The need to get to the internal components of refrigeration equipment often takes the owner by surprise, especially when access to the compressor, thermostat or ventilation system is required. In models of the domestic brand Biryusa the top cover not only performs a decorative function, but also serves as part of the sound insulation, hiding important technical elements. Before starting any manipulations, it is important to understand that the design may differ depending on the specific series and year of manufacture of your unit.
Removing the panel is the first step to carrying out serious maintenance or replacing failed parts. Improper dismantling can lead to damage to the plastic fasteners or deformation of the metal, which in the future will cause the appearance of an extraneous hum when the motor is running. Therefore, it is extremely important to act consistently, using the right tool and observing safety precautions.
In this article we will analyze in detail all the nuances of the process, from preparing the workplace to final assembly. You will learn where to look for hidden screws, how to safely disconnect wires, and what features different modifications of refrigerators have. Careful study of the material will allow you to avoid common mistakes and maintain the product warranty, if it is still valid. Biryusa. Carefully studying the material will allow you to avoid common mistakes and maintain the product warranty, if it is still valid.
Preparation of tools and workplace
Before you begin disassembling, you need to organize a comfortable space for work. The refrigerator must be stable and access to the rear and top must not be restricted by walls or furniture. It is recommended to move the unit at least a meter away from the wall in order to be able to move freely around it and not damage the flooring or the device itself.
To complete the task, you will need a minimum set of a home handyman, which can be found in most apartments. The main tool will be a Phillips screwdriver, preferably with a magnetic tip, which will make working with small screws easier. You may also need a flat-head screwdriver to pry up the plugs and a plastic spatula to avoid scratching the surface of the case.
- 🛠️ Phillips screwdriver (size PH2 or PH1 depending on the screws).
- 🔦 Flashlight for illuminating hard-to-reach places inside the case.
- 🧤 Work gloves to protect hands from sharp metal edges.
- 📱 Smartphone for photographing disassembly stages.
Particular attention should be paid to safety. Before starting work, be sure to disconnect the refrigerator from the power supply by removing the plug from the outlet. This will eliminate the risk of electric shock if you accidentally touch exposed wires or thermostat contacts. Also, defrost the chamber if there is ice in it to prevent water from getting on the electrical components when removing the cover.
⚠️ Warning: Never begin disassembly without making sure the power is completely turned off. Residual voltage in the capacitors or accidental activation of the compressor can cause serious injury.
Prepare a container in advance for storing fasteners. Small screws tend to get lost in the carpet pile or roll under the baseboard, which can stop the entire repair process. Using a magnetic tray or small jars will help keep things organized and not lose anything.
☑️ Preparation for dismantling
Design features of the Biryusa upper casing
Refrigerators Biryusa are famous for their reliability and simple design, but even they have their own engineering features. The top cover, or so-called “cap,” can be attached differently depending on the model. In classic two-chamber versions, it is often a separate metal or plastic panel, fixed with screws around the perimeter and in the central part.
In some modern models, the top panel is a continuation of the side walls or is integrated into the overall body system, which requires a more delicate approach. It is important to understand that under this casing there is usually a motor-compressor, a start relay, a condenser and refrigeration circuit pipes. Any careless movement can damage these fragile elements.
The design also includes soundproofing materials. Under the cover you may find felt pads or foam inserts that dampen vibration. They must be carefully bent or temporarily removed, being careful not to tear or lose them, since they are critical for the quiet operation of the device.
Why may the cover not be removed?
Sometimes the cover cannot be removed due to dried paint or sealant. In older models, the rubber gaskets could stick to the metal over years of use. Do not use force - carefully run a flat screwdriver around the perimeter, trying to separate the stuck areas.
It is worth noting that in a number of models, access to the fasteners may be hidden under decorative plugs. These plastic elements often disguise screw heads, giving the product an aesthetic appearance. Removing them requires care so as not to break the latches.
Step-by-step instructions for removing the top panel
The dismantling process begins with a visual inspection of the top of the refrigerator. Run your hand around the perimeter of the cover to identify possible recesses or holes where fasteners may be hiding. In most cases, the screws are located at the corners of the panel and in the center, closer to the back wall.
If you find plastic plugs, carefully pry them off with a flat-head screwdriver or knife. Proceed with caution, the plastic becomes brittle over time and may crack. After removing the plugs you will have access to the screws. Use a Phillips screwdriver of the appropriate size to unscrew them counterclockwise.
| Mounting type | Location | Tool | Features |
|---|---|---|---|
| Screws under the plugs | At the corners of the cover | Screwdriver PH2 | It is necessary to remove decorative plugs |
| Exposed screws | Center and back | Screwdriver PH1/PH2 | Often hidden by sound insulation |
| Latches/Clips | Side edges | Flat screwdriver | You need to release the clamps |
After all visible screws have been unscrewed, do not rush to sharply pull the cover up. It can be held on by latches or pressed down by the weight of its own components. Using light rocking movements, try to lift the panel. If you feel resistance, check to see if you forgot to remove any screw in the back that may be securing the lid to the main frame.
On models with a top freezer, the situation can be more complicated, since the lid often extends under the top wall of the freezer. In this case, you may need to tilt the refrigerator forward slightly (being careful not to allow oil from the compressor to flow into the system) or remove the side panels to access hidden fasteners.
Working with internal components and wires
When the top cover has been successfully removed and set aside, you have access to the "heart" of the refrigerator. It is important to be extremely careful here. The compressor, pipes and electrical wiring require careful handling. Any damage to the copper tubes will result in a freon leak and costly repairs.
If your goal is to replace the thermostat or start relay, you may have to disconnect some wires. Before doing this, be sure to take a photo of the connection diagram or sketch it. Wire colors may vary between batches, and relying on memory in such a case is risky. Use insulating tape or marking tags to sign the contacts.
- 🔌 Thermostat - regulates the temperature, often mounted inside the chamber, but its contacts can go up.
- ⚡ Start relay - placed on the compressor rod, requires careful removal.
- 💡 Lighting lamp - in some models, the wiring goes through the top panel.
- ❄️ Defrost sensors - can be located in the evaporator area under the top cover.
When working with wires, avoid sharp jerks. Wiring in older refrigerators can be dry and brittle. If you need to move the wire harness to the side, do it smoothly, holding them at the base. Also pay attention to the condition of the insulation: if you find cracks or melting, this is a signal that a section of the circuit needs to be replaced.
⚠️ Attention: It is strictly forbidden to bend the copper tubes of the refrigeration circuit at an angle of less than 90 degrees. This will lead to a bend in the tube and disruption of refrigerant circulation.
In some cases, condensation or traces of oil can be found under the cap. This may indicate microcracks in the system or drainage problems. If you plan to clean, use dry rags and avoid getting moisture on the electrical contacts.
Nuances for different models of refrigerators
The line of refrigerators Biryusa is extensive and includes both Soviet models and modern units. In older models, such as Biryusa 6 or Biryusa 8, the design is simplified as much as possible: the top cover is often held on by 4-6 screws around the perimeter and is easily removed after unscrewing them. The metal here is thick and difficult to damage, but rust can cause problems.
Modern models, for example, series Biryusa 133 or Biryusa 149may have a more complex fastening system, including plastic fasteners and hidden screws under decorative overlays. In models with a No Frost system, a fan and air ducts are often located under the top cover, which requires special care when removing so as not to damage the plastic elements of the air circulation system.
Built-in models deserve special attention. In them, the top panel can be part of a furniture box or have specific fastenings for installation in a niche. It is important here not to confuse the fasteners of the refrigerator itself and the fasteners of the decorative panels.
If you are the owner of a rare or specific model, and standard methods do not work, try to find the technical data sheet of the device. It often contains disassembly diagrams. It is also useful to look for information on the specific article number indicated on the nameplate inside the camera.
Assembly and performance testing
After the necessary repairs or cleaning, the assembly stage begins. It requires the same care as disassembly. Replace the top cover, making sure that all wires and tubes are routed correctly and are not pinched by metal edges. Improper installation of communications can lead to their chafing during vibration during compressor operation.
Tighten all the screws, but do not overdo it with force. Plastic threads or thin metal may not withstand excessive pressure. Move diagonally, tightening the screws gradually to ensure the cover fits evenly. This will also help avoid distortions that can cause rattling.
After complete assembly, connect the refrigerator to the network. During the first minutes of operation, listen for sounds coming from the rear. The absence of extraneous knocking, hum or vibration of the top panel indicates correct installation. If the cover vibrates, you may have forgotten to install the rubber seals or did not tighten the fasteners properly.
Let the refrigerator run idle for 30-40 minutes to make sure the temperature is stable and there are no leaks (if work has been done on the cooling system). Only after this can you load products.
What to do if the screws are rusty and cannot be unscrewed?
If you are faced with corrosion of the fasteners, do not try to immediately apply force - this may rip off the screw head. Treat the threads with a penetrating lubricant (eg WD-40) and leave for 15-20 minutes. After the rust has softened, try carefully unscrewing the screw. As a last resort, you can use pliers, grabbing the cap from the side, but proceed carefully so as not to damage the body.
Is it possible to operate the refrigerator without the top cover?
Short-term operation without a lid is acceptable for diagnostics, but constant operation is not recommended. The cover ensures proper air circulation around the compressor and protects internal components from dust and moisture. In addition, without it, the noise level will increase significantly.
How often do you need to remove the cover for maintenance?
Remove the top cover for maintenance no more than once every 2-3 years, if necessary (for example, to clean the condenser from dust). Frequent disassembly wears out the mounting holes and can lead to loosening of the structure.