The situation when Indesit refrigerator is crackingis familiar to many owners of this popular Italian equipment. Often this sound appears suddenly, breaking the silence in the apartment, and makes owners worry about the safety of food and the serviceability of the unit. The noise can be barely noticeable or clearly audible even from the next room, which creates serious discomfort during living.
In most cases, extraneous sounds indicate physical processes inside the cooling system or mechanical vibrations transmitted to the case. Understanding the nature of these sounds is the first step to solving the problem. Indesit refrigerators, like any other equipment, have their own design features, which can manifest themselves in the form of a specific acoustic background.
Do not panic ahead of time when you hear a crash. Often the reason lies in simple things that can be fixed without calling a specialist. However, loud and increasing sounds should not be ignored either, as they may indicate wear of important components. In this article, we will look in detail at why noise occurs and how to classify it.
Natural sounds of a cooling system
Before sounding the alarm, it is necessary to distinguish normal operating noise from signs of breakdown. Refrigerantcirculating through the system makes sounds, especially when the compressor starts or stops. Liquid freon, turning into gas, can gurgle, hiss or make short crackling sounds. This is an absolutely normal physical process, determined by the laws of thermodynamics.
In addition, the materials from which it is made Indesit refrigeratorare subject to thermal expansion. The plastic of the internal tank and the metal elements of the evaporator compress and expand when the temperature changes, which is often accompanied by a characteristic cracking sound. Typically, such sounds occur immediately after the motor is turned off or at the moment it is turned on, when the temperature difference is most significant.
⚠️ Attention: If the crackling sound is heard evenly and quietly, accompanying the motor operating cycles, most likely, everything is in order with the equipment. You should be concerned if the sound becomes loud, harsh, or appears chaotically.
It is important to consider that in models with the system No Frost sounds may be more varied due to the presence of additional fans and defrost timers. In such units, periodic crackling noise may be associated with the operation of the evaporator heater or switching of the air supply dampers.
How to distinguish normal noise from a breakdown?
Normal sound is usually quiet, does not irritate the ear and occurs predictably (when turned on/off). The sound of a breakdown is often loud, metallic, accompanied by vibration of the case or buzzing, which intensifies over time.
Mechanical reasons: vibration and fastenings
One of the most common reasons why the refrigerator is crackingis banal vibration. If the unit is not installed level, its housing may resonate with the compressor. The vibration is transmitted to the floor, walls and objects standing nearby, creating the effect of increased noise, which is perceived as crackling or rattling.
Carefully inspect the compressor mounts. Over time, the rubber shock absorbers on which the motor is mounted may dry out, crack, or come off. In this case, the metal housing of the compressor begins to touch the pipes or frame of the refrigerator during operation, producing loud metallic sounds. Also, a source of noise can be loose mounting bolts of the motor-compressor itself.
Another source of mechanical noise is the internal layout elements. Plastic panels, shelves or egg trays may vibrate from the motor if they are not securely fastened. Quite often, owners forget to check whether the back wall of the refrigerator is touching the kitchen wall or furniture, transmitting vibration.
Problems with the compressor and start relay
If The Indesit refrigerator is cracking it is loud and aggressive, the problem may lie in the heart of the unit - the compressor. Wear of bearings or internal piston groups of the motor leads to metallic knocking and crackling sounds. This is a serious malfunction that requires the intervention of a specialist, since further operation can lead to final failure of the engine.
Often the source of clicks and crackling noises is Starting relay. This small element is responsible for starting the engine. If its contacts are burnt or the mechanism is jammed, when you try to start, a loud click is heard, followed by a buzzing or crackling sound, after which the motor may stall. In such cases, the relay requires replacement, which is a relatively inexpensive procedure.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Loud click and stop | Start relay malfunction | Low |
| Metallic knock inside the motor | Compressor wear | High |
| Vibration and rattling of the housing | Problems with fasteners or installation | Low |
| Crack during defrosting | Thermal expansion or defrost element | Does not require repair |
It should be noted that in older models Indesit with piston compressors, the noise may initially be higher than in modern inverter models. However, a sharp change in the nature of the sound should always alert the owner.
☑️ Compressor diagnostics
The influence of the defrosting system on the sound background
In models with the system No Frost or Frost Control crackling noise may be associated with the operation of the automatic defrosting system. The heating element (heating element) is periodically turned on, which melts the ice on the evaporator. Contact of a hot coil with ice or water sometimes causes hissing and crackling, which is normal.
However, if the ice freezes unevenly or the fan touches the ice coat, an unpleasant cracking and hum may occur. This often happens when the defrost sensor or timer is faulty. In such cases, the ice does not have time to completely melt, accumulates and begins to interfere with the rotation of the fan blades.
⚠️ Attention: If you notice that a cracking sound is accompanied by the cessation of cooling in one of the chambers, perhaps the defrosting system is not working correctly and the refrigerator must be completely defrosted for 24 hours.
It is also worth mentioning valve that switches refrigerant flows. In some models Indesit it may make characteristic clicks or crackles when switching operating modes. This is a normal situation that does not require repair if the cooling of food does not suffer.
External factors and operating conditions
Sometimes the answer to the question is why the refrigerator is crackinglies not in the technology itself, but in the conditions of its environment. Furniture standing close and in contact with the body may resonate. Check to see if there are heavy objects, cans, or decorative items on the top panel of the refrigerator that could vibrate.
It is also worth checking the rear condenser grille. If it is deformed and touches the compressor or pipes, constant metallic rattling will occur during engine operation. Carefully, observing safety precautions, you can bend the grill bars to eliminate contact.
The electrical network can also affect the operation of equipment. Voltage surges or unstable current frequency can cause the compressor to operate abnormally, which is sometimes accompanied by a change in the background sound. To protect expensive equipment Indesit it is recommended to use voltage stabilizers.
- 🔌 Check the tightness of the plug to the socket - poor contact can cause humming.
- 🧱 Move the refrigerator from the wall at least 5-7 cm for free air circulation.
- 🧹 Make sure that the gap between the capacitor and the wall is not clogged with dust, which can increase the noise.
Algorithm for self-diagnosis of noise
If you want to independently find out the reason why Indesit refrigerator is cracking, act consistently. First, listen to where exactly the sound is coming from: from below (compressor), from behind (grille) or from inside (plastic, ice). This will help narrow down your search.
Try to lightly press different parts of the case with your hand while working. If the cracking noise stops when you press the door or side wall, then the problem is vibration of the panels. If the sound comes from the motor and does not change when touching the outer walls, the problem is probably in the mechanics of the compressor.
⚠️ Attention: Never diagnose internal electrical elements without disconnecting the refrigerator from the network. Electric shock is life-threatening.
In cases where simple noise elimination methods have not helped, and the sound becomes intrusive, it is better to turn to professionals. The technician will be able to accurately determine whether the compressor needs to be replaced, the defrost system needs to be repaired, or whether it is enough to simply lubricate the fan bearings.
Is it possible to lubricate the compressor yourself?
Independent lubrication of the compressor without special equipment and skills is impossible and dangerous. The compressor is a sealed unit, and any violation of its integrity will lead to freon leakage and breakdown.
Frequently asked questions (FAQ)
Why does the Indesit refrigerator only crack at night?
At night, the overall noise level in the apartment decreases, and the operating sounds of equipment become more noticeable. In addition, at night the voltage in the network may stabilize or, conversely, jump, which affects the operation of the motor. Also, neighbors work more quietly at night, which makes any crackling sounds more contrasting.
Is it dangerous to continue to use the refrigerator if it is cracking?
If the crackling is caused by thermal expansion or vibration of the shelves, it is not dangerous. If the sound comes from the compressor (metallic knocking, humming), further operation may lead to engine combustion. In this case, it is better to turn off the device before the technician arrives.
How much does it cost to replace the start relay in an Indesit refrigerator?
The cost consists of the price of the part itself and the work of the technician. The start relay is an inexpensive component, but it is better to check the exact price in the service centers of your region, since it depends on the specific compressor model.
Can a new refrigerator crack?
Yes, new equipment can make sounds of grinding parts, thermal expansion of plastic and the operation of the refrigerant. Usually, after a few weeks of operation, these sounds become quieter or disappear completely.