The situation when your Indesit refrigerator suddenly stopped freezing always takes you by surprise. Products begin to deteriorate, and water appears on the shelves or, conversely, the cold disappears. This is a common problem faced by owners of equipment with both a drip defrosting system and more modern No Frost models. Primary panic is understandable, but specific behavior and consistent diagnostics will help determine the scale of the disaster and, perhaps, avoid an expensive call to the repairman.
First of all, you need to understand the nature of the malfunction: the equipment does not turn on at all, it works continuously, but does not cool, or it turns on only for a short time. Indesit is a reliable brand, but it has its own “weak points”, characteristic of different production series. In this article, we will analyze in detail the mechanical and electrical causes of failure so that you can carry out initial diagnostics yourself.
It is important not to ignore the first symptoms, such as extraneous noise or rare engine startup. Timely detection problems can often be eliminated at minimal cost. Next, we will move on to specific steps of checking and analyzing components that require your attention.
Primary diagnosis: why the compressor does not work
The very first and obvious step is to listen to the operation of the unit. If compressor it is silent, but the light is on inside, the problem may lie in basic things. Users often forget that the equipment could simply turn off due to a power surge or accidentally pulling out the plug. Check the tightness of the power cord to the outlet and make sure that there is current in the outlet itself.
If there is power, but the motor hums, clicks and immediately turns off, this is a sign of a starting attempt, which is blocked by the protection. In such cases, it is often to blame starting relay, which is responsible for starting the engine. It could burn out or stick. It is also worth checking the thermostat: if it is “stuck” in the “off” position or is simply out of order, the signal to start the compressor is simply not received.
⚠️ Attention: If you hear a loud crackling sound or a burning smell when you try to turn it on, immediately unplug the device. Continuing operation in this mode can lead to complete combustion of the motor windings.
In some models with electronic control, failure to start may indicate a failure in control module. The system may have frozen or received a sensor error. Try a hard reset: unplug the refrigerator for 15-20 minutes, and then turn it on again. This action often helps to reboot the “brains” of the device.
Problems with the defrosting system in No Frost models
If your Indesit No Frost hums, the compressor works, but there is no cold, and on the back wall a thick layer of ice is visible in the freezer or, conversely, it is dry and warm there - the problem is in the defrosting system. In such units, the cold is pumped by a fan, and if the evaporator is covered with ice, the air does not circulate. The main culprits here are: defrost heating element, defrost sensor or timer (in mechanical models).
The most common breakdown is - heating element burnout. The heating element stops heating, the ice does not melt, and after a while the “fur coat” blocks the air supply channels. Diagnostics requires testing with a multimeter. It is also worth checking the drainage hole: if it is clogged with food debris or ice, the water does not drain, freezes and turns into an ice plug that interferes with the operation of the system.
- 🧊 Evaporator heating element: Check the integrity of the coil, it often burns out due to corrosion or power surges.
- 💧 Temperature sensor: It gives the command to turn the heating on and off; if it “lies”, the defrost cycle will not start.
- ⏱️ Timer or board: Responsible for switching the “cooling” and “defrosting” modes.
How to check the heating element without a multimeter?
Visually inspect the heating element for obvious tears, blackening or swelling. However, the most accurate result is obtained only by testing the tester in resistance measurement mode. If the device shows infinity, the element is faulty.
Freon leakage: signs and consequences
When Indesit refrigerator works without stopping, the compressor is hot, but the temperature inside is close to room temperature, there is a high probability of refrigerant leakage. Freon is a substance that circulates through the system, picking up heat. If the tightness of the circuit is broken (due to corrosion, mechanical damage or manufacturing defects), the gas evaporates and cooling becomes impossible.
It is difficult to determine the leak visually, since the gas is colorless and odorless. However, there are indirect signs: swelling of the inner wall of the refrigerator compartment (especially in models with a weeping evaporator), lack of heating of the condenser grille at the back, or uneven cooling (the freezer works, but the upper chamber does not). Modern models often use a foamed evaporator, and its breakdown requires complex repairs with the installation of an external circuit.
| Symptom | Probable cause | Necessary actions |
|---|---|---|
| The compressor is hot, there is no cold | Freon leak or blockage | Call a technician to find a leak |
| Ice only at the back wall | Faulty sensor or heating element | Replacing elements of the defrost system |
| The motor turns on for 1 minute | Faulty start relay | Replacing the compressor relay |
| Water on the floor under the refrigerator | Drainage clogged or hose displaced | Cleaning the drainage hole |
Trying to fill the refrigerator with freon yourself without eliminating the cause of the leak is a waste of money. Gas will escape again through the same hole within a few days or weeks. Therefore, finding the location of the leak is a priority for a specialist.
Malfunctions of the thermostat and sensors
The thermostat (thermostat) is the “conductor” of the refrigerator. It measures the temperature inside the chambers and commands the compressor to turn on or off. If this mechanism fails, the refrigerator may either freeze until blocks of ice form or may not start at all. In models Indesit there are often mechanical thermostats with a capillary tube that is inserted into the evaporator.
Over time, the contacts inside the thermostat burn out, or the capillary tube loses sensitivity. In electronic control, the role of a thermostat is performed temperature sensors (NTC). They can give incorrect resistance readings, which is why the control board “thinks” that there is already cold and does not turn on the motor. Replacing the sensor is a simple procedure, but requires selecting an element with similar characteristics.
☑️ Checking the thermostat
If you notice that the refrigerator has started to turn on less often than usual or, conversely, is working without interruptions, first of all “sin” this unit. Sometimes temporary adjustment helps: try turning the thermostat knob to its extreme positions. If there is no click and the motor does not respond, the part definitely requires replacement.
Clogged capillary tube and compressor operation
Another technical reason why refrigerator stops freezing - this is a clog in the capillary tube. Not only freon circulates inside the system, but also special oil for lubricating the compressor. Over time, especially if the equipment has been idle for a long time or has been refilled poorly, the oil can thicken or mix with decomposition products, forming a plug.
When clogged, the compressor works with increased load, trying to push the refrigerant, gets very hot and eventually turns off due to thermal protection. A characteristic sign is that the condenser (grid at the back) is hot only halfway or up to the point of blockage, and then the tube is cold. It is almost impossible to eliminate this defect on your own; you need to flush the system with nitrogen and replace the filter-drier.
⚠️ Attention: Never try to break through the blockage by increasing pressure or using aggressive liquids. This can lead to rupture of the tubes and complete failure of the system.
Often the blockage is accompanied by a change in the sound of the motor. It becomes more tense, the buzzing intensifies. If you hear such changes, it is better not to delay contacting service, since prolonged operation in this mode quickly “kills” the compressor itself.
Mechanical damage and wear of seals
Sometimes the reason for the lack of cold is trivial and lies in a violation of the chamber seal. Rubber seal doors dry out over time, crack or become deformed. Through the resulting cracks, warm air from the room constantly enters the chamber. The compressor tries to compensate for heat loss and works around the clock, but does not have time to reach the desired temperature.
You can check the seal with a simple test with a sheet of paper. Clamp the sheet with the door in different places around the perimeter. If the paper comes out too easily or falls out on its own, the seal is broken. It is also worth checking the door hinges: if they are skewed, the door will not fit tightly even with a new seal. Adjusting the hinges often solves the problem without replacing the rubber.
Mechanical damage also includes dents on the body that could pinch the circuit tubes, or the consequences of careless defrosting with a knife when the evaporator was pierced. In the latter case, repairs are often not economically feasible.
Frequently asked questions and answers (FAQ)
Why does the Indesit refrigerator only freeze in the freezer, but is it warm in the refrigerator?
Most often this indicates a freon leak or a clogged capillary system. The refrigerator is working hard, but the gas resource is only enough for a small freezer volume. There may also be a malfunction of the air supply damper (in No Frost models).
How long should a new refrigerator cool down after turning it on?
Usually, reaching operating temperature takes from 2 to 6 hours, depending on the model and the ambient temperature in the room. If after 8 hours of operation of the compressor the cold does not appear, then there is a malfunction.
Is it possible to replace the compressor on an Indesit refrigerator yourself?
Theoretically, it is possible if you have the skills to work with soldering copper tubes and vacuuming the system. However, without special equipment (vacuum pump, pressure gauge station), it is impossible to efficiently replace and refill with freon.
What to do if ice has frozen and the refrigerator has stopped freezing?
It is necessary to completely defrost it. Unplug the appliance, open the doors and leave for at least 24 hours (preferably two days). If after switching on the cold appears, but after a week it disappears again, the problem is in the defrosting system (heating element, sensor, timer).