The appearance of extraneous sounds in the operation of household appliances always causes concern, especially when it comes to Atlant refrigeratorswhich are famous for their reliability. Owners often notice that the unit begins to hum louder than usual, making clicking or gurgling sounds, which disrupts the comfort in the apartment. Understanding the nature of these noises is the first step to solving the problem, be it a simple adjustment of the legs or a complex repair.
In this article we will analyze in detail the mechanics of the operation of various components of the Belarusian manufacturer and explain which sounds are considered normal and which ones signal about malfunctions. You will learn how to carry out initial diagnostics yourself and in what cases you need to call a specialist. Ignoring early symptoms can lead to failure of expensive components, so it is important to be able to distinguish the nature of the sounds.
Before you panic, it is worth assessing the nature of the equipment’s operation in the first minutes after switching on. Many models emit a short hum when starting compressor, which is a normal situation. However, if noise becomes a constant companion or changes its tone, this requires your attention and, possibly, intervention in the settings or design of the device.
Physics of sound: how the acoustics of a refrigerator work
To understand why Atlant refrigerator it makes noise, you need to understand its internal device. The main source of sound is the compressor-condensing unit, which is a sealed unit containing a motor and a system of tubes. During operation, the pistons compress the refrigerant, creating vibration that is transmitted to the housing and surrounding objects. The intensity of the hum directly depends on the engine power and the quality of its mounting.
In addition, the circulation of freon through the evaporator and condenser pipe system is often accompanied by the sounds of overflowing liquid. This is especially noticeable in models with No Frost, where the air is actively driven by fans. The sound wave can resonate inside the chambers, amplified by shelves and glass partitions, creating the effect of a “large room.”
It is also important to take into account the acoustic properties of the room where the equipment is installed. An empty kitchen with a tiled floor and smooth walls works like a resonator, repeatedly amplifying any, even the quiet sound of a running motor. At the same time, in a room filled with furniture, the same unit may seem almost silent.
Normal operating noise: what is considered acceptable
Not all sounds made by equipment are a sign of breakdown. Modern models Atlant, especially two-compressor ones, operate in a cyclic mode, and their sound background changes depending on the phase of operation. Understanding these processes will help you stop worrying about trifles and focus on real problems.
Normal operating noise includes:
- 🔊 A uniform low-frequency hum of a working compressor, which subsides when it is turned off.
- 💧 A quiet gurgling or murmur that occurs immediately after the engine stops, when the refrigerant flows into a low-pressure zone.
- 🔌 A characteristic click of the thermostat or start relay when the unit is turned on or off.
- 🌬️ Noise of the fan in the systems No Frost, reminiscent of an air flow.
Particular attention should be paid to the sounds that occur when you turn it on for the first time after defrosting or purchasing. During this period, the system enters operating mode, and the sounds of gas circulation may be more intense. If refrigerator makes sounds that are not similar to those described above, it is worth conducting a more thorough check.
Installation problems: vibration and resonance of the case
One of the most common reasons why Atlant refrigerator it begins to make a lot of noise is incorrect installation. Even a perfectly working unit will rattle if it is not level or touches walls and furniture. Vibration from the compressor is transmitted to the floor and walls, causing resonance.
Often owners forget to remove the shipping bolts that secure the compressor suspension springs. Until these bolts are unscrewed, the shock absorption does not work, and all vibration is transferred to the metal casing and body of the device. This not only creates a lot of noise, but can also lead to rapid wear of the components.
Check the following installation parameters:
- 📏 The gap between the back wall of the refrigerator and the wall must be at least 5-7 cm for free air circulation.
- ⚖️ The unit must be positioned strictly horizontally, which is adjustable twisting or unscrewing the front support legs.
- 🤝 The cabinet should not touch kitchen cabinets, countertops or other objects that can transmit vibration.
⚠️ Attention: When leveling the refrigerator, make sure that it is not tilted forward. The doors must close on their own when opened by 30-40 degrees, otherwise the tightness will be broken and the load on the compressor will increase.
☑️ Checking the installation of the refrigerator
Diagnostics of the compressor and start relay
If installation problems are excluded, and the noise remains suspiciously loud or changes character, it is worth listening to the work of the “heart” of the refrigerator - the compressor. Two-compressor Atlant models can create more noise simply due to the presence of two motors operating independently of each other.
Alarm signals are:
- 🔨 Loud metallic knocking or clanging when starting the engine.
- 📉 An intermittent hum when the engine tries to start, clicks and stalls.
- 🔥 Intense heating of the compressor housing combined with unusually loud operation.
Often the cause Clicking and buzzing sounds indicate a failure of the start-up relay. This small element is responsible for starting the engine and protecting it from overloads. If the relay is faulty, the compressor may hum but not start, or operate intermittently, creating a characteristic intermittent noise.
| Sound type | Probable cause | Repair needed |
|---|---|---|
| Uniform hum | Normal engine operation | Not required |
| Loud knocking at start | Wear of piston group or valves | High |
| Clicks without starting | Faulty start relay | Medium |
| Vibration of the case | Problems with installation or fastenings | Low (adjustment) |
⚠️ Attention: If you hear loud knocking noises inside the compressor, this may indicate mechanical failure of internal parts. Operation of such a unit is dangerous and can lead to complete failure of the equipment.
Compressor service life
The average service life of Atlant compressors is 10-15 years. However, with frequent power surges in the network or overheating (due to poor ventilation), this resource can be halved.
Noise in the defrosting and air circulation system
In models with the system No Frost or “Full No Frost”, the source of noise is often the fan. The fan blades can become contaminated with dust, causing imbalance and humming. Also, over time, the lubricant in the fan bearings dries out, and it begins to emit a high-pitched whistle or crackling noise.
Another source of sounds is the defrost system. When ice moves into water or when plastic elements thermally expand, crackling sounds similar to gunshots or clicks may be heard. This is normal for defrost cycles, but if the rattling sound is constant, the plastic may be warped or touching moving parts.
On defrost models, a gurgling noise is often heard. This is the sound of water dripping into the evaporator tray. If the condensate drain tube is clogged or misaligned, water can drip noisily directly onto shelves or food, creating an annoying sound. drip system When defrosting, a gurgling sound is often heard. This is the sound of water dripping into the evaporator tray. If the condensate drain pipe is clogged or misaligned, water may drip noisily onto shelves or food, creating an annoying sound.
Impact loading and camera contents for noise
Sometimes the source of “noise” is the products themselves. Glass bottles, jars or dishes placed close to each other or to the walls of the refrigerator may jingle from the slightest vibration of the shelves. Vibration is transmitted from the compressor through the housing to the shelves, causing items to rattle.
An empty refrigerator can also be noisier than a loaded one. The products in the chambers act as an additional sound insulator, absorbing some of the sound waves. If you have just bought the equipment or have completely defrosted it, the absence of “filler” makes the operation of the unit more noticeable to the ear.
Recommended:
- 🍾 Check that the bottles and cans do not touch each other or the walls of the refrigerator.
- 🥚 Make sure the shelves are tight sit in the grooves and do not rattle.
- 🧊 Defrost the unit if ice freezing on the evaporator interferes with the operation of the fan.
⚠️ Attention: Do not put hot foods in the refrigerator. This forces the compressor to wear out in an increased mode, which increases the noise level and reduces the service life of the equipment.
When it is necessary to call a specialist
There are a number of situations where independent actions can only cause harm. If, after checking the installation and loading, Atlant refrigerator continues to behave suspiciously, professional diagnostics are required. This is especially true in cases when noise is accompanied by a change in temperature.
Urgently contact service if:
- 🆘 The compressor hums continuously, does not turn off for hours, and gets very hot.
- 🌡️ Cold has stopped forming in the chambers or, conversely, the food is freezing.
- ⚡ A smell of burning or melted wiring has appeared along with a change in the sound of operation.
A professional technician will be able to accurately determine whether the problem lies in a freon leak, an electronic malfunction or a mechanical one compressor wear. Repairing complex components requires special tools and knowledge that are not available at home.
Warranty case
If your refrigerator is less than 3 years old and it makes noise due to a factory defect, repairs should be free. Save the receipts and warranty card.
Why does the Atlant refrigerator hum only at night?
At night, the overall noise level in the apartment decreases, and the sounds of operating equipment become more noticeable. In addition, at night the voltage in the electrical network may stabilize or, conversely, jump, which affects the operation of the motor. Also at night, doors open more often, starting cooling cycles.
Is it possible to lubricate a compressor if it starts to make noise?
Self-lubrication of the compressor is impossible, since it is a sealed unit without service holes for oil. Attempting to drill into the housing will result in freon leakage and damage. You can only lubricate external elements, for example, fan bearings.
Is it normal for the refrigerator to gurgle after it is turned off?
Yes, this is absolutely normal. After the compressor stops, the pressure in the system equalizes, and the refrigerant flows from the high-pressure zone to the low-pressure zone, which is accompanied by the sounds of liquid pouring.
How long can a new refrigerator hum?
A new refrigerator may work a little louder in the first few days, while the parts are grinding in and the system reaches a stable mode. If after a week the noise level has not decreased, it is worth checking the installation.