The situation when Indesit refrigerator stops cooling products in the upper compartment, but the freezer continues to operate as normal, is one of the most common complaints from owners of this equipment. This behavior of the unit often causes bewilderment: the compressor seems to be humming, the light inside is on, but the temperature in the refrigerator compartment is approaching room temperature. This does not mean that the device is completely out of order, but it signals a serious failure in the refrigerant circulation or control system.
The reason lies in the fact that many models No Frost and Indesit static refrigerators use a single-circuit cooling system or a specific distribution scheme cold. If the cold stops flowing to the upper part, this indicates an imbalance. In some cases, the problem is solved by simple defrosting, in others, the intervention of a technician with professional equipment is required to find a leak or replace the compressor.
Next, we will analyze in detail the mechanics of your unit, consider the probable causes of the breakdown and draw up an action algorithm that will help you understand whether you can fix the device yourself or calling a specialist is inevitable. Remember that ignoring the problem at an early stage can lead to damage to a large number of products and higher repair costs.
Principles of operation of the No Frost and static cooling system
To understand the essence of the problem, you need to briefly consider the design of refrigerators Indesit. In models with the No Frost system (or Low Frost), cooling occurs due to forced air circulation. A fan located in the freezer blows cold air through special channels into the refrigerator compartment. If the freezer is working, it means that the compressor and the evaporator itself are working, but the path of cold to the upper chamber is blocked.
In static models (drip system), the cold is transferred through the back wall where the evaporator is located. The correct operation of the thermostat and the absence of ice jams are important here. Violation of the door seal or wear of the seal can lead to moisture getting inside, freezing and blocking the access of cold, creating the effect of a working freezer with a warm upper chamber.
⚠️ Attention: An attempt to forcefully open the air circulation system or break through the ice plug with sharp objects is strictly prohibited. Damage to the channel or evaporator will lead to an immediate release of freon and expensive repairs, which may not be economically feasible.
The key element here is the temperature balance. In good condition, the system itself regulates the supply of cold. If this balance is upset, the electronics may “think” that the freezer is not cold enough and run the compressor without stopping, ignoring the needs of the upper compartment. That is why diagnostics begin with understanding what type of defrosting system is installed in your Indesit.
Independent primary diagnostics and complete defrosting
Before sounding the alarm and calling a technician, it is necessary to exclude the most banal, but often encountered scenario - the formation of an ice plug in the air supply channel or on the sensors. This is especially true for models where freezer is located at the bottom. Ice blocks the damper, and cold air physically cannot enter the upper chamber.
To carry out high-quality defrosting, it is not enough to simply turn off the device for a couple of hours. Ice blocks inside the hull can leak for up to 24 hours. You need to completely empty the refrigerator of food, unplug it and leave it with the doors open for at least a day. This time is necessary for all the ice to melt, including that which is deep in the air duct system.
☑️ Correct defrosting algorithm
After 24 hours, thoroughly wipe all surfaces dry. Only after this turn on the device. If within 5-7 hours of operation the temperature in the refrigerator compartment began to drop, then the problem was precisely the system freezing. In this case, it is important to check the tightness of the door and the integrity of the seal so that the situation does not repeat itself.
Malfunctions of the defrosting system: heating element, timer and sensors
If complete defrosting helped only temporarily, and after a week the situation repeated itself (again the refrigerator does not freeze, and the freezer is working), then the problem lies in the automation of the defrost system. In models Indesit No Frost the heating element (heating element) is responsible for heat removal, which is periodically turned on to melt the ice on the evaporator.
The main components that can fail:
- ❄️ Defrost heating element: burns out and stops working heat, as a result of which the evaporator becomes overgrown with a “fur coat” that blocks ventilation.
- ❄️ Defrost timer: a mechanical or electronic unit that does not give the command to turn on the heating at the right time.
- ❄️ Defrost sensor (defrost): a thermistor that can “lie” to the controller about the evaporator temperature, which is why the defrost cycle does not start.
Diagnostics of these elements requires a multimeter. It is necessary to “ring” the heating element for resistance - if the device shows a break (infinity), the element requires replacement. The defrost sensor is also checked: at room temperature, its resistance should be in a certain range (usually about 6-8 kOhm, but the exact values depend on the model Indesit). If the sensor shows zero or infinity, it is changed.
How to check the heating element without disassembling the entire refrigerator?
In some models, access to the heating element can be obtained by removing the back panel in the freezer. However, for a complete diagnosis it is often necessary to remove the evaporator. If you are not confident in your skills, it is better to limit yourself to a visual inspection for the presence of a thick layer of ice under the panel.
Problems with the fan and thermal control damper
In refrigerators with a system No Frost the fan is responsible for air circulation. If it stops rotating, cold air remains in the freezer compartment and does not flow into the refrigerator compartment. As a result, it may even be too cold in the freezer (food freezes), and warm from above.
Reasons for stopping the fan:
- 🌀 Freezing: the fan blades are frozen to the body due to ice.
- 🌀 Motor malfunction: the motor winding is burned out fan.
- 🌀 Wiring problem: oxidation of contacts or broken cable.
It is also worth paying attention to the air damper. This is a mechanical or electrical curtain that regulates the amount of cold air coming from the freezer. If the damper is stuck closed (often due to ice or a broken actuator), the upper chamber will remain warm. In some models Indesit the damper drive is controlled by a separate motor, which can also fail.
Freon leakage and blockage of the capillary system
A more serious reason why Indesit refrigerator it does not freeze well in the upper compartment is partial Refrigerant leak or blockage. In contrast to the complete absence of cold, with a partial leak or blockage, the compressor continues to work, and its power may be enough to maintain a low temperature in a small volume of the freezer, but there is no longer enough freon for the entire volume of the refrigerator.
Characteristic signs of a leak or blockage:
- 🔧 The compressor works almost non-stop, without turning off.
- 🔧 The condenser grille at the back of the refrigerator is either barely warm or only partially hot.
- 🔧 The temperature in the freezer is maintained, but food can thaw when fully loaded.
- 🔧 Blistering of the wall of the refrigerator compartment (a sign of corrosion and leakage in the foamed part).
Diagnosing a leak or blockage at home is extremely difficult and dangerous. This requires evacuation of the system, checking the pressure and locating the leak using a leak detector. If a leak is confirmed in the foamed part of the body (which often happens with Indesit due to corrosion of pipelines), repairs may be unprofitable.
Malfunction of the control module and temperature sensors
Modern refrigerators Indesit are controlled electronically. If the “brain” of the device receives incorrect data from the sensors, it may not control the compressor and fans correctly. For example, if the temperature sensor in the refrigerator compartment fails and shows that it is “-20°C” (although in fact it is “+20°C”), the control module will not turn on cooling for the upper chamber, considering that the temperature has already been reached.
Often the problem lies in oxidation of the sensor contacts or a violation of the integrity of the wiring. Visually this can be seen by corrosion on the connectors. The electronic control module may also "fail", especially if it is located in an area of high humidity (for example, in the base or at the top, where condensation gets in).
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Humming, but not freezes on top | Clogged channel, ice plug | Low (defrost) |
| Thick layer of ice on the back wall | Faulty heating element or defrost timer | Medium (replacement of parts) |
| Compressor does not turn off | Freon leak, blockage, thermostat breakdown | High (needs a technician) |
| Fan does not makes noise | Fan motor burnt out | Medium (fan replacement) |
When you need to call a specialist: final summary
To summarize, you can highlight a clear line between what you can do yourself and when you need a specialist. If after 24 hours of defrosting the refrigerator is working normally, you are lucky, keep an eye on the seal. If the problem returns after a few days, the heating element, sensor or fan most likely needs to be replaced. These works can be done by a person with minimal skills and tools.
However, if you observe swelling of the walls, lack of cold when the compressor is running even after defrosting, or if the model requires evacuation of the system to replace freon - Do not try to repair this yourself without experience with refrigeration equipment. Unprofessional soldering or incorrect refrigerant charging can completely destroy the compressor, the cost of which is up to 70% of the price of a new refrigerator.
⚠️ Attention: Technical characteristics and location of components may vary depending on the year of manufacture and the specific series of the Indesit refrigerator. Before starting disassembly, check the official diagram of your model.
Frequently asked questions (FAQ)
Why is there ice in the freezer, but warm in the refrigerator?
This is a classic sign of poor air circulation. Ice in the freezer indicates that the cooling system is working, but cold air does not enter the upper chamber due to an ice plug in the duct, a malfunction of the fan or a closed damper.
How long does it take to defrost the Indesit to remove the ice plug?
It is recommended to keep the refrigerator turned off with the doors open for at least 24 hours. A short defrost of 2-3 hours often melts only visible ice, leaving a plug deep in the system, which leads to the problem reoccurring in a couple of days.
Could there be a problem with the thermostat if the freezer is working?
Yes, if the thermostat (or temperature sensor) is installed in the refrigerator compartment and has failed, it may not give the command to turning on the compressor, considering the temperature to be normal. However, in this case, the freezer will eventually stop freezing, since the compressor will not start.
What to do if, after defrosting, the refrigerator does not freeze again after 3 days?
This indicates a malfunction of the automatic defrosting system (heating element, timer, sensor). Ice again accumulates on the evaporator and blocks the channels. It is necessary to diagnose the defrost electrical circuit and replace the burnt element.