Repair of household appliances often begins with its proper disassembly. Refrigerators of the brand Sviyaga, produced in Kazan, are distinguished by a reliable but specific design, which requires a careful approach when dismantling components. Unlike many modern imported analogues, these units often have larger metal elements and specific fastening of thermal insulation. Correct sequence action will allow you to avoid damage to the housing and internal components, which is especially important when searching for a freon leak or replacing the thermostat.
Before starting work, you need to prepare the workplace. You will need a spacious, well-lit area where you can lay out the parts in the order they are removed. Tools You should have on hand: Phillips and flathead screwdrivers, a set of open-end wrenches, pliers and, possibly, a special knife for cutting insulation. Do not forget that there may be refrigerant inside the system, so any manipulations with the tubes require caution.
This article will become your guide to the internal structure of the unit. We will consider the stages of disconnecting from the network, removing the doors, dismantling the compressor and working with the evaporator. Sviyaga - this is a classic technique, and understanding its structure will help you extend the life of the device or qualitatively restore its performance. Let's start with the very first and most important steps of preparation.
Preparation for dismantling and safety precautions
The first and most critical stage is to completely disconnect the device from the electrical network. It is not enough to simply pull the plug from the socket; you need to make sure that there is no voltage in the circuit. Safety when working with electrical appliances comes first, especially considering that there may be capacitors inside the refrigerator that retain charge. It is also important to let the unit cool completely if it has just been running.
The next step is defrosting. Even if your model is equipped with a No Frost or drip defrosting system, deep disassembly requires a complete absence of ice. Leave doors open for at least 24 hours. This is necessary so that the moisture in the insulating layer and on the evaporator is completely evaporated. Trying to disassemble a wet refrigerator will result in short circuits and corrosion of metal parts.
⚠️ Attention: Never use sharp objects or a hair dryer to speed up defrosting. A sharp temperature change can deform the plastic housing of the evaporator, and mechanical stress often leads to breakdown of the tubes, which will make repairs economically unfeasible.After defrosting, free up the internal space. Remove all shelves, drawers, egg trays and containers. Remove the shelf guides if they interfere with access to the fasteners. Internal plastic in older models Sviyaga may be fragile due to age, so be careful not to break the fasteners. Prepare a container for draining water from the drainage system, if the design provides for its dismantling.
☑️ Preparation for disassembly
Done: 0 / 4Dismantling doors and removing cladding
To access the main components, it is often necessary to remove the doors. In refrigerators Sviyaga they are attached to powerful metal hinges. First, remove the decorative caps from the hinges, if any. Then, holding the door so that it does not fall, unscrew the mounting bolts. It is better to perform this operation with an assistant, since doors with thick metal sheets can be heavy.
If your goal is to replace the seal or repair the defrosting system, you may not need to remove the doors. However, this is necessary to access the rear wall or replace the compressor. Pay attention to the wires going to the light bulb or display (in newer models). Electrical connections You need to carefully disconnect, after photographing the connection diagram, so that there is no confusion during assembly.
Removal of the outer cladding or body panels is required less often, but is sometimes necessary to replace thermal insulation or restore body geometry after impact. The side walls can be secured with hidden latches or screws under the trim strips. Use a thin plastic spatula to avoid scratching the enamel. The metal in the models Sviyaga is quite thin, and it is easy to deform with careless movement.
Access to the compressor and start relay
The compressor in refrigerators Sviyaga is usually located in the lower rear part of the unit, in a niche. To access it, simply remove the back metal cover, which is secured with several screws. In some modifications, access is provided from below, through a removable panel at the base of the case. Motor-compressor This is the heart of the refrigerator, and its replacement or repair requires special attention.
Before disconnecting the pipes, it is necessary to bleed the refrigerant if the system was not previously depressurized. After this, copper tubes are bitten off at a distance of 10-15 cm from the compressor. Next, the start relay and thermal relay are removed. They are simply put on the contacts and secured with a bracket or bar. Be careful: the contacts may oxidize and the relay may be removed with force.
Component Function Frequent malfunction Replacement tool Compressor Freon circulation Shaft jamming, interturn short circuit Keys 8, 10, pipe cutter Start relay Starting the engine Combustion of contacts, breakdown of the mechanism Pliers, screwdriver Thermal relay Overheat protection Break chains, sticking Multimeter, screwdriver Filter drier Freon cleaning Clogging, moisture saturation Pipe cutter, burner When installing a new compressor, it is important to observe the direction of movement of the refrigerant and select the correct length of the capillary tube, if it is not included. Tightness of connections checked with nitrogen under pressure before filling. Errors at this stage can lead to repeated failure of the equipment in a short time.
📊 What problem did you encounter when disassembling the compressor?Nuts stuckDifficult to remove relayI don’t know how to bleed off the freonThere were no problemsDisassembling the evaporator and defrosting system
The evaporator in refrigerators Sviyaga can be built-in (foamed in the wall) or open (plate-like). If you have a model with an open evaporator, then to replace it you need to dismantle the back wall inside the chamber. It is attached with self-tapping screws around the perimeter. Often plastic becomes brittle over years of use, so turn the screws without fanaticism.
The defrosting system includes a heating element (if any), a defrost sensor and a timer. In classic models Sviyaga with manual control or a simple mechanical timer, these elements are located near the evaporator. To check the heating element, it is “ringed” with a multimeter. If there is no resistance, the element must be replaced. Defroster (defrost sensor) is also checked for resistance, which should change depending on the temperature.
⚠️ Attention: When working with aluminum tubes avoid excessive bending of the evaporator. Aluminum breaks easily when bent, and it will be extremely difficult to restore the seal without special equipment and skills. Use only smooth movements.If the evaporator is built into the wall and a leak occurs, disassembly becomes extensive. You have to open the thermal insulation layer, cut out the damaged area and weld in a new one. This is a labor-intensive process that requires restoring the seal of the housing and re-foaming. In such cases, it is often easier to install an external mounted evaporator, although this reduces the useful volume of the chamber.
Why are aluminum tubes difficult to solder?
Aluminum quickly oxidizes in air, forming a strong film that prevents soldering. The work requires special fluxes, active solder and high speed of operation so that oxides do not have time to form again.
Removing and replacing the thermostat
The thermostat is a device that controls turning the compressor on and off depending on the temperature in the chamber. In refrigerators Sviyaga it is usually located inside the refrigerator compartment (on the wall or under the lamp shade) or outside on the body (in older models). To remove it, you need to remove the adjustment knobs and decorative trims.
The most important part of the thermostat is the bellows tube (capillary). It passes through the seal and is fixed to the evaporator. When dismantling the old regulator, the tube must be pulled out very carefully, trying not to damage it or deform it. Sensing element The inside of the tube reacts to the slightest changes, and damage will lead to incorrect operation of the refrigerator.
Installing a new thermostat requires precise positioning of the tube. It must be secured in the same place and in the same way (pressure strip, glue) as. If the tube hangs in the air or touches the chamber wall, the refrigerator will not work correctly: either it will not turn off or the compressor will not turn on in time. Check the length of the capillary - it must correspond to the model.
Assembly and initial startup
After repair work, the assembly stage begins. It is done in reverse order. Make sure that all wires are laid in their proper places and are not pinched by the metal edges of the case. Wire insulation must be intact. All fasteners must be tightened, but without distortion, especially plastic parts.
Before connecting to the network, check the insulation resistance of the motor-compressor and the absence of a short circuit to the housing. If the compressor was replaced or pipes were soldered, the system must be charged with freon in strict accordance with the passport data (indicated on the nameplate). The amount of refrigerant is critical for proper operation.
The first start-up is best done under supervision. Plug in the refrigerator and listen to the compressor. It should start smoothly, without buzzing or vibration. After 15-20 minutes, check the heating of the condenser (grid at the back) - it should warm up evenly. Temperature conditions It will be established after a few hours of operation, but the primary signs of serviceability are visible immediately.
If you changed the door seal, check the tightness of the fit. A sheet of paper clamped by a door should be pulled out with force along the entire perimeter. If somewhere it comes out freely, adjustment of the hinges or additional processing of the seal is required. Correct assembly guarantees a long service life of the repaired unit.
How long should you wait before loading food?
After turning on the empty refrigerator for the first time Sviyaga it is recommended to let it run for 2-4 hours without load. This will stabilize the temperature regime and make sure there are no leaks or automation failures.
Is it necessary to change the filter-drier during disassembly?
Yes, with any opening of the system (replacing the compressor, eliminating a leak), the filter-drier must be replaced. It is a disposable element that absorbs moisture from the system. When in contact with air, it instantly becomes saturated with moisture and loses its properties, which can lead to the formation of an ice plug in the capillary.
Is it possible to disassemble a refrigerator without draining the freon?
It is possible to disassemble the body, remove doors, shelves, plastic lining and even the compressor (by unscrewing it from the frame) without draining Freon. However, it is strictly forbidden to disconnect copper pipes from the compressor or open the system without first bleeding the refrigerant. This is dangerous and violates environmental standards.
Where can I find an electrical diagram for Sviyag?
The electrical diagram is often applied to a sticker located on the back wall of the refrigerator or inside the chamber. If the sticker is lost, the diagram can be found in the technical data sheet of the product or on specialized forums for repairing household appliances, indicating the exact model of the unit.