The situation when a two-chamber refrigerator Indesit stops freezing often takes you by surprise. You open the door, and there is melting ice, soft food and complete silence instead of the usual hum of the engine. In two-chamber models of this brand, the most common system is No Frost or static cooling with drip defrosting, and failure to operate can be caused by either a simple overload or a serious technical malfunction.
The very first thing to do is to assess the scale of the problem. If only the upper chamber does not freeze, but the lower chamber works normally (or vice versa), then the problem may lie in a violation of the refrigerant circulation or a malfunction in the defrost system. If the temperature has risen throughout the entire volume, then we are talking about a critical failure of the main components. Double-chamber refrigerators They are more complex than single-chamber ones, so diagnostics require a sequential approach.
Do not panic ahead of time. In many cases, the unit can be brought back to life on its own by checking the basic settings and the condition of the seals. However, if you hear strange clicking noises or the engine hums but won't start, intervention may require special tools. Let's look at the main breakdown scenarios so that you understand what you are faced with.
Violation of operating rules and simple errors
Before looking for complex breakdowns in compressor or the control system, it is necessary to exclude the human factor. Often the reason that the refrigerator Indesit stops freezing lies in a simple failure to comply with operating rules. For example, if you have just placed a large amount of warm food into the chamber, the unit may simply not be able to cope with the sudden increase in heat load. In this case, it will work continuously, but there will not be the desired cold.
Another common problem is a loose door fit. If the rubber seal is dirty, damaged or deformed, warm air constantly flows inside. Sensors detect an increase in temperature and give a command to work harder, but due to the constant flow of heat, the inside does not get colder. Check to see if anything is preventing it from closing tightly: a hanging shelf, a bag of groceries, or even a layer of ice at the end of the chamber.
⚠️ Attention: If you notice that the door seal has lost its elasticity or cracks have appeared on it, do not try to restore it using traditional methods such as boiling water. Rubber tends to age, and replacing the sealing circuit is the only correct solution to restore operation.
It is also worth checking the temperature settings. Perhaps one of the household members accidentally knocked the regulator to the minimum cooling position or turned on the “Vacation” mode, if such a function is provided by the model. In models with electronic control, a failure could occur due to a power surge in the network.
Here is a list of simple actions that need to be performed before calling the technician:
- 🔌 Check that the plug is firmly inserted into the socket and whether there is voltage in the network.
- ❄️ Make sure that the temperature regulator is not set to minimum (usually this is number 1).
- 🚪 Inspect the door seal for gaps and dirt.
- 📦 Check whether food is blocking the ventilation holes inside the chamber.
If after checking all these points the situation has not changed, and the unit still does not freeze, you will have to move on to a more in-depth technical diagnostics nodes.
Problems with the defrost system (for No Frost models)
In two-chamber refrigerators Indesit with a system No Frost the most common reason for the lack of cold is a malfunction of the automatic defrost system. The principle of operation is to periodically heat the evaporator to melt frozen ice. If this process is disrupted, the evaporator becomes overgrown with a “fur coat”, which blocks the circulation of cold air through the chambers. As a result, the fan hums, but no cold comes in.
The main culprits here are three elements: a defrost heating element, a defrost sensor (defroster) and a timer (or electronic control module). The heating element may simply burn out and stop heating. The sensor, which is supposed to record the evaporator temperature and turn off the heating, can “lie”, preventing the defrosting process from starting. As a result, ice freezes on the fan, blocking its blades, and circulation stops.
Diagnostics often require partial disassembly of the rear wall of the freezer. If you see a thick layer of ice on the evaporator, and the fan is stuck or humming, jammed with ice, the problem is in the defrost system. In this case, the refrigerator can freeze only after complete manual defrosting for 24 hours, but after turning it on it will stop cooling again after a couple of days.
It is also important to check the drainage system. If the meltwater drainage hole is clogged with debris or ice, the water begins to accumulate at the bottom and freeze, forming an ice plug. This interferes with the normal operation of the system and can lead to water flowing into the refrigerator compartment or under the unit.
Faults of the compressor and start relay
The compressor is the “heart” of the refrigerator Indesit. If it does not start, hums, clicks, or turns off after a few seconds, the problem lies in the compressor motor or start protection relay. Dual-chamber models often use dual-circuit systems or a single split-flow compressor, and failure of this unit stops cooling completely.
The start relay is a small block that fits over the compressor contacts. It is responsible for starting the engine. Over time, the contacts inside the relay oxidize or burn out, and it stops sending a starting impulse. In this case, you can hear a characteristic click, the hum of the motor for 3-5 seconds, and then another click and silence. This is a sign that the motor is trying to start, but the relay does not work or the thermal protection is triggered.
⚠️ Attention: If the compressor hums but does not start, do not keep the refrigerator plugged in for more than 10-15 minutes. Operating in this mode (“humming without starting”) quickly leads to burnout of the motor windings, after which repairs become economically unfeasible.
Also the cause may be an interturn short circuit in the windings of the compressor itself or jamming of the piston group. If, during startup, the circuit breaker (plugs) in the apartment is knocked out, this is a sure sign of a short circuit in the compressor circuit. In this case, independent repair is impossible - the entire unit must be replaced.
Checking the performance of the compressor and relay often requires skills in working with power tools. However, you can replace the starting relay with a working one (removed from a similar working refrigerator or a new one) yourself if you are confident in your abilities.
☑️ Compressor diagnostics
Refrigerant leak and capillary tube clogged
If the compressor runs continuously, do not when it turns off, it buzzes very loudly, but there is no cold in the chambers (or it is very weak), and the condenser (grid at the back) remains only partially cold or warm, most likely there is a freon leak or a blockage has formed. In refrigerators Indesit leaks often occur in the foamed part of the case (inside the walls) or at the junction of the tubes with the evaporator.
A clogged capillary tube is a disruption in the circulation of the refrigerant due to moisture, oil or decomposition products entering the system. The symptoms are similar to a leak: the compressor runs nonstop, but there is no cooling. In this case, the condenser can be hot only in the upper part, and the lower part will remain cold. This indicates that there is freon, but it does not circulate through the circuit.
It is extremely difficult to diagnose a leak or blockage at home. This requires the use of a pressure gauge station, a vacuum pump and special equipment to locate leaks (leak detector). Visually, you can only notice oily spots under the refrigerator or in the compressor area, which indicates the location of depressurization.
| Symptom | Probable cause | Nature of compressor operation | Condenser temperature |
|---|---|---|---|
| No cold, silence | Relay/compressor malfunction | Does not start or clicks | Cold |
| Weak cold, works non-stop | Freon leak | Works continuously | Barely warm or cold |
| No cold, works non-stop | Clogged capillary system | Works continuously, can get warm | Hot only at the exit |
| There is cold, but weak | Thermostat malfunction | Works cyclically, but rarely turns off | Hot |
Repairing the refrigerant circulation system is a complex process that includes soldering copper tubes, evacuation of the system and refilling with new gas. It is impossible to carry out this work independently without equipment and skills.
Failures in the operation of the thermostat and electronics
Thermostat (temperature regulator) is a sensor that tells the compressor when to turn on and when to turn off. If it is faulty, the refrigerator may not “know” that it has become warm inside and may not start the motor. Or vice versa, freeze until blocks of ice form. In models Indesit with mechanical control, the thermostat is located inside the refrigerator compartment and has an adjustment knob.
In more modern models with electronic control, temperature sensors perform the role of a thermostat. There may be several of them: in the freezer, in the refrigerator, on the evaporator. If one of the sensors produces incorrect data, the control module may block the compressor or fan from starting. This is often indicated by blinking indicators on the control panel.
It is also worth paying attention to the control module. Power surges in the network could damage the electronic components of the board. In this case, the refrigerator may behave chaotically: turn on and off spontaneously, not respond to buttons, or display errors. Repairing the module requires professional soldering and circuit design.
If your refrigerator is equipped with a display, pay attention to the error codes. Models Indesit often produce alphanumeric combinations (for example, F01, F04) that indicate a specific faulty unit. The decoding of the codes can be found in the instructions or technical manuals.
When you need to call a technician: critical breakdowns
Despite the desire to save money, there are situations when independent repair of a two-chamber refrigerator Indesit is not only ineffective, but also dangerous. If you have identified a freon leak, a breakdown of the compressor windings, or a complex electronic malfunction, it is better to contact professionals. An attempt to “repair” a sealed circuit without experience will only lead to damage to expensive components.
In addition, modern refrigerators require the use of specific tools: filling stations, vacuum degassers, professional multimeters and soldering kits. The purchase of such equipment for one-time repairs is not economically justified. The master will bring with him everything necessary and will give a guarantee for the work performed.
⚠️ Attention: Freon used in refrigerators, although considered safe for the ozone layer in modern models, in high concentrations can be dangerous if inhaled in a confined space. In addition, improper soldering of tubes under pressure can lead to an explosion or fire.
Also, calling a specialist is necessary if the refrigerator is under warranty. Any independent intervention, seals with traces of tampering, or violation of the integrity of factory seals automatically remove the device from warranty service.
Prevention and extension of service life
In order for a two-chamber refrigerator Indesit to serve for a long time and not stop freezing at the wrong moment, it is important to follow simple rules of prevention. Regular defrosting (even for No Frost systems, once a year is recommended) helps keep the heat exchanger clean and prevents the formation of ice jams in hard-to-reach places.
Keep the condenser grille at the back of the refrigerator clean. Dust and pet hair accumulate there and impair heat transfer. The compressor is forced to work longer and harder, which reduces its service life. You need to vacuum the back wall at least once every six months.
Do not place the refrigerator close to the wall. For normal air circulation around the case, it is necessary to leave a gap of at least 5-10 cm. Overheating of the case also leads to malfunctions and increased energy consumption.
Following these simple recommendations will avoid most of the problems described above and keep your food fresh for many years.
Why does the Indesit refrigerator hum, but not freezing?
If you hear a humming sound, but there is no cold, this most often indicates that the compressor is running without starting (a problem with the start relay or jamming) or a freon leak (the compressor is chasing the remaining gas). The capillary tube may also be clogged.
How long does it take to defrost the refrigerator after a breakdown?
To completely defrost and dry the internal cavities, especially if there was a problem with the No Frost system or a leak, the refrigerator should be left turned off with the doors open for at least 24 hours.
Is it possible to replace the thermostat in an Indesit refrigerator yourself?
Yes, if you have skills in working with electricians and tools. The thermostat in mechanical models is quite simple to change: you need to remove the handle, unscrew the fastening, disconnect the wires and install a new similar sensor.
What to do if there is ice in the freezer and heat in the refrigerator?
This is a classic sign of a malfunction of the defrost system (the heating element, sensor or timer has burned out) in No Frost models. Ice has blocked the air passages. Defrosting and replacement of a faulty element of the defrosting system is required.