Loud operation of the refrigerator Indesit is a problem that many owners of two-chamber models face, especially after several years of active use. The appearance of an extraneous hum, knocking or periodic crackling can seriously disrupt the comfort of living in an apartment, especially if the kitchen is combined with a living room or is located in a studio. It is important to understand that any refrigeration unit makes sounds during operation, but a change in the usual acoustic background almost always signals a malfunction or violation of operating conditions.
Before calling a technician, it is worth carrying out an initial diagnosis to understand the nature and source of the sound. Compressor noise, hum from refrigerant circulation or rattling of plastic elements - all these symptoms indicate different components unit. In this article, we will take a detailed look at why your Indesit started to work louder than usual, and what steps need to be taken to fix the problem.
Modern two-chamber models, such as the series Indesit DF or DSare equipped with a No. Frost, which adds fans to the list of potential noise sources. If you notice that the sound appears in cycles or gets louder when you open the door, this will narrow your search. Let's look at the main technical reasons that require intervention, and those situations when loud operation is a variant of the norm.
Normal operating noise and design features
Many users begin to panic when they hear a hum immediately after purchasing or installing a new refrigerator. Indesit. However, it is worth considering that modern models can be louder than older Soviet units due to the use of more powerful compressors and an active air circulation system. A monotonous hum is considered normal, which either subsides or intensifies depending on the engine operating cycle. If the sound is uniform and is not accompanied by vibration of the case, most likely the equipment is working properly.
Particular attention should be paid to the sounds that occur during operation of the system No Frost. In two-chamber models Indesit air constantly moves between the freezer and refrigerator compartments, which creates characteristic wind noise. In addition, when the evaporator defrosts, sounds of popping bubbles or cracking of plastic may be heard due to the temperature difference. These processes are designed structurally and do not require repair.
⚠️ Attention: If the new refrigerator makes an unusually loud sound, let it stand in the off state for at least 4-6 hours after transportation. Starting a compressor with lost oil can lead to water hammer and final failure.
It is important to distinguish between operating hum and abnormal noise. The operating sound is usually constant in tone, while a malfunction often manifests itself in the form of sudden changes in volume, knocking or whistling. If in doubt, compare the noise level with the description in the instructions, where the permissible decibels are indicated for your model. Indesit Allowable decibels are indicated.
Problems with installation and vibration of the case
One of the most common reasons why a two-chamber Indesit loud humming or rattling, the installation is incorrect. Even a perfectly working compressor will create a lot of noise if the unit body is skewed or touches furniture. Vibration from a running motor is transmitted to the floor and walls, increasing significantly if the refrigerator is unstable. This is the easiest problem to fix, but often ignored.
To diagnose, you need to carefully rock the refrigerator body. If it wobbles, it means the legs are not adjusted correctly. Also check the distance to the walls and kitchen units: the gap should be at least 5-10 cm on all sides. When in contact with cabinets or a wall, vibration is transmitted to them, turning a quiet hum into an obsessive rattling sound throughout the kitchen.
☑️ Checking the installation of the refrigerator
Often the source of rattling is objects located inside the chambers or on the top panel. Empty glass shelves, bottles touching each other, or decorative items may resonate with the frequency of the compressor. Try removing everything unnecessary from the refrigerator and turning it on idle. If the noise disappears, the problem is solved by simply organizing the space.
Malfunctions of the compressor and start relay
If installation problems are excluded, the most likely cause of the loud humming becomes itself compressor. This is the heart of the refrigerator Indesit, and its wear or breakdown is accompanied by characteristic sounds. The engine may hum louder than usual due to worn-out internal mechanical parts, piston imbalance, or electrical problems. In such cases, the sound often becomes increasingly loud and frighteningly loud.
Another critical element is the start relay. If it is faulty, the compressor may try to start, making a loud click, then hum for a few seconds and turn off again with a characteristic knock. This mode of operation is extremely harmful to the motor windings and can lead to complete combustion of the motor in a short time. Visually, this is manifested in the fact that the refrigerator does not gain temperature, and the light inside is on.
| Sound type | Probable cause | Degree of danger | Actions |
|---|---|---|---|
| Strong hum, turning into knocking | Compressor wear | High | Motor replacement |
| Clicking and buzzing (5-10 sec) | Faulty start relay | Critical | Relay relay |
| Metal clanging | Destruction of the compressor suspension | Average | Suspension repair |
| Intermittent hum | Problems with the thermostat | Medium | Replacing the sensor |
In some cases, the compressor starts to work loudly due to a lack or excess of refrigerant in the system, although this happens less often. If you hear that the motor is running non-stop, without turning off for rest, this is a sure sign that it is trying to compensate for the lack of cold. Constant operation of the compressor at maximum power reduces its service life by 3-4 times and inevitably leads to expensive repairs.
⚠️ Attention: Replacing the compressor or starter yourself the relay requires skills in working with electricity and, in the case of a compressor, with freon. Improper sealing of the tubes will lead to gas leakage and final breakdown of the unit.
Fan noise in the No Frost system
In two-chamber refrigerators Indesit with the system No Frost the fan is responsible for the circulation of cold air. Over time, the fan bearings wear out, resulting in a howling, humming or high-pitched whistling sound. Often this sound intensifies when you open the door, since in many models the fan should stop when opening, but if the mechanism is jammed, the sound changes.
Another common problem is ice freezing on the blades or in the area of the fan motor. This happens if the seal is broken or the condensate drainage channel is clogged. The ice crust creates an imbalance, and the fan begins to make a lot of noise, and sometimes the blades touch the ice, making a cracking sound. In winter, when the humidity in apartments is higher, this problem occurs more often.
How to check the fan without disassembling?
To understand whether the fan is at fault, open the door of the refrigerator or freezer (depending on where the noise is heard). Find the sensor button, which is usually recessed into the body when the door is closed. Press it with your finger or tape, simulating the closing of the door. If 1-2 minutes after closing (or pressing the button) the noise stops or changes, there is a problem with the air circulation system or freezing.
To eliminate noise associated with the fan, it is often necessary to completely defrost the refrigerator within 24 hours. If after this the sound returns after a few days, it means that the fan bearing requires lubrication or replacement of the part. Models Indesit use inexpensive fans that are easy to find on sale by article number.
Sounds of refrigerant circulation and damper
Liquid refrigerant (freon), moving through the system tubes, can make sounds of gurgling, pouring or hissing. In normal mode, these sounds are quiet and barely audible. However, if the refrigerator Indesit begins to “gurgle” loudly, especially immediately after the compressor is turned off, this may indicate air in the system or a freon leak. In such cases, the cooling efficiency drops and the motor runs longer than usual.
In two-chamber models, a damper is often used to regulate the air flow between the chambers. If the damper actuator is faulty or is stuck in the half-open position, the air flow creates a strong whistle or hum. This is especially noticeable during quiet nights. Checking the damper requires removing the internal panel in the refrigerator compartment.
There is an opinion that loud bubbling is always bad, but in some cases it is simply a feature of the passage of gas through the capillary tube after a long stay. However, if the sound is accompanied by heat in the refrigerator compartment, this is a reason to contact service.
When an urgent call to a technician is necessary
There are a number of symptoms, ignoring which can lead to complete loss of equipment Indesit. If you notice that the refrigerator is not only loud, but has also stopped freezing, or frost has appeared on the back grille, you should not hesitate. Also a warning sign is the smell of burning or melted plastic combined with a loud humming sound - this is a sign of overheating of the electrical contacts or motor windings.
It is important to understand the difference between a repairable breakdown and an economically impractical restoration. Replacing a compressor is an expensive procedure and can account for up to 70% of the cost of a new refrigerator. While replacing a fan or relay costs much less and extends the life of the unit for years.
Below is a table that helps you decide whether to call a specialist:
| Symptom | Probable breakdown | Is it possible wait? | Repair cost |
|---|---|---|---|
| Loud knocking and lack of cold | Compressor jammed | No, the food will be lost | High |
| Howling when opening the door | Fan malfunction | Yes, but | Low |
| Clicks and attempts to start | Starting relay | No, the motor will burn out | Low |
| Hum and heat on the side walls | Capillary clogged / leak | No | Average |
Noise prevention and care of equipment
In order for a two-chamber Indesit to serve for a long time and quietly, it is necessary to regularly carry out preventive measures. First of all, this is monitoring the condition of the sealing rubber bands. If they dry out or become dirty, warm, moist air enters the chamber, which leads to increased ice formation and, as a consequence, noisy operation of the fan and compressor. Wipe the seals with a soft cloth once a month.
It is also important to keep the condenser grille at the back of the refrigerator clean. Dust and pet hair act as a heat insulator, causing the compressor to work harder and louder to remove heat. Regular cleaning behind the refrigerator will extend its life.
Do not forget to defrost the refrigerator at least once a year, even if you have a system No Frost. A complete shutdown for a day will allow you to get rid of hidden ice in hard-to-reach places, which often causes imbalance and noise.
☑️ Monthly refrigerator care
Frequently asked questions (FAQ)
Why does the Indesit refrigerator hum only at night?
At night, the overall noise level in the apartment decreases, and the operation of the refrigerator becomes more noticeable. In addition, the power supply voltage may drop at night, causing the compressor to hum louder. Also at night, defrosting cycles often turn on, accompanied by sounds.
Is it possible to lubricate a compressor if it is running loudly?
Modern compressors in refrigerators Indesit are sealed and maintenance-free. They do not have holes for adding oil. If the compressor is noisy due to mechanical wear, only replacing it can help. Lubricating the external elements will not solve the problem of internal noise.
Is it normal for the refrigerator to crack after defrosting?
Yes, this is normal. The cracking noise occurs due to the linear expansion and contraction of the plastic parts of the inner box and evaporator as the temperature changes. Usually these sounds stop 1-2 days after switching on.
How can you tell that it is the fan and not the compressor that is making noise?
The compressor is usually located at the bottom at the back and produces a low-frequency hum. The fan is located inside the chambers (behind the back wall) and emits a higher-frequency whine or whistle. If, when you open the door, the nature of the sound changes or disappears, there is a problem in the air circulation system (fan).
Does the floor affect the volume of the refrigerator?
Yes, a lot. If the floor is wooden or has voids (laminate on joists), it acts as a resonator, increasing vibration. In such cases, it is recommended to place special anti-vibration pads or a piece of thick rubber under the legs of the refrigerator.