windings. In such cases, operation of the equipment should be stopped until the malfunction is eliminated.
Is it possible to repair a refrigerator if it is cracking?
If the crackling noise is quiet and periodic (refrigerant operation), then it is possible. If the sound is loud, metallic, or accompanied by heating of the body, it is better to stop using it.
Why is the new Beko refrigerator cracking?
New equipment can make adaptation sounds: plastic expansion, thermostat adjustment, operation of a new compressor. This usually goes away in 2-3 days.
How often do you need to defrost No Frost?
The No Frost system does not require manual defrosting, but preventative shutdown once a year for washing and checking drainage will extend the service life.
Does the refrigerator crack when freon leaks?
The leak itself does not crack, but the operation of the compressor in the mode of constantly pumping rarefied gas can cause altered, louder sounds of gurgling and crackling.
Where is the start relay located in Beko?
It is mounted on the side or rear of the compressor in a black or gray plastic case, to which electrical cable is suitable.