The situation when your loved one Indesit refrigerator stops freezing always takes you by surprise. Products begin to deteriorate, and an unpleasant odor appears inside the chambers or, conversely, complete silence where the hum of the compressor should be heard. Most often, the cause of such symptoms is banal refrigerant leak from the system. This does not always mean a breakdown of the compressor itself; often the problem lies in microcracks in the tubes or poor-quality factory soldering.
Understanding this how to find a leakwill allow you to save time and money on calling a specialist for initial diagnostics. In brand refrigerators Indesit, especially in models with the No Frost system, the contours may be hidden behind the panels, which complicates visual inspection. However, there are proven methods that allow you to localize the place of gas release even without complex equipment.
In this article we will analyze the main signs of system depressurization, consider search tools and draw up an action plan. Circuit tightness is the key to long-term operation of the compressor, so the problem cannot be ignored. If you notice that the equipment is working “for wear”, but does not provide cold, it’s time to sound the alarm.
Main signs of loss of system tightness
The first and most obvious signal that data-i="58">evaporates, is a change in temperature. You may notice that food is melting in the main chamber, and porridge forms in the freezer instead of solid ice. In this case, the compressor can work almost without stopping, trying to compensate for the lack of cold, or, conversely, remain silent if the thermal protection has tripped. freon evaporates, is a change in temperature. You may notice that food is melting in the main chamber, and porridge forms in the freezer instead of solid ice. In this case, the compressor can work almost non-stop, trying to compensate for the lack of cold, or, conversely, remain silent if the thermal protection has tripped.
Pay attention to condenser grillelocated at the back of the unit. In good condition, it should be evenly warm or hot (depending on the model). If you touch the grille and it is cold, although the engine is humming, this is a sure sign that refrigerant he has gone somewhere. It is also worth listening: a hissing sound may indicate an active release of gas under pressure.
⚠️ Attention: If you smell a specific chemical odor, ventilate the room immediately. Although modern freon is often odorless, added compressor oils can deteriorate when exposed to air.
Another indirect sign is the evaporator swelling (evaporator) inside the freezer if you have a model with manual defrosting. In No Frost systems, problems may be indicated by frost in only one corner of the chamber, while the rest of the chamber remains warm. Cold localization is a key point in troubleshooting.
Visual inspection and preparation for diagnosis
Before grabbing the tools, it is necessary to conduct a thorough visual inspection accessible parts of the refrigerator. Move Indesit away from the wall, providing access to the rear wall. Look for traces of oil: since freon circulates along with oil to lubricate the compressor, the leak site often “cries” with black greasy spots.
Pay special attention to the soldering areas of copper tubes and connections to the filter drier. This is where microcracks most often occur due to vibration or corrosion. If you find oily stains on compressor or in the lower part of the unit, the probability of a leak in this unit is more than 80%.
For a good inspection, you may need a good light source, as shadows can hide defects. It is also worth removing the lower plastic panel, behind which the compressor compartment is hidden, if the design of your model allows for this. Cleanliness in the inspection area is a prerequisite for successful diagnosis. Indesit this provides. Cleanliness in the inspection area is a prerequisite for successful diagnosis.
Checking pressure and searching with a soap solution
If a visual inspection does not produce results, you will have to move on to more active methods. To do this, you will need pressure gauge station a cylinder with nitrogen or dry air. The first step is to carefully disconnect the capillary tube or service fitting to gain access to the system. This requires care not to damage the thin copper elements.
After connecting the pressure gauge, the system is pumped up with pressure up to 6-8 atmospheres. If the pressure gauge needle begins to creep down, it means depressurization confirmed. Now comes the good old soapy solution. Apply thick soapy foam with a brush to all suspicious connections, seams and pipes.
☑️ Preparing for a pressure test
At the point where the gas escapes, the soap film will begin to swell into a bubble. This method is effective for large cracks. However, if the leak is microscopic, the bubble may not inflate immediately. In such cases, you need to carefully observe the surface for several minutes, waiting for the characteristic “eye” to appear.
⚠️ Attention: Never use regular air from a car compressor without filtration to blow through the system. Moisture contained in the air can freeze in the capillary and completely kill the refrigerator.
Using an electronic leak detector
For professional diagnostics, technicians often use electronic leak detector. This device is capable of detecting even minimal concentrations of gas in the air. If you plan to repair equipment Indesit regularly, purchasing such a device will be a wise investment. It reacts to halogen compounds by emitting a sound signal.
The principle of operation is simple: you slowly move the probe of the device along all connections and seams. As you approach the leak, the frequency of the sound signals increases. This allows you to find a defect even in hard-to-reach places hidden behind thermal insulation or plastic panels, where a soap bubble simply will not be visible.
Therefore, before searching, the room needs to be well ventilated to exclude false positives. Move the probe slowly, at a speed of no more than 2-3 cm per second.
Why may the leak detector be silent?
If there is very little freon left in the system or the pressure has dropped to atmospheric, the gas may not come out with sufficient force. In this case, the system must first be (pumped) with an inert gas with the addition of a small dose of freon for detection.
Comparative table of symptoms and causes
To systematize the knowledge gained, we suggest referring to the table. It will help you compare the signs you observe with the most likely causes of malfunctions in refrigerators Indesit.
| Symptom | Probable cause | Test method | Difficulty of repair |
|---|---|---|---|
| The compressor hums, but does not turn off | Freon leak or clogged capillary | Checking the pressure with a pressure gauge | High |
| Oil stains at the back | Microcrack in the circuit | Visual inspection + soap solution | Medium |
| Bloating of the rear wall in the chamber | Evaporator corrosion | Disassembling the internal panel | High |
| Cold only at (evaporator) | Lack of refrigerant | Thermal imager or tactile | Average |
As can be seen from the table, most symptoms indicate the need for serious intervention. Replacing the evaporator or finding a breakdown in a foamed circuit is a task for an experienced craftsman with soldering equipment and a vacuum pump.
You shouldn’t try to just “add freon.” If there is a hole, the gas will come out again in a week or a month. It is critically important to first find and solder the leak, and only then refill the system. Otherwise, you will simply waste money on gas.
Specific search in models No Frost and with foam circuit
In modern models Indesit No Frost the situation is complicated by the fact that part of the circuit (capacitor) is often built into the walls of the case. If the leak occurs right there, you won't see any oil stains or bubbles. In such cases, the diagnosis is made by exclusion: if everything is intact on the outside, but there is no pressure, there is a breakdown in the housing.
To diagnose hidden circuits, it is sometimes necessary to open the thermal insulation foam, which is a labor-intensive and dirty process. Craftsmen often use the “clamping” method: they sequentially cut off sections of the circuit and check whether the system holds pressure in the remaining part. This allows you to localize the area, but requires a complete recharge and often the installation of an external condenser.
Owners of such models should be especially attentive to the service life of the equipment. After 7-10 years of operation, the likelihood of corrosion of internal tubes in the walls increases sharply. Resource of foamed circuits is limited, and this must be taken into account when purchasing used equipment or planning a budget for repairs.
Frequent errors when searching independently
Trying to save money, beginners often make mistakes that only aggravate the situation. For example, trying to find a leak without unplugging the refrigerator may result in a short circuit if soapy water gets on the contacts. Always follow safety precautions when working with electrical appliances.
Another common mistake is using water for testing instead of a soap solution. The water will simply drain without forming a bubble, and you will miss the defect. Also, you should not use aggressive chemicals to clean the tubes before testing; it can itself provoke corrosion and a new leak in a weak spot.
⚠️ Attention: Design details and location of components may differ in different Indesit models. Always check the technical documentation of a specific series before disassembling.
And lastly: do not ignore the condition filter-drier. Any depressurization causes moisture and air to enter the system. If you find and seal a hole, but do not replace the filter, after some time the moisture will turn into an ice plug in the capillary, and the refrigerator will stop freezing again.
Is it possible to detect a freon leak by smell?
Freon itself (R600a, R134a), used in modern Indesit refrigerators, has no odor. However, along with it, compressor oil leaves the system, which may have a specific odor. You should not rely only on your sense of smell, since the smell of oil can be barely noticeable or masked by the smells of food in the kitchen.
How much does it cost to find and fix a leak?
The cost depends on the difficulty of access to the breakdown site. If the leak is in an accessible location (at the rear), repairs will be cheaper. If the breakdown is in a foamed circuit (in the walls), it is often necessary to install an external radiator-condenser, which is much more expensive and labor-intensive. Only a specialist can give the exact price after diagnostics.
Does it make sense to repair an old Indesit refrigerator if there is a leak?
If the refrigerator is more than 10-12 years old and the leak occurred in a foamed circuit, the economic feasibility of the repair is questionable. The cost of work and materials can be 50-70% of the price of new equipment. For young models, repairs are certainly beneficial.
Why did the refrigerator stop freezing again after a month after refilling with freon?
This is a classic sign that the leak was not found and repaired. The master simply “blowed out” a new portion of gas, which gradually came out through the same crack. High-quality repairs always begin with searching and soldering the defect, and end with vacuuming and refilling.