A refrigerator Indesit is a reliable technique designed to serve for years, but even the most proven units can begin to make uncharacteristic sounds. If you notice that your refrigerator is humming, knocking or making gurgling sounds, this does not always mean it is broken. Often, extraneous noise indicates improper installation or natural processes of the refrigerant inside the system.
However, sudden changes in the acoustic background of the kitchen should not be ignored. Extraneous noise may be the first signal that compressor it is working with overload or the tightness of the circuit is broken. In this article, we will analyze in detail all the possible causes of sound anomalies and help you determine when you can cope on your own, and when you need to call a specialist.
It is important to understand that the nature of the sound often suggests the essence of the problem. The monotonous hum is different from the clink of falling dishes, and the cracking of plastic is not like the vibration of metal tubes. A careful analysis of the situation will help you save time and money on diagnostics.
Natural sounds when the refrigerator is operatingMany owners begin to panic when they hear the first unusual sound, although in fact the equipment may be working properly. Modern models Indesit, especially those equipped with the system No Frost, have a complex operating cycle, which is accompanied by various acoustic effects. Periodic humming or clicking is a normal part of the operation of the unit.
For example, the sound of pouring water or gurgling often indicates movement refrigerant (of freon) through the system pipes. When the compressor turns off, the pressure in the circuit equalizes, which may be accompanied by a characteristic hissing or overflow of liquid. This is the physics of the process, and you don’t need to do anything about it.
How to distinguish a normal sound from a breakdown?
Normal sounds are usually quiet, rhythmic and do not cause discomfort when in the next room. Pathological noises are usually loud, sharp, intermittent, or accompanied by vibration of the housing, which can be felt by hand.
It is also worth considering the thermal expansion of materials. The plastic of the inner tank and metal elements may crack slightly when the temperature changes. If your refrigerator Indesit makes quiet clicks immediately after turning the motor on or off, it is most likely just thermostat or the case material reacts to temperature changes.
Installation problems and vibration of the caseThe most common reason why a refrigerator Indesit makes a lot of noise is incorrect installation. If the unit is not level or touches the walls of furniture, the vibration from the running motor is transmitted to surrounding objects, creating a resonance effect. As a result, a quiet hum turns into an obsessive rumble.
The first thing to do is check the horizontal installation. Use a building level or just rock the refrigerator. It should stand stable on all four legs. Height adjustment is carried out using support screwslocated in the lower front part of the case.
☑️ Checking the installation of the refrigerator
Often the noise occurs due to the fact that the back wall of the refrigerator is moved too close to the wall or the heating radiator heats the capacitor. Also check whether the pipes or the refrigerator body itself are touching nearby furniture, a stove or a sink. Even a light touch can increase vibration significantly.
⚠️ Attention: When moving the refrigerator away, be careful with the tubes at the back. They are thin and easily deformed, which can lead to freon leakage. Do not apply excessive force to the radiator grille.
If the kitchen floor is wooden or has defects, it may also resonate. In such cases, it is recommended to place special anti-vibration pads made of thick rubber under the legs of the refrigerator. This simple action often completely eliminates the rattling problem. Indesit It is recommended to use special anti-vibration pads made of thick rubber. This simple step will often completely eliminate the rattling problem.
Malfunctions of the compressor and start relayThe compressor is the heart of the refrigerator Indesit, and it is it that creates the main noise during operation. If you hear a loud, increasing hum that ends abruptly with a click, after which the engine tries to start again, the problem lies in the starting relay or the engine itself.
Start relay responsible for starting the motor. Over time, the contacts in it oxidize or burn, which leads to unstable operation. The engine hums, trying to gain speed, but the relay opens the circuit, emitting a characteristic metallic click. In such a situation, the compressor cannot enter operating mode.
If the compressor is running, but makes an unusually loud, “metallic” clang or knock, this may indicate wear of the internal parts - the piston group or bearings. In models Indesit with an inverter compressor, the noise should be minimal, so any grinding noise there is an alarming signal.
Diagnostics of a compressor requires certain skills. It is necessary to check the resistance of the windings and the integrity of the starting winding. If you do not have the skills to work with a multimeter and electrical circuits, it is better to entrust this task to a professional, since we are talking about high voltage.
Fan noise in No Frost systemsIn refrigerators Indesit with a system No Frost the fan is responsible for the circulation of cold air. Over time, its bearings may wear out, or an ice crust may form on the blades, resulting in a howling, humming, or crackling noise.
Most often, the problem manifests itself in the freezer compartment. If you hear something cracking or grinding when the door is open (on some models the fan stops when opened, on others it continues to run), it means that the blades are touching ice. This happens if the tightness of the seal is broken or defrosting is rarely carried out.
To eliminate the noise, it is often enough to completely defrost the refrigerator. Leave the unit turned off with the doors open for at least 12-24 hours. This will allow the ice to melt and hopefully make the fan quiet again. If, after defrosting, the noise returns after a few days, it means that the fan bearing requires replacement.
| Type of sound | Probable cause | Localization | Difficulty of repair |
|---|---|---|---|
| Monotonous howl | Fan bearing wear | Freezer compartment | Medium |
| Crackling blades | Ice on the fan | Rear wall of the chamber | Low (defrost) |
| Intermittent hum | Foreign object trapped | Blow zone | Low |
| Case vibration | Fan mount | Technical compartment | Low |
In some cases, the fan may make noise because its mount is loose. The vibration is transmitted to the plastic housing of the evaporator, amplifying the sound. Check the screws securing the blower unit and, if necessary, place pieces of foam rubber for vibration isolation.
Rattling of tubes and internal partsSometimes the source of noise is not mechanisms, but simply poorly secured structural elements. In refrigerators Indesit copper tubes coming from the compressor can vibrate and touch each other or the body. This creates an unpleasant metallic rattle.
To eliminate this malfunction, you need to gain access to the rear of the unit (compressor compartment). Gently, using your hands or with minimal force, try to move the tubes away from each other. It is important not to overdo it, as copper is a soft metal and breaks easily.
Also check the condensate tray located above the compressor. If it is not installed tightly, it will rattle when the motor is running. Place a piece of rubber under it or simply adjust its position. Often it is this element that creates the illusion of serious damage.
Inside the refrigerator compartment, shelves or bottles standing close to the wall can become a source of rattling. Make sure that all glass shelves fit snugly in the guides and that food does not touch the back wall where cooling occurs.
When professional repairs are requiredThere are situations when independent repairs not only will not help, but will also cause harm. If you have eliminated all external causes (vibration, touching furniture, ice), but Indesit refrigerator continues to make noise, the problem may lie deep inside the system.
An alarming signal is a change in the nature of the motor: it starts working without stopping, gets very hot, and the noise becomes shrill. This may indicate a loss of compressor performance or a refrigerant leak causing the motor to idle.
⚠️ Attention: If you smell burning, plastic, or see sparking in the compressor area, immediately unplug the refrigerator. Further operation is a fire hazard.
Also, the help of a specialist is necessary if the compressor needs to be replaced or the system needs to be refilled with freon. These operations require special equipment, evacuation of the system and a license to work with refrigerants. It is impossible to do this efficiently on your own.
You should not delay calling a technician if the noise is accompanied by a lack of cold. Prolonged operation of a faulty unit can lead to spoilage of products and the final failure of expensive components. Early diagnosis is often cheaper than major repairs.
Prevention and care of the Indesit refrigeratorIn order for your refrigerator Indesit to serve for a long time and quietly, it is necessary to regularly carry out preventive measures. Keeping the rear condenser grill clean is the key to efficient heat transfer. Dust and animal hair sticking to the black grille cause the motor to work harder and noisier.
It is recommended to thoroughly clean the back of the refrigerator at least once a year. Use a soft brush or vacuum cleaner to remove dust. Also check the integrity of the rubber seals on the doors: if they allow heat to pass through, the compressor will turn on more often.
Do not overload the shelves with products. Excess weight places additional stress on the structure and can increase vibration. Distribute the products evenly so that the center of gravity does not shift, which is especially important for the stability of the unit.
Is it possible to lubricate the fan?
You can lubricate the fan bearing with oil, but this is a temporary measure. The special lubricant in sealed bearings dries out over time, and the ingress of foreign oil can only remove the noise for a short time, after which a complete replacement of the unit will be required.
Following simple operating rules will help maintain silence in your kitchen. If noise does appear, use this article as a checklist for initial diagnosis. A correctly identified cause is half the success in solving the problem.
Why does the Indesit refrigerator hum loudly immediately after turning on?
A loud hum in the first minutes of operation is often due to the fact that the compressor starts under load, equalizing the pressure in the system. If the hum does not subside after 5-10 minutes, check to see if the refrigerator is too close to the wall, and make sure that the tubes in the back are not vibrating against the body.
Is it dangerous if the refrigerator makes a cracking noise during defrosting?
Cracking noises during defrosting are usually caused by thermal expansion of the plastic or thawing of ice. It's not dangerous. However, if the crackling sound is accompanied by sparks or a burning smell, the device must be immediately de-energized.
How can you tell that it is the compressor and not the fan that is making noise?
In No Frost models, the fan often (but not always) goes silent when the door is opened. The compressor continues to hum. If the nature of the noise does not change when the door is open, most likely the source is the motor-compressor or vibration of the tubes.
Is it possible to replace the compressor on an Indesit refrigerator yourself?
Theoretically, it is possible if you have soldering skills and equipment for evacuation and refilling with freon. However, without a license and experience, there is a high risk of damaging the new compressor or breaking the tightness of the circuit, so it is recommended to contact the service.