The situation when you go to the refrigerator, open the door, see a light bulb, But being warm inside is one of the most stressful things for any homeowner. This is a classic symptom indicating that electric circuit reaches the device, but the cooling system does not start. In contrast to the complete absence of signs of life, when the refrigerator is silent, the presence of light narrows the scope of troubleshooting, but does not make it simple.
Brand appliances Indesit are famous for their maintainability, but even reliable units can fail. Owners often mistakenly believe that since the light bulb works, it means that the motor is also working, it’s just “got hay.” This is a dangerous misconception: the light is powered by one part of the wiring, and a complex one is responsible for cooling. Ignoring the problem in the first hours can lead to damage to a large supply of food. compressor-condenser unit. Ignoring the problem in the first hours can lead to spoilage of a large stock of food.
In this material we will analyze in detail why the Indesit refrigerator stopped cooling, consider typical breakdowns and ways to eliminate them. You don't have to be an engineer to perform initial diagnostics. We will go from simple actions that can be done in a minute to complex technical faults that require the intervention of a specialist.
Primary diagnosis and simple causes
Before looking for complex breakdowns, it is necessary to exclude banal human errors or external factors. Often the reason that the refrigerator has stopped freezing lies in improper operation or settings failure. If the unit is working, but the temperature inside the chamber does not drop below +10...+15 degrees, check whether the operating mode was accidentally reset.
In modern models Indesit with electronic control, a power surge could occur that reset the controller settings. It is also worth checking the tightness of the door. If the rubber seal is dirty or deformed, warm air constantly flows inside, and the compressor simply does not have time to cool the chamber, even working continuously.
⚠️ Attention: If you notice that the door does not close tightly, do not try to slam it by force. This may damage the hinges or the seal itself. Check if anything is preventing the closing - for example, the edge of a shelf or a bag of groceries.
Another important point is the placement of equipment. If the refrigerator is located close to the wall or in a niche without gaps, it breaks air circulation around the condenser (black grille at the back). This leads to overheating and automatic shutdown of the motor to protect against combustion.
For a quick check, follow these steps:
- 🔌 Check whether the plug is firmly inserted into the socket and whether there is voltage in the network.
- 🌡️ Make sure that the thermostat is not unscrewed to the minimum (value 0 or Min).
- 🚪 Inspect the door for distortions and check the cleanliness of the seal.
- ❄️ Let the equipment stand turned off for 15-20 minutes if it has just been defrosted or rearranged.
Malfunctions of the thermostat and sensors
One of the most common reasons why the Indesit refrigerator hums, the light is on, but does not freeze, is the exit from building thermostat (thermostat). This small device is responsible for turning the compressor on and off depending on the temperature inside the chamber. If its contacts have oxidized or the membrane has lost its sensesactivity, the signal to start the engine simply does not arrive.
In models with the system No Frost electronic sensors are responsible for the temperature regime (thermistors). They transmit data to the control module. If one of the sensors “lies” or the circuit breaks, the “brain” of the refrigerator may assume that the temperature is normal and not start cooling. Diagnosis of such elements requires the use of a multimeter to measure resistance.
Signs of a malfunctioning thermostat:
- 🔇 The compressor is silent, although the chamber is warm, and the light is on.
- 🔄 The motor runs without stopping, but there is no cold (if the contacts are “stuck” in a closed condition, but this is rare for a complete absence of cold).
- ⚡ There is no characteristic click when turning the control knob.
Replacing the thermostat in mechanical models is a relatively simple procedure. However, in electronic systems Indesit the control module itself often requires flashing or replacement if it incorrectly interprets the readings of working sensors.
How to check a thermostat with a multimeter?
To check a mechanical thermostat, you need to remove it, immerse the capillary tube in cold water with ice and ring the contacts. If the resistance does not change during cooling (break), the part is faulty.
Problems with the start relay and compressor
If you hear the refrigerator trying to start (a hum or click is heard), but after a few seconds there is a click and silence, the problem lies in start relay or the compressor itself. A relay is a small block that provides an impulse to start the engine. Over time, its contacts burn out, or the mechanism jams.
The compressor is the “heart” of the refrigerator. In technology Indesit reliable motors are often used, but they are sensitive to voltage drops. If a surge occurred, the motor winding could burn out. In this case, the refrigerator consumes current, the light is on, but the pistons do not rotate mechanically. You can identify a burnt winding by the characteristic burning smell or black color of the oil (when opening the system).
⚠️ Attention: Replacing the compressor yourself requires special equipment for vacuuming the system and charging with freon. This work cannot be done without skills and tools.
The starting relay is often the first to fail. This is a consumable item. If, when you shake the removed relay, you hear the sound of a rattling ball inside, then the mechanism is destroyed. Replacing the relay is a matter of five minutes and is inexpensive, which makes this breakdown one of the most favorable for the owner.
Comparison of symptoms of motor group malfunctions:
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Silence, light on | Faulty start relay or thermostat | Low |
| Humming for 5-10 seconds, then clicking | Stuck compressor or burnt out winding | High |
| The motor runs constantly, there is no cold | Freon leak or capillary clogged | Medium/High |
☑️ Diagnostics motor
Refrigerant leak and capillary system clogged
If the compressor runs smoothly, non-stop, hums, 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 it has occurred freon leak. The refrigerant circulates in a closed circuit, and if a microcrack appears in the tube, the gas evaporates and cooling stops.
The second option is clogged capillary tube. An ice lump (moisture) or blockage with oil breakdown products may have formed in the system. In this case, there is freon, but it cannot circulate. The compressor tries to pump gas, but encounters resistance, which is often accompanied by a change in the sound of the motor.
Signs of problems with the refrigerant:
- 🧊 The evaporator inside the chamber is covered with an uneven layer of frost or clean.
- 🌡️ The condenser grille at the back is cold or warm only at the entrance/exit.
- 🔊 The compressor works almost without interruption.
Eliminating a leak requires finding the location of the damage (often this occurs in the foamed part of the case or in solder areas), sealing and then refilling the system. It is almost impossible to find a leak on your own without a leak detector.
Failures in the electronic control module
Modern refrigerators Indesit equipped with sophisticated electronics. If the light is on, it means that voltage is coming to the board, but control signals may not be generated. A burnt triac on the board, oxidized tracks or a software failure can block the compressor from starting.
Often the control module fails after a thunderstorm or unstable operation of the electrical network. Visually, traces of burning, swollen capacitors or black deposits may be visible on the board. However, sometimes the board looks perfectly clean, but does not work.
Module diagnostics require special knowledge in electronics. The master can “ring” the compressor power circuit at the output of the board. If the command is given, but the motor does not start, the problem is in the motor. If there is no command, the module is faulty. Repairing the board is possible, but it is often cheaper and more reliable to replace it entirely with a new or refurbished one.
⚠️ Attention: Before replacing or checking the electronic module, be sure to completely turn off the power to the refrigerator. Working with electronics under voltage is deadly and is guaranteed to lead to the final failure of the board.
Specifics of two-compressor models
In two-chamber refrigerators Indesit with two compressors, the situation is simplified in terms of diagnostics. If only one chamber (for example, a freezer) does not freeze, but everything is fine in the refrigerator, then the problem is localized in the circuit of the non-working chamber. This could be your thermostat, your relay or your compressor.
If both compressors stopped working at the same time, which is extremely rare, then the problem is most likely a common one: lack of voltage in the outlet (although the light could come on from residual current or through another phase in rare cases) or a global power surge that killed both motors.
In models with one compressor and system No Frost a frequent problem is a malfunction of defrost timer or the evaporator heating element. If the evaporator becomes overgrown with a “coat” of ice, the air stops circulating and the chamber becomes warm, although the compressor is working properly. In this case, defrosting and checking the elements of the defrosting system are required.
When to call a specialist, and when you can do it yourself
Refrigerator repair is a balance between savings and risk. Replacing a light bulb, adjusting legs, cleaning a drain hole, or replacing a thermostat on a manual model are tasks that most men can handle with a basic set of tools. These actions do not require breaking the tightness of the circuit.
However, if we are talking about filling with freonsoldering copper tubes, replacing a compressor or repairing an electronic board, it is better to turn to professionals. Incorrect refueling will lead to rapid failure of the new compressor, and poor-quality soldering will lead to repeated leakage in a month.
It is worth thinking about calling a specialist if:
- 🛠️ The use of welding or vacuum is required pump.
- 🔌 The problem is in the electronic control module (accurate diagnosis is needed).
- 🧊 There is a refrigerant leak (you need to find a place and fill it).
- 🔇 The compressor hums, but does not start (risk jamming).
Remember that a professional technician will not only fix the breakdown, but will also give a guarantee for his work. This is more important than saving a small amount on an independent but risky repair of a complex unit.
Frequently asked questions (FAQ)
Why does the Indesit refrigerator turn on for 5 seconds and turn off?
This is a classic sign of a faulty start relay or problems with the compressor. The relay tries to start the motor, the current increases sharply, the thermal protection is triggered, and the system turns off. Relay replacement or diagnostics of motor windings is required.
Is it possible to operate the refrigerator if it does not freeze, but the light is on?
For a short time - yes, to unload food. But you can’t keep it turned on in this mode for a long time. The compressor will wear out (if it turns on), which will lead to its overheating and final breakdown, as well as damage to the wiring.
How much does it cost to repair if the cooling does not work?
The cost depends on the unit. Replacing a thermostat or relay is a low-cost repair. Filling with freon, eliminating a leak, or replacing a compressor falls into the category of medium and expensive repairs, as they require expensive materials and complex equipment.