Owners of Indesit equipment often encounter a situation where the lower chamber continues to work properly, but the upper compartment suddenly becomes warm. This is a common problem for dual-chamber models, especially those with No Frostsystem. Understanding how your model works is the first step to successfully restoring the temperature regime.
There are many factors that can disrupt the circulation of cold air. From a banal overload of products to the failure of complex electronics. In this article, we will analyze in detail why Indesit refrigerator it stopped freezing at the top, and how to independently diagnose the breakdown.
Sometimes it is enough to simply defrost the unit to bring it back to life. However, in other cases, the intervention of a specialist will be required. It is important not to ignore the first signs of a malfunction in order to avoid damage to products and expensive repairs.
Primary diagnostics: settings and operating modes
Before looking for a breakdown in the “insides” of the unit, it is necessary to exclude the human factor. Often, users accidentally change settings or do not take into account operating features. Check whether the regulator was accidentally turned to the “0” or “Min” position.
Pay attention to the number of products. If you've just loaded several bags of warm meat or pots into the chamber, the compressor may simply not be able to handle the amount of heat. In such cases, air circulation is physically disrupted.
⚠️ Attention: If you heard a loud knock or click before the refrigerator stopped freezing, this may indicate a jammed compressor or a power surge.
Check the tightness of the door. The rubber seal must not have cracks or creases. If the door does not close tightly, warm air constantly enters the chamber, and the cooling system does not have time to cool it.
Problems with the No Frost defrost system
Models Indesit No Frost are susceptible to the formation of an ice “coat” on the evaporator hidden behind the back wall. If the defrost system malfunctions, ice blocks the channels through which cold air should flow into the upper chamber. As a result, it is cold below, and warm above.
The main culprits are often a defrost heating element, a defrost sensor or a timer. These elements are responsible for periodically heating the evaporator to remove ice. If one of them fails, ice builds up uncontrollably.
Symptoms of a malfunctioning defrost system
frost is visible on the back wall, the cracking of ice is heard, the refrigerator works almost non-stop, trying to gain temperature.
To check, you need to defrost the refrigerator for 24 hours. If, after complete defrosting and turning on, the unit began to freeze again, but after a few days the problem returned, the diagnosis is confirmed.
Diagnostics of defrosting system elements requires the use of a multimeter. It is necessary to “ring” each element of the circuit for an open or short circuit. Replacing the faulty part usually solves the problem.
☑️ Diagnostics of the No Frost system
Malfunctions of the thermostat and sensors
The thermostat (thermostat) is the “brain” that commands the compressor to turn on or switch off. If your Indesit equipped with a mechanical model, it may simply be stuck in the "Off" position. Electronic sensors (NTC) often fail due to voltage fluctuations.
If the thermostat is faulty, the compressor may not start at all, or may work without stopping, but may not cool the upper chamber to the required values. In models with electronic control, error codes may light up on the display.
Replacing the thermostat is a simple procedure, but requires care. It is important to choose the right analogue, since the temperature ranges of operation may differ for different models. An error in selection will lead to incorrect operation of the unit.
Freon leak and problems with the compressor
If the refrigerator Indesit does not freeze the upper chamber, and the compressor runs almost non-stop, this is a classic sign of a refrigerant leak. Freon evaporates through microcracks in the circuit, and its pressure is not enough to drive away the cold throughout the entire volume.
Often a leak occurs in the foamed part of the housing or in solder areas. This is impossible to notice visually. A symptom may be swelling of the side walls of the housing or the appearance of yellowish oily spots near the compressor.
The compressor may also be faulty. If it hums but does not start, or starts for a couple of seconds and clicks, the winding may have burned out or the piston group has jammed. In this case, the unit must be replaced.
⚠️ Attention: Self-refilling with freon is impossible without special equipment and a license. If you suspect a leak, call a technician.
The table below shows the main signs that help distinguish a freon leak from other problems:
| Symptom | Freon leak | Clogged capillary | Thermostat malfunction |
|---|---|---|---|
| Compressor operation | Works without stopping | Works without stopping | Does not turn on or runs constantly |
| Condenser temperature | Warm only at the exit | Hot before the blockage, cold after | Cold (if not turned on) |
| Frost in the chamber | Absent or weak | Absent | Depends on the position of the handle |
| Sound of operation | Quiet, even hum | Gurgling, hissing | Clicks when switching |
Clogged capillary tube
Another technical reason why Indesit refrigerator it does not freeze well at the top is a clogged capillary tube. In the freon circulation system, plugs may form from oil or moisture oxidation products.
When clogged, the pressure in the system is disrupted. The compressor tries to pump the refrigerant, but cannot. This means that the evaporator in the freezer may be cold, but the evaporator in the upper compartment may be warm. A characteristic symptom is overheating of the compressor.
Removing the blockage requires purging the system with high pressure nitrogen and replacing the filter drier. At home, it is almost impossible to perform this procedure efficiently.
Failures in the electronic control module
Modern models Indesit are equipped with complex electronics. The control board may issue erroneous commands due to voltage surges or contact oxidation. In this case, the refrigerator may not turn on the fan or compressor at the right time.
Often the problem lies in a burnt-out relay on the board. Visually, this may appear as a blackening of the component. Repairing the module is possible, but requires soldering skills and knowledge of circuit design.
Sometimes it is enough to simply reboot the “brains” of the refrigerator. To do this, you need to unplug the appliance from the outlet for 15-20 minutes. If after turning on the problem disappears, then a software failure has occurred.
⚠️ Attention: Electronic modules are sensitive to moisture. If you defrosted the refrigerator with water, make sure that all contacts are completely dry before turning it on.
If you do not have skills in working with electronics, it is better not to touch the board yourself. Incorrect soldering can lead to complete failure of an expensive control unit.
Frequently asked questions (FAQ)
Why is it cold at the bottom in the Indesit refrigerator, but warm at the top?
Most often this indicates a malfunction of the defrost system (icing of the evaporator) or a freon leak. The capillary tube may also be clogged.
How long does it take to defrost the refrigerator to check?
It takes at least 24 hours to completely defrost the hidden cavities of the evaporator. A shorter defrosting may not produce results.
Is it possible to use a refrigerator if it does not freeze the top?
Short-term - yes, but the food in the upper chamber will spoil. Long-term operation in this mode is dangerous for the compressor, which can burn out from overload.
How to understand that the compressor has burned out?
The compressor may hum, but not start, or make a loud click and go silent. It may also be hot to the touch, but cold inside the system.
Is it necessary to change the filter drier during repairs?
Yes, any time the refrigerant circuit is opened (removing a leak, blockage), replacing the filter drier is mandatory to protect the system from moisture.