Sudden detection of deformation of the housing of a household appliance is always stressful for the owner. If you notice that it is not working, this indicates serious internal processes, which, if ignored, can lead to complete breakdown of the unit. Most often, the problem lies in a violation of the tightness of the system or damage to the thermal insulation layer, which requires immediate intervention. the wall of the refrigerator is swollen, this signals serious internal processes, which, if ignored, can lead to complete breakdown of the unit. Most often, the problem lies in a violation of the tightness of the system or damage to the thermal insulation layer, which requires immediate intervention.
Deformation can be caused by both mechanical stress and natural aging of materials or manufacturing defects. In some cases, the bulge appears due to the expansion of gases inside the structure, in others - due to the loss of insulation properties. Understanding the root cause will help you make the right decision: call a specialist or try to fix the defect yourself.
In this article we will analyze in detail all possible scenarios, from simple problems with the seal to difficult cases with freon. You will learn what tools you will need for diagnostics and how to prevent further destruction of the body of your refrigeration equipment refrigeration equipment.
Design features and vulnerabilities
A modern refrigerator is a complex engineering system, where each element performs a critical function. The body consists of an outer metal sheet, an inner plastic box and the space between them, filled polyurethane foam. It is this insulation that not only retains cold, but also gives rigidity to the structure.
Any violation of the integrity of the outer shell or inner layer can lead to a change in pressure inside the “sandwich”. If the wall begins to bulge, this often means that it has lost its properties or air has entered the system. In older models with a metal rear wall, the risk of deformation is higher due to corrosion. thermal insulation has lost its properties or air has entered the system. In older models with a metal back wall, the risk of deformation is higher due to corrosion.
Particular attention should be paid to the areas where the compressor and evaporator are attached. Vibrations that occur during engine operation can over time weaken fasteners or break the tightness of seams. Metal sheet in such places it experiences the greatest load.
Why are the side walls more often deformed?
Side panels of refrigerators often thinner than the rear and front ones, since they do not support heavy equipment. In addition, it is the sidewalls that are most often exposed to mechanical stress when moving furniture or careless operation.
Main causes of swelling of the side walls
There are several key factors leading to deformation of the body. The most common reason is a violation of foaming technology during production. If there are voids left in the layer, moisture can penetrate there, which expands when freezing and pushes the wall out. polyurethane foam There are voids left, moisture can penetrate there, which, when freezing, expands and pushes the wall out.
The second important factor is thermal expansion. In case of sudden voltage surges or problems with the thermostat, the temperature inside the chamber may increase, causing expansion of gases in the insulating layer. Plastic liner does not withstand pressure and is deformed.
Mechanical damage also cannot be ruled out. Shocks during transportation, even if they seem minor, could damage the internal structure. Over time, microcracks in metal or plastic cause the wall to “float.”
- 🔥 Overheating of the compressor, transferring excess heat to the walls of the housing.
- 💧 Moisture entering the thermal insulation layer through microcracks.
- 🏗️ Factory defective installation of the internal frame or insufficient amount of foam.
- ❄️ Formation of an ice plug in the drainage system, pressing on the walls.
The influence of the No Frost system on the deformation of the body
Refrigerators with the system No Frost have a more complex internal architecture. The presence of fans and additional air ducts requires more space, which sometimes leads to a decrease in wall thickness. This makes them more vulnerable to external influences.
Models with automatic defrosting often have problems with condensate drainage. If the drainage channel becomes clogged, water can accumulate in the lower layers of insulation. When it freezes, it turns into ice, which, as you know, increases in volume and puts pressure on the walls from the inside.
⚠️ Attention: If you notice swelling at the bottom of the No Frost refrigerator, immediately check the drainage hole. Ignoring the problem can lead to a short circuit, since water can reach electrical components.
Another nuance is the operation of defrosting heating elements. If the defrost thermostat fails, the heating element can operate continuously, causing local overheating and deformation of adjacent plastic panels. Thermal effects in this case, is the main enemy of the housing geometry.
Diagnostics of the problem: step-by-step instructions
Before starting repairs, it is necessary to accurately determine the source of the problem. Start with a visual inspection: check for dents on the outside that could cause a bulge on the inside. Then listen to the operation of the unit to see if it has become noisier than usual.
Next, you should check the temperature conditions. Use an external thermometer to make sure your refrigerator is actually cooling food to the desired temperature. If the temperature is higher than normal, the problem may be refrigerant circulation or freon leakage, which indirectly affects the condition of the walls.
An important step is checking the tightness. Apply soapy water to joints and joints. The appearance of bubbles will indicate a gas leak, which could lead to a change in pressure in the system and, as a result, deformation.
☑️ Refrigerator diagnostics
Don't forget to check the door seals. If they do not fit tightly, warm, moist air enters the chamber, which leads to increased formation of ice and increased load on the system. Rubber seal must be elastic and clean.
Methods for eliminating deformation with your own hands
If the swelling is minor and is caused by a local accumulation of foam or ice; you can try to eliminate it without disassembling the entire unit. To do this, you will need to completely defrost the refrigerator within 24 hours. Often after thawing ice plug disappears and the wall returns to its place.
In more complex cases, when deformation is caused by excess foam, craftsmen use the method of drilling holes in inconspicuous places (usually from below or on the side where the baseboard will stand or decorative strip). Excess foam material is carefully removed through these holes.
If the problem is peeling of the internal plastic, you can try to glue it after degreasing the surface. However, this will require a special adhesive that is resistant to low temperatures, otherwise the repair will be short-lived. Adhesive composition should not release toxins when cooled.
| Type of problem | Difficulty of repair | Required tools | Risk of recurrence |
|---|---|---|---|
| Ice plug | Low | Hair dryer, hot water syringe | Average |
| Excess foam | Medium | Drill, long drill bit | Low |
| Plastic peeling | High | Glue, clamps, degreaser | High |
| Metal corrosion | Critical | Grinder, new sheet of metal | Low |
Professional repair and replacement of components
In cases where swelling of the wall is accompanied by loss of cold or strange sounds, it is most likely damaged evaporator. It can be built into the wall of the refrigerator (foamed), and its repair requires complete disassembly of the case and re-foaming.
Masters in service centers carefully cut off part of the outer casing, remove the old insulation and replace the damaged section of the pipeline. After restoring the tightness of the system, the space is refilled with foam and decorative inserts are installed.
Sometimes the only solution is to install a new wall-mounted evaporator if the built-in one cannot be repaired. This is less aesthetically pleasing, but it extends the life of the appliance by several years. Replacing the unit in such cases it may not be economically feasible.
⚠️ Attention: Do not try to open foamed circuits yourself if you do not have experience working with refrigerants. The release of freon into the room in large quantities can be hazardous to health, and improper soldering will lead to a fire.
The cost of such repairs varies depending on the model of the refrigerator and the amount of work. In some cases, it is cheaper to purchase a new device, especially if the age of the current one is more than 10 years. Economic feasibility is the main criterion when making a decision.
Prevention and operating rules
To avoid repeated swelling of the walls, it is necessary to follow the operating rules. Do not place the refrigerator close to the wall, leave a gap for ventilation. Overheating of the rear often provokes problems in the entire system, including deformation of the sidewalls.
Regularly defrost the device, even if it is equipped with a No Frost system. Preventive defrosting once a year will help remove ice build-up from hard-to-reach places. Also keep the condenser grille at the back clean.
- 🧹 Regularly clean the drainage hole from crumbs and dirt.
- 🌡️ Do not set the minimum temperature unless necessary.
- 🚪 Make sure the doors close tightly and completely.
- ⚖️ Distribute the food evenly inside the chambers.
Is it possible to use a swollen refrigerator?
If the swelling does not affect the tightness and temperature conditions, you can use the device. However, watch the dynamics: if the bulge grows, this can lead to rupture of the inner box and spoilage of food.
Frequently asked questions (FAQ)
Is it dangerous to continue to use a refrigerator with a swollen wall?
If the swelling is not accompanied by a gas leak or electrical problems, the device can be used. However, this is a signal that the insulation is broken and energy consumption may increase. Monitor the state of deformation.
How much does it cost to repair a swollen wall at the service?
The cost depends on the complexity of the work. If re-foaming and replacement of the evaporator is required, the cost can be up to 50% of the cost of a new refrigerator. The technician will tell you the exact amount after diagnosis.
Is it possible to glue peeled plastic on yourself?
Yes, if you use a special glue for PVC and plastic that is resistant to low temperatures and humidity. Ordinary superglue may not withstand the conditions inside the chamber and crumble.
Why is the wall of a new refrigerator swollen?
This may be a manufacturing defect (insufficient foam or assembly defect). In this case, the warranty applies, and the appliance must be returned to the store or called an authorized technician to fix the defect free of charge.