The situation when the upper chamber in the refrigerator Indesit stops working, is familiar to many owners of this popular equipment. Typically, users are faced with the fact that food is still preserved in the freezer compartment, but in the refrigerator compartment the temperature rises sharply, and the food begins to spoil. This is a classic symptom of poor refrigerant circulation or a malfunction in the temperature control system.
Modern models operating in the No Frostmode or simpler drip defrost systems may show similar signs of failure. Before calling a professional, it is worth conducting basic diagnostics to understand the scale of the problem. Often the reason lies in the banal freezing of the evaporator or the failure of one of the sensors, which can be eliminated independently.
In this article we will analyze in detail the main reasons why Indesit refrigerator does not freeze the upper chamberand consider the algorithm of actions for each situation. It is important to understand that ignoring the primary signs of a malfunction can lead to more serious compressor failures.
Main signs of a malfunction and primary diagnosis
The first alarm bell is a change in temperature. If you notice that the upper compartment has become warmer than it should be, or, conversely, food has begun to freeze at the back wall, this is a signal to act. In models with electronic control, emergency temperature indicators may light up on the display or the corresponding symbols may flash.
Pay attention to the operation of the compressor. If the unit hums continuously, without turning off for hours, but there is no cold in the upper chamber, it means that the system is working for wear, trying to compensate for freon leakage or loss of performance. In other cases, the motor may, on the contrary, not start at all, making only short clicks.
Check the tightness of the door. Even a slight misalignment or contamination of the sealing rubber leads to a constant flow of warm air. In this case, cooling system there is simply no time to remove excess heat, and it becomes hot in the upper chamber.
⚠️ Attention: If you hear hissing or gurgling immediately after the compressor is turned off, this may indicate a refrigerant leak. Do not attempt to repair the seal system without special equipment and a license.
For accurate diagnosis, you may need a regular household thermometer. Place it in a glass of water and place it in the center of the upper chamber for several hours. Normal temperature should be between +2 and +5 degrees Celsius. If the readings are significantly higher, the problem is confirmed.
Problems with the defrost system and freezing of the evaporator
One of the most common reasons why Indesit stops freezing in the upper compartment is the formation of a “snow coat” on the evaporator. In system refrigerators No Frost air circulates through the channels, and if the evaporator becomes overgrown with ice, the flow of cold air into the upper chamber is blocked.
Ice blocks the ventilation holes, and cold air simply does not reach the food in the refrigerator compartment. At the same time, it can be very cold in the freezer, since the evaporator is often located there or nearby. Visually, you may not see the ice, since it is hidden behind plastic panels.
To test this hypothesis, it is recommended to completely defrost the refrigerator. Disconnect the device from the mains, open the doors and leave it for at least 10-12 hours (preferably for a day). If after turning on and setting the temperature the problem disappears, it means that one of the elements of the defrost system is faulty.
Which elements of the defrost system fail?
The defrost system includes an evaporator heating element, a defrost thermostat (defoster) and a defrost timer (or an electronic control module). Most often, the heating element burns out or the thermostat sticks, which is why the ice does not melt and increases with each cycle.
If, after defrosting, the refrigerator worked for a couple of days or weeks, and the situation repeated itself, then replacement of faulty parts is required. Ignoring this will result in the compressor working without stopping, which will reduce its service life.
Faults of the thermostat and temperature sensors
In models with mechanical control, thermoregulatoris responsible for the temperature. This is a device that turns the compressor on and off depending on the temperature in the chamber. If the bellows of the thermostat has lost its tightness or the contacts have oxidized, the compressor may not receive a signal to start.
In more modern models Indesit with electronic control, the control function is performed by temperature sensors (thermistors). They are located in different parts of the refrigerator: in the evaporator, in the refrigerator compartment, in the freezer compartment. If the upper chamber sensor produces incorrect data, the control module may “think” that cold is already there and does not turn on the cooling.
You can check the mechanical thermostat by closing its contacts (with the power off!). If the compressor starts working after closing, it means the regulator is faulty. It is more difficult with electronic sensors - to check them you need a multimeter to measure resistance at different temperatures.
- 🌡️ The sensor may show an open circuit, which can be easily checked by testing it with a multimeter.
- ❄️ The thermostat may “stick” in the “Off” position, not responding to an increase in heat.
- ⚙️ The electronic module may incorrectly interpret the readings of a working sensor due to a failure in the board.
A common mistake is replacing all sensors at once. In Indesit refrigerators, it is the defrost sensor that most often fails or the main sensor of the refrigerator compartment, and not the entire set. Diagnostics must be targeted.
Freon leak and problems with the compressor
If the compressor runs constantly, but there is no cold anywhere, or it turns on for a short time and clicks while trying to start, we may be talking about a refrigerant leak. Freon circulates through the tube system, and if the seal is broken (corrosion, manufacturing defects, mechanical damage), its quantity decreases.
If there is a leak, the upper chamber first stops freezing, since the refrigerant simply does not reach it in the required volume. The freezer can keep the temperature for some time, but soon the cold will disappear there too. In this case, there will not be uniform cooling on the back wall of the refrigerator, and local warm zones may appear.
The compressor is the “heart” of the refrigerator. If it is burned out or jammed, no cold will be produced at all. Signs of a compressor malfunction include strong heating of the motor housing, humming without starting, or complete silence of the unit while the power indicator is on.
It is almost impossible to repair the leak and refill the refrigerator yourself without expensive equipment. It is necessary to call a specialist who will perform a pressure test of the system with nitrogen to look for fistulas.
Clogged capillary system and fan malfunctions
The capillary tube is a very thin element of the system through which freon enters the evaporator. Over time, a blockage may form in it (oil oxidation products, moisture in the form of ice). This prevents the circulation of refrigerant, and the pressure in the system drops.
Signs of a blockage are similar to a leak: the compressor works, but there is little cold. However, if you touch the condenser (grid at the back), it may only be partially hot or have an uneven temperature. At the site of the blockage, the tube may swell or, conversely, become very cold.
In systems No Frost a fan is critical, which forces cold air from the freezer into the upper chamber. If the fan freezes in ice (due to defrost problems) or burns out, circulation stops. You may hear that the fan does not make noise, or, on the contrary, makes a grinding noise.
To check the fan, partial disassembly of the freezer is often required. Make sure the blades rotate freely and are free of ice. A jammed fan can cause overheating of the motor windings and its subsequent combustion.
Cleaning the fan and lubricating the bushing can temporarily solve the problem, but if the motor hums and does not spin, it is better to replace it. The price of the part is low, and the efficiency of the refrigerator will be fully restored.
Failures in the electronic control module
The electronics of refrigerators Indesit is sensitive to voltage drops in the network. Jumps can lead to failure of control board elements or program freezes. In this case, the refrigerator may behave inappropriately: not respond to buttons, randomly turn the compressor on and off, or not start defrosting.
Sometimes the problem is solved by a simple reboot. Unplug the refrigerator from the outlet for 15-20 minutes. This will clear errors in the controller memory. If, after switching on, the operating mode returned to normal, then the failure was software.
If the problem repeats, the tracks on the board may be damaged, the relay may have burned out, or the processor may have failed. Visually, traces of burning, swollen capacitors or oxides may be visible on the board. Repairing the module requires soldering skills and knowledge of electronics.
⚠️ Attention: Before removing the electronic module, be sure to take photographs of all connected connectors. Mixed-up wires can lead to a short circuit and failure of new parts.
In some cases, the control module requires flashing or replacement with an analogue one. Universal boards are often suitable for replacing burnt-out original units, but their installation requires setting parameters for a specific refrigerator model.
Procedure for detecting a malfunction
If you find that the upper chamber does not freeze, do not panic. Follow a clear algorithm to minimize product losses and simplify further repairs. The first step should always be to assess the situation and preserve the food.
Place perishable foods in a cool place or transfer them to the freezer (if there is space and the temperature allows). Check the thermostat settings - perhaps one of the household members accidentally turned the knob to minimum or turned on the “Super Freeze” mode, which in some models can block the operation of the refrigerator compartment for a long time.
☑️ Primary diagnostics of the refrigerator
Next, carry out a visual inspection and listening. Is the motor running? Is there ice on the back wall? Is the hazard light on? This data will help you more accurately describe the problem to the specialist or understand whether you can handle it yourself.
Compare the symptoms with those described above. If the problem is with the thermostat or fan, repairs may take a couple of hours. If you suspect a leak or a problem with the compressor, get ready to call a specialist.
| Symptom | Probable cause | Difficulty of repair | Need for a technician |
|---|---|---|---|
| The compressor is silent, there is no light | No power, the socket is burnt out | Low | No |
| The compressor hums, but does not start | Start relay, compressor wedge | Average | Desirable |
| Ice on the back wall, no cold | Faulty defrost system | Average | You can do it yourself |
| The compressor runs constantly, there is no cold | Freon leak, blockage | High | Required |
| It’s cold only at the back wall | The fan is faulty (No Frost) | Low | You can do it yourself |
Remember that Regular maintenance of your refrigerator will prolong its life. Once a year, it is recommended to completely defrost and clean the drainage system, even if the manufacturer declares the system No Frost. This will help avoid many problems with air circulation and moisture removal.
Frequently asked questions (FAQ)
Why does ice freeze in the upper chamber in the Indesit refrigerator?
Ice build-up in the fridge compartment (not on the back wall, but on products or shelves) most often indicates that moist air from outside is entering the chamber. Check the door seal: it should fit snugly around the entire perimeter. Also, the reason may be storing liquids in open containers, which increases the humidity inside.
How long should the refrigerator cool down after defrosting?
After turning on the defrosted refrigerator Indesit it should gain temperature within 2-4 hours. However, it is recommended to load the products in full no earlier than after 6-8 hours, when the temperature has stabilized. Until this moment, the compressor may work more intensely than usual.
Is it possible to operate the refrigerator if the upper chamber does not freeze?
For a short time - yes, if you have transferred food. But long-term operation in this mode is dangerous for the compressor, which will work without interruption, trying to reach the set temperature. This will lead to overheating and costly repairs. It is better to eliminate the cause of the breakdown promptly.
What does the flashing temperature indicator on the Indesit panel mean?
A flashing indicator (usually red) signals that the temperature in the chamber has risen above the permissible norm. If you just turned on the refrigerator or loaded a lot of warm food, this is normal. If the indicator flashes constantly while the compressor is running, this is an error code indicating a malfunction of the sensor or cooling system.
How to check whether the defrosting heating element is working?
To check the heating element, you need to “ring” it with a multimeter in resistance measurement mode. A working heating element should show a resistance within tens or hundreds of Ohms (depending on the power). If the device shows a break (one or infinity), the heating element has burned out and requires replacement. Before checking, be sure to disconnect the refrigerator from the mains!