The situation when food in the refrigerator freezes and vegetables turn into ice blocks is a common problem for owners of household appliances. If your refrigerator Indesit is too cold, this often indicates that the thermostat needs to be adjusted or there is a problem with the temperature control system. Unlike complex electronic systems, many models of this brand are equipped with mechanical regulators that require periodic manual adjustment.
Understanding the operating principle thermostat is the key to successfully solving the problem. Users often mistakenly believe that the maximum value on the dial corresponds to the highest temperature, when in reality this is the intensive freezing mode. Incorrect interpretation of the readings can lead to spoilage of products and unnecessary load on the compressor.
In this article we will analyze in detail the algorithms of actions for various types of control, from classic mechanical knobs to modern systems Electronic Control. You will learn how to diagnose the cause of excess cold and what steps to take to stabilize the microclimate inside the chambers without calling a specialist.
Principles of operation of the thermostat in Indesit refrigerators
The main element responsible for maintaining the temperature regime is thermostat (thermostat). In models with a drip defrosting system and in older versions No Frost this component is a mechanical device with a sensitive tube that responds to changes in the temperature of the evaporator. When the internal environment reaches a predetermined threshold, the thermostat opens the electrical circuit, turning off the compressor.
The adjustment scale on such models is usually numbered from 1 to 5 or from 1 to 7. There is a direct relationship here: the higher the number, the lower temperature inside the camera. If you set the regulator to maximum, the refrigerator will work almost non-stop, trying to reach extremely low values, which leads to freezing of food in the main compartment.
⚠️ Attention: Suddenly moving the thermostat knob from the “Maximum” to “Minimum” position can lead to water hammer in the compressor. Change the settings smoothly, taking pauses between switchings.
In more modern models with electronic control, the function of a mechanical thermostat is performed thermal sensor, the signals from which are processed by an electronic module. In this case, the user operates with specific degrees Celsius displayed on the display, which simplifies the task of fine tuning.
Adjusting a mechanical thermostat
For owners of refrigerators Indesit with mechanical controls, the setup process is as simple as possible, but requires attention to detail. The regulator is most often located inside the refrigerator compartment on the right wall or on the top panel of the case, next to the lighting lamp. It is a round knob with a scale of divisions printed on it.
To reduce the cold, you need to turn the knob towards lower values. If the regulator is set to 5 or 7, the optimal operating position for most situations will be 2 or 3. After turning the knob, do not expect an instant result: the system needs time (from 2 to 12 hours) to stabilize the temperature and reach a new operating mode.
It is important to take into account external factors affecting the operation of the equipment. In summer, when the ambient temperature in the kitchen is high, it may be necessary to set the regulator to a higher setting, and in winter - to a lower one. However, if even at the minimum value (1) the products continue to freeze, the problem may lie not in the settings, but in a malfunction of the thermostat itself or a refrigerant leak.
Temperature adjustment in models with electronic control
Refrigerators Indesit series Smart or equipped with a display on the door allow you to set the temperature with an accuracy of a degree. Control is carried out through a button panel located on the front of the case. The standard temperature setting for the refrigerator compartment is +4°C or +5°C.
To change the settings, you usually need to press and hold the snowflake or thermometer button for 3-5 seconds until the indicators start flashing. Then use the “Up” or “Down” buttons to set the desired value. After confirming the setting, the new mode will take effect. If you lower the temperature to +6°C or +7°C, and the cold does not go away, the sensor calibrations may be off.
Some models have a function Super Cool (Super cooling), which forcibly turns on the compressor at maximum power. If this function is activated accidentally, the refrigerator will freeze very hard until the mode is turned off manually or the timer expires (usually several hours). data-i="85">Resetting settings to factory settings
☑️ Electronic control check
Adjusting the damper in the No Frost system
In refrigerators with the system No Frost cold air is not generated directly in the refrigerator compartment, and enters there from the freezer compartment through a special channel. The air flow is regulated by by the damper (damper), which opens and closes depending on the readings of the temperature sensor.
If it is too cold in the refrigerator compartment, but everything is in order in the freezer, most likely the damper is “stuck” in the open position or the motor has failed, controlling its movement. In this case, cold air freely enters the upper chamber, freezing the contents. Mechanical adjustment is impossible here; diagnostics of the electrical part is required.
Sometimes the cause is freezing of the channel itself or the sensor that controls the damper. Ice blocks the mechanism, preventing it from closing. In such cases, it may help to completely defrost the refrigerator for 24 hours with the doors open, which will allow the ice to melt and free the moving parts.
⚠️ Attention: Do not try to forcefully open or close the door with sharp objects. The plastic elements of the mechanism are very fragile and easily break under mechanical stress.
The influence of the location of products on air circulation
Excessive hypothermia of individual zones of the refrigerator is often associated with improper loading of the chambers. Cold air is heavier than warm air, so it sinks, but in systems with forced circulation (No Frost), the flows can be chaotic. If food is placed close to the back wall, it may freeze to it or become frozen due to direct contact with the cold air outlet area.
The “air gap” rule must be observed. There should be free space between the products and the back wall, as well as between the shelves for free circulation of air masses. This will ensure uniform temperature distribution and prevent the formation of local zones with extremely low degrees.
Particular attention should be paid to the area above the vegetable boxes. This is where the main flow of cold often hits. If you notice that greens or fruits are freezing in this area, try moving them to the middle shelves or covering the containers with a lid to isolate them from direct exposure.
Why does the water in the door freeze?
The water in the door freezes due to the fact that this is the coldest zone in some models due to its proximity to the freezer and the absence active blowing with warm air. This is a normal phenomenon for two-chamber refrigerators of an old design.
Diagnostics of faults due to excessive cold
If adjusting the thermostat and correct loading of food did not help reduce the cold, it is worth considering the possibility of a technical malfunction. Below is a table to help classify symptoms and possible causes.
| Symptom | Probable cause | Required actions |
|---|---|---|
| The refrigerator works without stopping | The thermostat is faulty (contacts are stuck) | Replacing the thermostat |
| Ice only at the back wall | The seal is broken | Checking and replacing the sealing rubber |
| Cold in both chambers | Electronic control module failure | Board diagnostics, flashing or replacement |
| A click is heard, but there is no cold (or vice versa) | Problem with the start relay or compressor | Call a technician to check the electrical wiring |
One of the hidden reasons may be a freon leak. Paradoxically, if there is a leak, the compressor may run longer in an attempt to compensate for the loss of cooling capacity, which in some areas of the evaporator leads to local freezing, although the overall temperature may be high. However, if it is cold excessive, this more often indicates a “glitch” of the automation or thermostat.
It is also worth checking the rubber seals on the doors. If they do not fit tightly, warm, moist air constantly enters the chamber. The system, trying to compensate for the heat, can work in increased mode, but more often this leads, on the contrary, to a lack of cold. However, in mechanical models with a thermostat, a drop of which is placed in the chamber, the entry of warm air onto the drop can force the compressor to thresh without interruption, cooling everything to a minimum.
Prevention and care of the system cooling
Regular maintenance of the refrigerator Indesit helps to avoid situations with incorrect temperatures. Once every six months, it is recommended to carry out a complete defrost (even for systems No Frost) to remove ice that can block sensors and dampers. Keeping the ventilation holes clean is the key to proper air circulation.
Do not forget to wipe the temperature sensors if they protrude into the chamber. A build-up of grease or dust can distort their readings, causing the system to think it is warmer inside than it really is and turn on the cooling too much. For cleaning, use a soft cloth and neutral detergents.
Watch the position of the refrigerator in relation to the walls and heating devices. If the equipment is too close to the battery or with the back wall against the wall, the heat exchange of the condenser is disrupted. This causes the compressor to work with overload, which can destabilize the temperature regime in all chambers.
Is it possible to replace the thermostat in an Indesit refrigerator yourself?
Replacing a mechanical thermostat is a procedure of medium complexity, requiring disassembly of the internal panel and the availability of tools. However, if you do not have experience working with electrical wiring, it is better to entrust this to a specialist, as there is a risk of damaging other components or installing the sensitive tube incorrectly.
Why did the refrigerator start to get very cold again after defrosting?
If the problem returned immediately after defrosting, then the reason is not the freezing of the channel, but a malfunction of the control component (thermostat, sensor, damper). Defrosting in this case gave only a temporary effect, freeing the mechanism, but not eliminating the root of the breakdown.
What temperature is considered normal for the refrigerator compartment?
The optimal range for storing most products is considered to be the range from +3°C to +5°C. Temperatures above +6°C promote the growth of bacteria, and below 0°C leads to freezing of vegetables and dairy products.
Does the amount of food in the refrigerator affect the strength of the cold?
Yes, it does. An empty refrigerator cools faster and stronger because the air mass is small. A full refrigerator (especially with food with a high water content) works as a cold accumulator, smoothing out temperature changes and making the operating mode more stable.