The situation when Indesit refrigerator suddenly stops turning on is familiar to many owners of this popular equipment. You open the door, you see that it’s warm inside, the food begins to spoil, but the characteristic hum of a running motor is absent. Complete silence or quiet clicks followed by a pause are sure signs that it won't start. In most cases, the problem lies not in complex electronics, but in one of the key components of the cooling system, which you can check yourself. compressor won't start. In most cases, the problem lies not in complex electronics, but in one of the key components of the cooling system, which you can check yourself.
Why the refrigerator does not turn on after defrosting or a power surge? Often the matter is trivial: the protection has tripped or the trigger mechanism has failed. However, this symptom cannot be ignored, since a long stop of the compressor leads to defrosting of the chamber and spoilage of supplies. It is important to understand that inverter models classic units with a linear motor can behave differently, but the basic principles of diagnostics remain similar.
Before calling a technician, it is worth carrying out an initial diagnosis so that rule out simple faults. Start relay, thermostat or a simple refrigerant leak - these are the main suspects. In this article we will look in detail at how to determine the cause of the breakdown, what tools will be needed and in which cases do-it-yourself repair is really effective, and when it is better not to risk it.
Primary diagnosis: why the motor-compressor is silent
The first thing to do if Indesit refrigerator does not make any sounds, check the presence of voltage in the network. Sometimes the problem lies not in the equipment, but in the outlet or surge protector. Try connecting another device, such as a lamp or hair dryer, to the same outlet to make sure the electrical circuit is working properly. If the socket is working, listen carefully to the unit: does it make any clicks or hums.
The absence of sound when the refrigerator is plugged in often indicates that starting relay does not give a signal to start the engine, or the engine itself has burned out. If you hear a quiet hum that ends abruptly after a few seconds, followed by a clicking sound, this is a classic symptom of a starting attempt. The motor tries to start, but due to high resistance or a mechanical wedge compressor it cannot gain speed, and the thermal relay turns off the power to avoid a fire.
It is also important to check the thermostat settings. Perhaps someone in the household accidentally moved the knob to the “0” or “Off” position. In some models Indesit with electronic control, the operating mode may have been lost or the demonstration function (Demo mode) may have been activated. Try changing the temperature to the minimum values and wait 10-15 minutes. If during this time compressor does not start, the problem is technical.
⚠️ Attention: If, after connecting to the network, you hear a burning smell or see sparking in the rear wall area, immediately disconnect the device from the power supply! Further attempts to start may result in a short circuit or fire in the wiring.
Diagnostics must be consistent. You should not immediately disassemble the unit if you are not convinced of the simplest things. Check the integrity of the power cord and that there are no kinks or melts on the plug. If everything is visually intact, but the refrigerator is still silent, you will have to move on to a deeper analysis of the components.
Faults in the start-up relay and thermostat
One of the most common reasons why the refrigerator does not turn onis the output the start relay is faulty. This small black or white box, attached to the compressor housing, is responsible for supplying a starting pulse to the motor winding. Over time, the contacts inside the relay oxidize or burn, and the coil loses its properties. As a result, the circuit does not close and the motor remains motionless.
To check the relay, it must be removed. Carefully disconnect the wires and remove the part from the compressor rod. Shake the relay near your ear: if a rattling sound is heard inside, it means the core is broken and the part requires replacement. Also inspect the contacts for carbon deposits. If you notice black spots or melted plastic, relay replacement it is inevitable. Fortunately, they are inexpensive and are often sold complete with a thermal protector.
The second common reason is a faulty thermostat (thermostat). It is he who gives the command to turn on the compressor when the temperature in the chamber rises above the set one. If the contacts inside the thermostat are stuck open or burned out, the signal simply does not reach the engine. In refrigerators with mechanical controls, you can check the thermostat by short-circuiting the wires going to it directly (after disconnecting the device from the network!). If the compressor starts working after a short circuit, the thermostat is to blame.
- 🔌 Start relay: It often fails due to voltage surges or natural wear of the contacts, requiring replacement if there are cracks or a burning smell.
- 🌡️ Thermostat: If it breaks, it breaks the compressor power supply circuit, even if the chamber is warm; checked by checking the contacts.
- ⚡ Thermal relay: Protects the motor from overheating; if activated frequently, it can become deformed and stop passing current.
In modern models Indesit No Frost instead of a classic thermostat, an air sensor can be used. Checking it requires a multimeter: it is necessary to measure the resistance at different temperatures. If the readings do not change or the resistance is infinite, the sensor is faulty. Replacing such elements requires partial disassembly of the internal panel of the refrigerator.
☑️ Diagnostics of the relay and thermostat
Problems with the motor-compressor: wedge or winding
If the starting relay and thermostat are working properly, but Indesit refrigerator still does not turn on, suspicion falls on itself compressor. This is the “heart” of the unit, and its breakdowns are divided into two main types: electrical breakdown of the windings and mechanical wedge. In the first case, the engine hums, but does not start, or does not make any sounds at all if there is an open circuit.
Checking the windings is done using a multimeter in resistance measurement mode. It is necessary to remove the start relay and measure the resistance between the contacts at the compressor terminals. The normal resistance of the working winding is usually 10-30 Ohms, the starting winding is 30-50 Ohms. The resistance between the housing and any of the contacts must be infinite. If the device shows zero or a very low value, then interturn short circuithas happened, and the compressor requires replacement.
A mechanical wedge is a more complex situation. The motor hums, tries to start, the relay clicks, but the motor shaft is jammed. This often happens after long periods of inactivity or due to oil burnout. There is a “folk” method of resuscitation using a step-up transformer, but it is dangerous and requires qualifications. At home, it is safer to immediately recognize the need to replace the unit.
| Symptom | Probable cause | Winding resistance | Solution |
|---|---|---|---|
| Silence, no humming | Open circuit, burnt winding | Infinity (∞) | Replacing the compressor |
| Humming and clicking | Mechanical wedge or weak relay | Normal (10-50 Ohm) | Replacing the relay or compressor |
| Protection is triggered | Interturn short circuit | Below normal | Urgent motor replacement |
| Sparking in the relay | Burning of relay contacts | Normal | Replacement of the starter relay |
⚠️ Attention: Attempts to start a jammed compressor by applying increased voltage without experience can lead to an explosion of the refrigerant cylinder or a fire. If you are not confident in your abilities, stop at the diagnostic stage.
Replacing a compressor is a complex process that requires a vacuum pump, a pressure gauge station, and skills in soldering copper pipes. It is almost impossible to perform this operation independently without special equipment. Therefore, if the diagnosis is confirmed, it is more rational to contact a service center.
Is it possible to replace the compressor with an analogue?
Yes, you can install a compressor of a different brand (for example, Danfoss or Embraco) if the overall dimensions, power and type of refrigerant are the same. However, this requires reconfiguring the thermal relay and often re-cooking the pipelines, since the diameters of the tubes may differ.
Freon leakage and blockage of the system
There are cases when the refrigerator seems to turn on: the motor is running, heating up, but there is no cold in the chambers, or it appears very weakly. This is often accompanied by the compressor running non-stop. However, in some situations, especially in models with a system No Frost, if there is a strong leak or complete blockage of the capillary tube, the compressor may not start at all due to current protection or a command from the electronics.
Leak of refrigerant (freon) - a common problem. Freon circulates in a closed circuit, and if a microcrack has formed somewhere (often in the foamed part of the body or at the joints), the gas evaporates. Without sufficient pressure cooling system it does not work. It is difficult to detect a leak visually, but you may notice oily spots under the refrigerator or on the pipes in the back. Also a sign of a leak is swelling of the side walls of the refrigerator.
Clogging of the capillary tube occurs due to moisture entering the system or the formation of a paraffin plug. In this case, the compressor cannot push freon through the narrow hole, the outlet pressure rises sharply, and thermal protection is triggered. The motor hums for a few minutes and turns off. Restart occurs only after complete cooling.
- 💨 Signs of a leak: The refrigerator does not freeze, the condenser (grid at the back) is only partially cold or warm, traces of oil are possible.
- 🧊 Symptoms of blockage: The compressor runs jerkily, one part of the condenser is hot, the other is cold, you can hear gurgling.
- 🔧 Repair: Requires searching for the leak, soldering, evacuation of the system and refilling with new freon.
To eliminate these malfunctions, you need to call a technician. It is necessary to find the location of the damage, seal it, replace the filter drier, pump out the air with a vacuum pump and charge the system with the exact amount of refrigerant indicated on the nameplate (usually R600a or R134a). Self-refueling “by eye” will lead to quick breakdown of the compressor.
Failures in the electronic control module
In modern refrigerators Indesit with an electronic control system, it is not the mechanical thermostat that is responsible for starting the compressor, but the electronic module (control board). If The refrigerator does not turn onand all mechanical components are working properly, the problem may lie in the “brains” of the device. The board could burn out due to a power surge, oxidation of contacts, or moisture ingress.
Diagnostics of the module at home is limited to visual inspection. Remove the top cover of the refrigerator (where the circuit board is usually located) and inspect it. Look for blackened traces, swollen capacitors, or signs of burning. If there are no visual defects, this does not guarantee serviceability: microcircuits or relays on the board could have burned out, which can only be seen under a microscope or based on the results of a “test” of the components.
Sometimes the problem is solved by rebooting the module. To do this, you need to completely turn off the power to the refrigerator by unplugging the plug from the socket for 15-20 minutes. Then turn it on again. If the compressor starts, there may be a software glitch. If the situation repeats, it will be necessary module replacement or its professional repair in a specialized workshop.
It is worth noting that in some models the control module can block the start of the compressor if it receives incorrect data from other sensors (for example, a defrost sensor or a door open sensor). Therefore, before replacing the board, it is worth checking them too.
⚠️ Attention: Electronic modules are sensitive to static electricity. Do not touch the microcircuits with bare hands without an antistatic wrist strap, so as not to aggravate the breakdown.
When you need to call a professional technician
Despite the desire to save money, it is important to understand the limits of your capabilities. Refrigerator repair doing it yourself is justified when replacing a relay, thermostat or sensors. However, there are situations when the intervention of an unqualified person will lead to several times more expensive repairs.
First of all, this is any work related to refrigerant. Opening the circuit, soldering tubes, vacuuming and filling require a license and expensive equipment. In addition, freon can be dangerous if not handled correctly. Secondly, if the compressor itself burns out, replacing it at home without a pump is impossible.
It is also worth contacting a professional if you do not have experience working with electricity and a multimeter. Misdiagnosis can lead to the purchase of unnecessary parts or, worse, electric shock. The technician will conduct a full diagnostic, including checking the pressure in the system and the tightness of the circuit, which is impossible to do at home.
How much does the diagnostic cost?
The cost of diagnostics usually varies and is often deducted from the cost of subsequent repairs if you agree to it. On average, a technician's visit and diagnostics cost from 500 to 1,500 rubles, depending on the region and the complexity of the work.
FAQ: Frequently asked questions
Why does the Indesit refrigerator hum, but does not freeze?
Most likely, there is a freon leak or is clogged capillary tube. The compressor idles, trying to pump the refrigerant, but there is no circulation. It is necessary to search for leaks and refill the system.
Is it possible to operate the refrigerator if the compressor does not work?
For a short time - yes, if you defrost it. But you cannot keep it plugged in for a long time when the compressor is not working (if it is humming and heating up), as this will lead to burnout of the motor windings. If it is simply silent, there is no risk, but the products will spoil.
How often do you need to change the starting relay?
The starting relay is a resource part. It does not have a specific service life and is replaced only when it breaks. On average, it lasts 5-10 years, but it can fail even earlier due to unstable voltage in the network.
Is it true that an inverter compressor cannot be repaired?
Inverter compressors are really more difficult to diagnose and more often require a complete replacement of the unit if it breaks, since they are integrated with electronics. However, repair is possible if it is not the motor itself that is faulty, but the control board or sensors.