The sudden appearance of loud rattling, humming or gurgling in the operation of the refrigerator Atlant always causes alarm, because this unit works around the clock and must function as silently as possible. The owner immediately begins to think through possible breakdown scenarios in his head, imagining expensive repairs or a complete replacement of the equipment. However, you should not rush to conclusions, since the nature of the sounds can be completely different - from harmless physical processes to serious mechanical malfunctions.
In this article we will analyze in detail why the refrigerator rumbles, how to distinguish normal operating noise from alarm signals, and in what cases you can deal with the problem yourself. Understanding the structure of your unit will help save time and money, as well as extend the life of the equipment.
First, it is important to calm down and carefully listen to the nature of the sound. Extraneous noise it can come from the motor, from the refrigerant circulation system, or even from improperly installed furniture nearby. Accurate diagnosis begins with a visual inspection and analysis of the frequency of sounds.
Natural sounds of refrigeration equipment
Before sounding the alarm and looking for a repairman, you need to make sure that the sounds produced are not part of the normal operating cycle. Modern models, such as Atlant XM 4008 or older series, use refrigerants that, when moving through the tubes, can produce a characteristic gurgling or pouring sound. This is absolutely normal and indicates that freon circulates through the system, cooling the chambers.
The so-called “thermal expansion” is also common. The plastic of the inner walls and metal elements compress and expand when the temperature changes, producing a crackling sound. This usually happens when the compressor starts or immediately after it stops, when the temperature difference is greatest.
⚠️ Attention: If the rattling is accompanied by strong vibration of the case, which is transmitted to the floor, check the stability of the legs of the refrigerator. Perhaps it is simply uneven.
There are a number of sounds that do not require intervention:
- 🔊 A short hum when the motor-compressor starts.
- 💧 Quiet gurgling or hissing in the evaporator tubes.
- 📉 The thermostat clicks when the set temperature is reached.
- 💨 The noise of the fan in models with the No Frost system.
It is important to distinguish between a monotonous hum and intermittent rumble. If the sound changes depending on the phase of operation, most likely the equipment is working properly. Normal noise level for household refrigerators it is about 40 dB, which is comparable to a quiet conversation.
Installation problems and external factors
Often the reason The fact that the refrigerator Atlant hums loudly or makes vibration sounds lies not inside the mechanism, but in incorrect installation. Vibration from a running compressor is transmitted to the housing, and then to the floor and walls, increasing if there is resonance. This is the most common and easily removable reason.
The first thing to do is check the horizontalness of the installation. If the refrigerator is placed on an uneven floor, the skewed body creates excess tension on the frame and tubes. Use a building level to check. Height adjustment is carried out using the front support legs, which can be twisted or unscrewed.
The second important point is the distance to walls and furniture. For normal air circulation and absence of resonance, the refrigerator needs space. If it is moved close to a wall or cabinet, vibration will be transmitted to them, causing rattling.
Check the following points:
- 📏 Is the distance to the back wall maintained (at least 5-10 cm).
- 🪑 Are the sides of the refrigerator touching the kitchen cabinets or walls.
- 🔩Are the shipping bolts securely tightened (if they have not been removed).
If the refrigerator is on linoleum or laminate, vibration can spread throughout the room. In this case, special anti-vibration pads made of thick rubber can be placed under the support legs.
Malfunctions of the compressor and start relay
If external factors are excluded, and the refrigerator Atlant continues to rattle, the problem may lie in the “heart” of the unit - the compressor. It is this node that creates the main pressure in the system. Over time, parts wear out, bearings lose lubrication, which leads to metallic knocking or rumble.
Particular attention should be paid to the starting relay. This device is responsible for starting the engine. If the relay contacts are oxidized or burned, startup may occur with a delay and a characteristic crackling or clicking sound. In some cases, the relay may rattle during operation due to loose fastening.
⚠️ Attention: Be careful when diagnosing the compressor. Do not touch the metal parts of the motor during operation, as they can become very hot, and also keep your fingers away from moving parts.
Symptoms of problems with the compressor:
- 🔨 Loud metallic knocking sound when starting.
- ⚡ Frequent attempts to start followed by a clicking sound and shutdown.
- 🌡️ Strong heating of the compressor housing.
- 📉 Unstable temperature in the chambers.
In models with two compressors (separately for the refrigeration and freezer compartments), the sound can come from only one of them. Place your hand on the motor housing (carefully!) to understand which one vibrates more strongly. Replacing a compressor is a complex process that requires special equipment for refilling with freon, so it is better to entrust it to professionals.
Is it possible to replace a compressor yourself?
Theoretically, yes, if you have the skills to work with a blowtorch, a vacuum pump and a scale for charging refrigerant. However, without a license to work with freon and special tools, it is almost impossible to properly seal and charge the system.
Vibration and rattling of internal elements
Sometimes the source of noise is located inside the refrigerator or freezer. During use, plastic shelves, drawers and trays may become loose. When the compressor operates, resonance occurs and loose parts begin to rattle, creating an annoying sound similar to rattling.
In models with the No Frost system, special attention should be paid to the fan. The fan blades may become iced up or become stuck to a foreign object (such as a piece of packaging). In this case, the fan begins to hum and rumble, touching the ice or the walls of the channel.
To eliminate the noise, follow these steps:
- 🧊 Defrost the refrigerator (if there is ice on the fan).
- 📦 Remove all shelves and drawers to check if it disappears sound.
- 🔍 Inspect the back wall of the freezer for ice.
If after defrosting the fan noise disappeared, but after a while it appeared again, the defrost sensor or evaporator heating element may be faulty. The ice builds up faster than it can melt, and the fan blades begin to touch the ice coat.
☑️ Diagnostics of internal noise
Also check the fastenings of the lighting lamp and plastic panels inside the camera. Sometimes it is enough to simply insert the panel more tightly or place a piece of foam under the plastic holder to eliminate rattling.
Comparison table: Normal or broken?
To make it easier for you to navigate the symptoms, we have prepared a summary table. It will help determine whether the sound is a sign of a malfunction or a normal variant for your Atlanta.
| Sound type | Probable cause | Normal or repair? |
|---|---|---|
| Gurgling, overflow | Movement of freon through the pipes | Normal |
| Crackling of plastic | Thermal expansion of materials | Normal |
| Loud hum + vibration | Incorrect installation, touching walls | Adjustment |
| Metal knocking | Wear of the compressor, valves | Repair |
| Whistling or howling | Problems with the fan or winding | Repair |
As can be seen from the table, many sounds do not carry a threat. However, if you hear metallic knocking accompanied by a lack of coldthis almost always indicates a serious compressor failure or loss of freon.
Do not ignore changes in the background sound. If a previously quiet refrigerator suddenly begins to make noise, this is the first signal that changes have occurred in the system. Early diagnosis allows you to eliminate the problem at a stage when repairs are still inexpensive.
When you need to call a technician
There are a number of situations when self-repair not only will not help, but can also aggravate the situation. If you have checked the installation, removed unnecessary items and made sure that the shelves are level, and the noise has not stopped, there is probably a technical problem.
A call to a specialist is required if:
- 🛑 The compressor hums, but does not start (you can only hear a click).
- 🔥 The motor-compressor heats up to very high temperatures.
- 💨 You can smell burning or scorched wiring coming from the refrigerator.
- ❄️ Cold has stopped forming in the chambers.
A professional technician will carry out diagnostics using pressure gauges and testers. It will be able to accurately determine the pressure in the system, the integrity of the motor windings and the condition of the starting equipment. Complex repairs requires sealing the system, which is impossible to do at home.
⚠️ Attention: The characteristics and design of refrigerators may vary depending on the year of manufacture and modifications. Always check the technical documentation of your specific model before starting any work.
Noise prevention and equipment care
To The refrigerator Atlant served for a long time and quietly, it needs to be properly cared for. Regular defrosting (for drip systems) prevents excessive ice buildup that can cause fan noise. Even if you have No Frost, preventative defrosting once a year will not hurt.
Keep the condenser (grids at the back) clean. Dust and animal hair clog the cells, the motor has to work harder, which increases the load and noise level. It is better to clean with a vacuum cleaner or a soft brush.
Basic rules for silent operation:
- 🧹 Regularly clean the rear grille of dust.
- 🚫 Do not place hot foods inside the chamber.
- 🔊 Don't slam the doors too hard.
Following these simple recommendations will help preserve the life of your equipment and comfort in your home. Remember that it is impossible to achieve perfect silence from a running compressor, but the sound should be smooth and unobtrusive.
Why did the Atlant refrigerator start to rattle after defrosting?
Most often this is due to the fact that the ice, which previously absorbed the vibration of the tubes or fan, has melted, and now the parts are in contact with body. It is also possible that during defrosting you touched the pipes or the fan. Allow the refrigerator to dry completely and run for several hours. If the noise does not stop, check the fan mounting.
Is it possible to lubricate the compressor if it is noisy?
No, modern compressors are sealed and do not require lubrication during operation. An attempt to drill the housing or disassemble it will lead to freon leakage and failure of the unit. If the compressor is noisy due to worn bearings, it needs to be replaced.
Does the new refrigerator make a louder noise than the old one?
Not necessarily. Newer models often feature inverter compressors, which are quieter than older ones. However, if the new unit is installed incorrectly or has a manufacturing defect, it may become noisy. Allow the appliance to “settle” after delivery for at least 4-6 hours before turning it on.
What to do if it rumbles only at night?
At night, the overall noise level in the apartment decreases, and the operation of the refrigerator becomes more noticeable. If the sound is monotonous and does not increase, this is normal. If knocking noises appear at night, check whether the refrigerator is close to the wall, the sound from which resonates more strongly at night.