The situation when Indesit refrigerator stops cooling food in the main chamber, but the freezer continues to work normally, is one of the most common and alarming for owners. This behavior of the equipment indicates that the compressor is functioning, but the refrigerant circulation or temperature control system has failed in the refrigeration compartment circuit. Ignoring this problem can lead to damage to a large number of products and, ultimately, to failure of the compressor itself due to operation in increased mode.
It is important to immediately note that modern models Indesit, be they classic No Frost or systems Low Frosthave a complex design, where temperature imbalance is often associated with electronics or mechanical blockages of air flow. Before calling a technician, it is necessary to carry out initial diagnostics to eliminate common operating errors, such as incorrect loading of cameras or broken settings.
In this material we will analyze in detail the algorithm of actions that will help identify the cause of the malfunction. We will consider both simple cases that can be solved in 5 minutes, as well as complex technical breakdowns that require the intervention of professionals using special tools. Understanding the operating principles of your unit will save time and money on diagnostics.
Primary diagnostics and simple causes
The first thing to do if you notice that the refrigerator is not freezingis to check the temperature settings. It often happens that one of the household members accidentally touches the regulator or the parameters in the electronic control unit are lost. In models with mechanical controls, the thermostat knob may have moved to the “minimum” position, and in digital models, a power surge may have occurred that reset the settings.
Make sure that the equipment is not overloaded. If you've just returned from the store and your shelves are tightly packed with warm foods, your compressor may simply not be able to cope with the sudden increase in heat load. Also check that the ventilation holes inside the camera are not blocked. Air circulation is a critical process for models with the system No Frost.
Inspect the rubber seals on the refrigerator door. If they do not fit tightly, warm air constantly enters inside, and the unit does not have time to cool it, although the freezer, which has its own insulation, works normally. Dirt, crumbs or deformation of the seal are common culprits for loss of cold.
Malfunctions of the No Frost system and sensors
In refrigerators Indesit with the system No Frost cooling occurs due to forced air circulation from the evaporator located in the freezer. If the main compartment is warm and the freezer is made of stone, most likely the problem lies in the disruption of this air flow. This may be caused by a broken fan or frozen channels.
One of the common reasons is failure of defrost sensor or Heating element (heating element). If the defrost system does not work, the evaporator becomes coated with ice, which blocks the passage of cold air. The fan is humming, but the air simply cannot pass through the ice plug into the refrigerator compartment.
It is also worth paying attention to the fan itself. If its blades are frozen or the motor burns out, circulation stops completely. In some cases, ice blocks not only the evaporator, but also the damper that regulates the air flow between the chambers.
- 🧊 Frozen evaporator: requires complete defrosting of the equipment for 10-14 hours to remove the ice plug.
- 🔌 Faulty heating element: the heating element may burn out, stopping melt the ice on the evaporator.
- 🌬️ Fan failure: the absence of characteristic fan noise when the freezer door is open indicates its malfunction.
☑️ System diagnostics No Frost
Problems with the thermostat and electronic module
The thermostat (or thermostat) is a device that “tells” the compressor when to turn on and when to turn off. If this sensor fails and gives incorrect signals, the compressor may not start at all or work too little to cool the main chamber, although in the freezer the temperature can be maintained due to residual cold or inertia.
In modern models Indesit with electronic control, the role of the thermostat is performed by electronic control module temperature sensors (NTC). If one of the sensors “lies” or the module burns out from a power surge, the equipment goes into emergency mode or simply stops correctly managing temperature zones. This is often signaled by flashing indicators on the panel.
⚠️ Attention: Independent replacement of the electronic control module requires accurate diagnostics and often flashing. An error in the connection can lead to a short circuit and complete failure of the equipment.
Diagnostics of a mechanical thermostat is simple: its contacts must close when the temperature drops. If the contacts are oxidized or the mechanism is jammed, the circuit will not close. In electronic systems, checking is done by testing the sensors with a multimeter and comparing their resistance with reference values for a specific temperature.
Freon leakage and clogged capillary system
If the compressor works almost non-stop, hums, but there is no cold in any of the chambers (or it is very weak and only in the freezer), there is a high probability refrigerant leaks. Freon could leak through microcracks in sealed tubes, which are often hidden in the thermal insulation of the housing, or through the evaporator.
Another problem with similar symptoms is clogging of the capillary tube. An ice or mud blockage may have formed in the circulation system, which prevents freon from passing into the evaporator of the refrigeration chamber. In this case, the compressor tries to push gas, works with overload, but the circulation is disrupted.
How to distinguish a leak from a blockage?
If there is a leak, the condenser (grid at the back) will be cold or slightly warm, and the tubes at the outlet of the compressor will be room temperature temperature. If clogged, the tube at the outlet of the compressor will be very hot, and the condenser may be unevenly warm.
Solving these problems is only possible in a service center. It is necessary to find the place of the leak (often by pressure testing with nitrogen), solder it, evacuate the system and refill with freon strictly according to the weight indicated on the nameplate.
Compressor malfunctions
Although the condition says that the freezer works, sometimes it is an (illusion) created by the residual cold. If the compressor Indesit starts, hums for 10-20 seconds and turns off with a click, or hums but does not start, that is the problem. This may be an interturn short circuit of the windings or jamming of the piston group.
The compressor also often fails. This is a small part that provides the starting impulse. If the relay is stuck or burnt out, the engine cannot start. Replacing a relay is one of the simplest and cheapest repair procedures, which you can do yourself if you have basic skills. starting relay compressor. This is a small part that provides the starting impulse. If the relay is stuck or burnt out, the engine cannot start. Replacing a relay is one of the simplest and cheapest repair procedures that you can do yourself if you have basic skills.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| The compressor hums, but does not start | Faulty start relay | Low |
| The compressor is hot, clicks and turns off | Stuck compressor | High (replacement) |
| Quiet hum, no vibration | Winding break or lack of power | Medium |
| Works without stopping, but not freezes | Freon leak or loss of performance | High |
When replacing a compressor, it is important to choose a model with similar power and type of refrigerant. Using an unsuitable analogue can lead to rapid repeated failure of the equipment.
When you need to call a specialist
There are a number of situations when independent repair is not only impractical, but also dangerous. If you checked the thermostat, defrosted the refrigerator (making sure that the problem is not in the defrost system), checked the relay, but the cold did not appear, most likely you need charging with freon or complex repair of the circuit.
Working with refrigerants requires a license and special equipment (vacuum pump, manometric station, scales). In addition, improper disposal of old freon is harmful to the environment. If you need to solder tubes in the foamed part of the case, you cannot do without professional tools and skills.
Contacting professionals is also necessary if you are not confident in your abilities when disassembling equipment. Incorrect assembly can lead to damage to plastic elements, wiring or loss of tightness.
Prevention and operating rules
In order to Indesit refrigerator serve for a long time and not require frequent repairs, it is important to follow the operating rules. Do not place hot food in the chamber - this creates a tremendous load on the compressor and leads to abundant formation of condensation and ice. Products must cool to room temperature before being sent for storage.
Regularly, at least once a year, completely defrost the equipment (even systems No Frost sometimes require preventive defrosting for 1-2 days to evaporate moisture from hard-to-reach places). Keep the rear condenser grill clean: dust and pet hair worsen heat transfer, causing the motor to wear out.
Check the condition of the seals and don't slam the door. Taking good care of your equipment is the best guarantee that you will not have to deal with a situation where food spoils and the workshop is busy for weeks in advance.
Why does the refrigerator freeze only at the top or only at the bottom?
If the cold is distributed unevenly, this most often indicates a problem with air circulation (clogged ducts, faulty damper) or a leak Freon. In two-compressor models, this may mean failure of one of the circuits.
How long should defrosting last to remove the ice plug?
To completely melt the ice in the hidden channels of the system No Frost it is recommended to leave the refrigerator turned off with the doors open for at least 10-12 hours, or better yet, a day. Short-term defrosting may not have an effect.
Is it possible to use a refrigerator if it does not freeze well?
Operating equipment in this mode is extremely undesirable. The compressor operates at its limit, which leads to overheating and combustion. In addition, bacteria multiply quickly in a warm environment, which is dangerous to health.
How often do you need to change the filter in an Indesit refrigerator?
Most household refrigerators Indesit do not have replaceable filters that require regular replacement, like in air purifiers. However, if your model is equipped with an air purification system (for example, Fresh Air), follow the instructions; replacement is usually required every 6-12 months.