The situation when Indesit refrigerator starts to work in increased mode often takes owners by surprise. Products on the top shelf become covered with an ice crust, meat becomes stone-like, and a thick layer of frost forms on the walls. This is not just an inconvenience, but a signal that the temperature control system has failed or is not working correctly.
Why Indesit, known for its reliability, can begin to “overdo it” with cold? Most often, the problem lies in a violation of heat exchange or failures in the electronics that control the compressor. Unlike older models, modern units require precise calibration of sensors. Ignoring the problem can lead to damage to the motor-compressor due to continuous operation without stopping.
In this article we will analyze the main reasons why refrigerator compartment turns into a freezer, and how to diagnose the problem yourself. You will learn when it is enough to simply reconfigure the device, and when parts will need to be replaced. Understanding the principles of operation thermostat will help you avoid unnecessary costs of calling a technician.
Incorrect operation of the thermostat and sensors
The most common cause of excess cold is a failure of thermostat (thermostat). This element is responsible for turning the compressor on and off depending on the temperature inside the chamber. If the thermostat contacts are stuck in the “on” position, the compressor will work continuously, pumping up cold even when it is not needed.
In electronically controlled models, such as Indesit No Frost, the function of the thermostat is performed by temperature sensor (thermistor). Over time, its resistance may change, and it begins to transmit false signals to the control module that the chamber is too warm. Having received such a signal, the “brain” of the refrigerator gives a command to cool, although in fact there is already sub-zero temperature.
Diagnostics of a mechanical thermostat is possible at home. To do this, you need to carefully remove the regulator and check its contacts with a continuity tester at different temperatures. However, replacing the electronic sensor requires disassembling the internal panel and having special knowledge about the location of evaporator.
It is worth considering that on some older models Indesit thermostats may have specific characteristics that differ from standard analogues. Using an unsuitable spare part will lead to incorrect operation of the entire system.
⚠️ Attention: When replacing a thermostat or sensor, make sure that the capillary tube of the new element has exactly the same length and bends as the old one. Incorrect placement of the sensor element will lead to the refrigerator starting to freeze heavily again or, conversely, stop turning off.
Problems with the No Frost system and ventilation
If your Indesit refrigerator is equipped with a system No Frost, then the uniform distribution of cold depends on the operation of the fan and defrost system. Freezing of air ducts or failure of a fan can lead to cold air stagnating in certain areas, creating local “glaciers.”
Often users are faced with a situation where food at the back wall turns into ice, but the temperature at the door is normal. This indicates that air circulation is violated. The reason may be freezing of the channel through which cold air flows from the freezer to the refrigerator.
It is also worth checking the condition of dampers (damper), which regulates the flow of cold air. If the damper is stuck in the open position, a flow of air at a temperature of -18°C from the freezer will constantly flow into the refrigerator compartment, which will inevitably lead to severe hypothermia.
To check the ventilation system, it is necessary to dismantle the back panel in the fridge compartment (if the design allows) and inspect the air ducts for ice plugs. In some cases, complete defrosting of the unit is required within 12-24 hours to eliminate ice jams.
Refrigerant leakage and compressor operation
Paradoxically, a leak freon can also lead to excessive freezing, but in specific areas. If there is little refrigerant left in the system, it can completely evaporate at the beginning of the evaporator circuit, causing severe local hypothermia and fouling, while the rest of the chamber will be warm.
However, if the refrigerator freezes strongly and evenly throughout the entire volume, this often indicates that the compressor does not receive a signal about stop. In modern Indesit inverter compressors, the control module is responsible for this. A failure in the electronics can force the motor to operate at maximum speed all the time.
It is difficult to check for a leak visually, but an indirect sign may be swelling of the side walls or the appearance of rust in the places where the tubes are soldered. If you notice that the refrigerator has been running without interruption for several days, and the temperature inside has dropped below -5°C, the risk of leakage or compressor failure is high.
| Symptom | Probable cause | Nature of icing |
|---|---|---|
| Continuous operation motor | Thermostat/sensor is faulty | Even ice throughout the chamber |
| Ice only at the rear wall | Ventilation channel clogged | "Fur coat" on the rear panels |
| The refrigerator rarely turns off | Freon leakage | Ice block only at the beginning of the evaporator |
| Intense cold at the door | The damper is faulty (damper) | Products at the door are frozen |
The influence of seals and chamber tightness
It would seem that a leaky door should lead to loss of cold, but in reality the opposite is true. If sealing rubber band on the refrigerator door Indesit is worn out, dirty or deformed, warm, moist air from the room constantly enters the chamber.
The moisture contained in this air instantly condenses on cold walls and products, turning into ice. Temperature sensors detect the increase in temperature due to heat gain and instruct the compressor to work harder. As a result, a vicious circle is formed: the more ice, the worse the heat transfer, and the more the unit freezes, trying to compensate for heat loss.
You can check the tightness with a simple test with a sheet of paper. Clamp the sheet with the refrigerator door around the perimeter. If the sheet is pulled out too easily or falls out on its own, it means that in this place the fit of the door it is broken.
How to restore the elasticity of the rubber?
If the rubber is simply stiff, but not torn, you can try treating it with silicone lubricant or gently heat with a hairdryer (without overheating!) to restore elasticity. However, this is a temporary measure.
Particular attention should be paid to the door hinges. If the refrigerator is warped, the door will not fit tightly even with a new seal. Adjusting the hinges is a simple procedure that can be performed with a wrench, tightening or loosening the fasteners.
Errors in settings and operation
Before sounding the alarm and looking for breakdowns, it is worth checking trivial things. Perhaps the refrigerator Indesit is working, but is not configured correctly. In models with electronic control, users often accidentally activate the “Super Freeze” mode or set the minimum temperature.
The location of the device also affects the operation. If the refrigerator is too close to a wall or heating appliances, the condenser ventilation system is overloaded. This can cause malfunctions in the electronics operating algorithms, which leads to incorrect temperature conditions.
The load on the camera also plays a role. If you put a large amount of warm food in the refrigerator compartment, the compressor will work hard to cool the volume. During this period, a large amount of condensation and ice may form.
☑️ Diagnostics of settings
It is recommended to periodically check the settings, especially if there are children in the house who could accidentally press the buttons on the control panel. Resetting settings to factory settings often helps eliminate software failures.
Do-it-yourself troubleshooting methods
If you determine that the problem lies in the settings or contamination, solve it yourself. The first step should always be to fill the defrosting refrigerator. Unplug the appliance, open the doors and leave it for at least a day. This will allow the ice to melt in the hidden channels of the system No Frost.
After defrosting, thoroughly wipe the chamber dry and turn on the refrigerator. If the problem was an ice jam, operation should return to normal. If after 1-2 days the situation repeats, a more in-depth diagnosis will be required.
To replace thermostat or sensor you will need a multimeter and a set of screwdrivers.
⚠️ Attention: Do not try to fill the refrigerator with freon or seal the pipes yourself without special equipment and a license. This is life-threatening and can permanently damage the equipment. Such work should only be performed by certified specialists.
If after all the checked measures the refrigerator Indesit continues to freeze very much, most likely the problem lies in the control module or the compressor itself. In this case, it is more advisable to contact a service center for professional diagnostics.
Prevention and proper care
To avoid problems with temperature conditions in the future, it is necessary to regularly care for the refrigerator. Keep them clean sealing rubberby wiping them with a soft, damp cloth. Do not use aggressive chemicals that can destroy the rubber structure.
Periodically check the ventilation holes inside the chamber. They must not be covered with food or packaging. Air circulation is the key to proper operation of the system No Frost.
It is also recommended not to put hot foods in the refrigerator. This creates an extra load on the compressor and contributes to the formation of condensation, which then turns into an ice crust.
Following simple operating rules will extend the life of your refrigerator Indesit and keeps food fresh. Remember that timely detection of minor faults prevents expensive major repairs.
Why does the refrigerator freeze more strongly after defrosting?
If after defrosting the refrigerator began to freeze even more, perhaps the settings in the control system were lost or the temperature sensor did not have time to calibrate. A new ice plug could also form in the condensate drain channel if defrosting was not carried out long enough. Let the device operate for 2-3 hours in normal mode before drawing conclusions.
Is it possible to regulate the temperature in different chambers separately?
In most modern models Indesit with two compressors or a Full No Frost system, the temperature is controlled separately for the refrigerator and freezer compartments. In models with one compressor and mechanical control, the setting is often made by one regulator, which changes the proportion of cold between the chambers.
What to do if the water drainage channel is frozen?
If you find that there is water under the refrigerator or at the bottom of the chamber, and the drainage channel is frozen, it can be cleaned using a special brush (often included) or a soft wire. Carefully insert the tool into the hole and check for patency. Do not use sharp objects to avoid damaging the plastic.
How often do you need to change the rubber seal?
The service life of the seal is on average 5-7 years. However, with active use or improper care (aggressive chemicals, infrequent washing), it may become unusable sooner. If you notice that the door no longer fits tightly or the rubber is cracked, it should be replaced immediately.