A situation when household appliances suddenly stop working always causes panic, especially when it comes to the safety of products. Indesit refrigerators They are famous for their simplicity and reliability, but even time-tested models can fail. Users often encounter that the unit hums, but does not cool, or the compressor does not start at all. Understanding the nature of the malfunction is the first step to successfully restoring the device's functionality.
Before calling a technician or looking for a service center number, it is worth conducting an initial diagnosis. Often the reason lies in trivial things that can be eliminated on your own in a few minutes. However, if it comes to compressor or refrigerant, the situation requires a more serious approach. In this article we will analyze in detail all possible failure scenarios and methods for solving them.
It is important to understand that ignoring the first signs of a malfunction can lead to a complete replacement of expensive components. The absence of cold for more than 24 hours while the compressor is running often indicates a critical freon leak. Therefore, a prompt response to changes in operation of the equipment will help save significant funds on repairs.
Primary diagnostics and external factors
Before disassembling the back wall or looking for tools, it is necessary to exclude external factors. Sometimes Indesit refrigerator does not turn on or does not work correctly due to problems with the power supply. Check that the plug is firmly inserted into the socket and that there is voltage in the network itself. To do this, you can connect another electrical appliance to the same outlet, for example, a lamp or hair dryer.
A frequent cause of “breakdown” is incorrect installation of the unit. If the device is too close to a wall or heating devices, heat transfer is disrupted. Condenserlocated at the back cannot effectively transfer heat to the environment, which causes the compressor to work with overload or shut down due to protection.
- 🔌 Check the integrity of the network cable and the presence of voltage in socket.
- ❄️ Make sure that there is a gap of at least 5-7 cm between the back wall of the refrigerator and the wall.
- 🌡️ Assess the room temperature: if the temperature is too low (below +10°C), some models may not start.
It is also worth paying attention to the position thermostat. Accidentally turning the knob to the “0” or “Off” position will cause the compressor to stop. In electronic models with a display, the operating mode may have been lost or the demo mode function may have been activated.
Problems with the thermostat and temperature sensors
One of the most common reasons why Indesit refrigerator does not freeze is the failure of the thermostat. This unit is responsible for turning the compressor on and off depending on the temperature inside the chambers. If the thermostat is “stuck” in the open state, the signal to start the engine is simply not received.
In models with the system No Frost electronic sensors are responsible for the temperature regime. Their readings are read by the control module, which decides to start the cooling cycle. If the sensor transmits incorrect data (for example, it shows that it is already cold inside), the compressor will not turn on. Replacing such elements requires disassembling the interior lining of the chamber.
⚠️ Attention: Before replacing the thermostat or sensors, be sure to disconnect the refrigerator from the power supply. Working with live electrical components is life-threatening!
To diagnose a mechanical thermostat, you can try to close its contacts directly. If after this procedure the compressor starts, then the problem is in the regulator. However, this method requires skills in working with electricians and an understanding of the device circuit.
It is worth noting that in modern Indesit models with electronic control, a sensor malfunction is often indicated by an error code on the display. The decoding of these codes is contained in the operating instructions, which greatly simplifies the search for a faulty element.
Malfunctions of the start relay and compressor
If you hear the refrigerator trying to turn on, there is a click, a hum lasts a few seconds, and then silence follows - most likely the problem is in start relay or the compressor itself. The relay is responsible for starting the engine, supplying the necessary impulse to the windings. Over time, the contacts may oxidize or burn, which makes starting impossible.
The compressor is the “heart” of the refrigeration unit. Indesit refrigerators use reliable piston motors, but they also have their own service life. If the engine overheats, the thermal protection is activated and it stops. Long-term operation in this mode can lead to an interturn short circuit of the windings, which will require a complete replacement of the unit.
Diagnostics of the compressor condition can be carried out by measuring the resistance of the windings using a multimultimeter. Normal resistance values vary depending on the specific engine model, but they are usually within a certain range. Deviations from the norm indicate internal problems.
☑️ Diagnostics of the start relay
Replacing the start relay is a simple procedure and is often done with your own hands. The main thing is to select an identical part, since the relay parameters must strictly correspond to the characteristics of the compressor. Using an unsuitable relay can lead to rapid failure of a new component or the engine itself.
Freon leakage and problems with the capillary system
The situation when Indesit refrigerator works constantly, the compressor does not turn off, but there is no cold, often indicates a refrigerant leak. Freon circulates in a closed circuit, and if the seal is broken, the gas escapes. Without a sufficient amount of refrigerant, heat exchange does not occur, and the temperature in the chambers rises.
Leaks can occur in the places where the tubes are soldered, in the evaporator (especially if it is located inside the walls of the case) or in the condenser. Sometimes the cause is metal corrosion, which develops over years. Visually detecting a leak is difficult; this often requires the use of a leak detector or a soap solution if access to the tubes is open.
| Symptom | Probable cause | Required actions |
|---|---|---|
| The compressor is hot, but not freezes | Freon leak or blockage | Call a technician to find a leak |
| The refrigerator rarely turns on | Thermostat is faulty | Replacement thermostat |
| The sound of boiling liquid is heard | Lack of freon | Refilling the system |
| Frost only at the entrance to the evaporator | Clogged capillary tubes | Purge the system or replace the filter |
Another problem may be clogged capillary tube. A filter drier is installed in the refrigerant circulation system, which traps moisture and debris. If it becomes clogged, gas circulation stops. This often happens after a poor-quality previous repair, when moisture or air has entered the system.
⚠️ Attention: Self-filling the refrigerator with freon is impossible without special equipment (vacuum pump, pressure gauge station, scales). Trying to do this “by eye” will lead to damage to the compressor.
Why can’t you ignore a freon leak?
If you leave the refrigerator running with a leak, the compressor will work hard, trying to gain temperature. This will lead to overheating and burning of the windings. In addition, oil from the compressor can get into the circuit, which will complicate and increase the cost of repairs in the future.
Problems in the defrosting system (for No Frost models)
In Indesit refrigerators with the system No Frost the automatic defrosting system plays a critical role. It consists of a heating element, a timer (or electronic module), a thermal fuse and a defrost sensor. If any of these elements fail, the evaporator becomes coated with ice, which blocks the circulation of cold air.
The user may notice that the freezer is cold but the refrigerator compartment is warm, or that the fan is humming, but no air is flowing. An ice plug is blocking the air ducts. In such cases, it is often necessary to completely defrost the unit within 24 hours to confirm the diagnosis.
Most often it burns out itself Defrosting heating element or the thermal fuse trips, breaking the circuit. The integrity of these elements is checked by testing them with a multimeter. If the heating element is intact, but does not heat, the problem may be in the timer or control module, which does not send a command to start the defrost cycle.
- 🧊 Check the evaporator for the presence of ice crust (disassembly of the rear panel of the freezer is required).
- ⏱️ Test the defrost timer or check for errors on the electronic module.
- 🔥 Measure the resistance of the heating element - it should be within normal limits (usually 200-400 Ohms).
Electronic control module: diagnostics and repair
Modern Indesit refrigerators are controlled by an electronic module, which is the “brain” of the device. It processes signals from all sensors and controls actuators. If the control board fails, the refrigerator may behave chaotically: turn on and off spontaneously, not respond to buttons, or display the wrong temperature.
The cause of module failure is often power surges in the network, moisture or condensation on the board, as well as manufacturing defects. A visual inspection of the board may reveal burnt tracks, swollen capacitors, or traces of burning. However, even if the board is visually intact, the problem may be in the microcircuits.
Repairing the control module requires professional knowledge in the field of electronics. At home, you can only check the fuses or the integrity of the connections. In most cases, it is necessary to replace the entire board or have it professionally resoldered at a service center.
It is worth considering that the module software can also fail. In some cases, resetting the settings to factory settings (Hard Reset) helps, the procedure for which is described in the instructions for a specific model.
Frequently asked questions (FAQ)
Why does the Indesit refrigerator hum loudly after turning it on?
The humming can be caused by incorrect installation (touching the cabinet walls or other friend), compressor or fan malfunction. If the humming is accompanied by vibration, check the legs of the refrigerator - they must be adjusted so that the unit is stable.
How long should the refrigerator cool down after transportation before turning it on?
If the refrigerator was transported in an upright position, 2-3 hours is enough. If it was lying on its side, you need to wait at least 8-12 hours (or better yet, a day) for the oil to drain back into the compressor. Turning on earlier than this period can lead to water hammer and breakdown of the compressor.
Is it possible to repair an Indesit refrigerator with your own hands without experience?
Without experience, you can replace a light bulb, thermostat, start relay or rubber seal. Repairs related to the freon circulation system (replacing the compressor, eliminating leaks, replacing the filter) require special equipment and a license, so you cannot do it yourself.
What to do if ice freezes in the refrigerator compartment?
This is a sign of a malfunction of the defrost system (in No Frost models) or a loose door fit. Check the seal, door hinges and operation of the defrost heating element. Also, the cause may be a clogged drain hole through which water should drain.
Why does the back wall of the Indesit refrigerator get very hot?
Heating of the side walls or rear grille (condenser) is a normal operating process. The refrigerator takes heat from the inside and releases it outside. However, if the walls are so hot that it is painful to touch them, or only a local zone is heated, this may indicate problems with the circulation of the refrigerant.