Understanding how the refrigerator works Biryusais the foundation for competent operation and timely detection of faults. This brand, known since Soviet times, has come a long way of evolution, but the basic principles of operation of compression units have remained unchanged. Knowledge of the internal architecture allows the owner not only to take better care of the equipment, but also to save on the services of service centers for minor repairs.
The basis of any unit Biryusa is a closed circuit through which the refrigerant circulates. The process of transition of a substance from a liquid to a gaseous state and back is accompanied by the absorption or release of heat. It is this physical law of thermodynamics that ensures the cooling of products in the chambers. Modern models may differ in the set of additional options, but the “heart” and “circulatory system” work according to a single algorithm.
In this article we will analyze in detail each component, from the motor to the defrosting system, so that you can accurately diagnose the problem. We will look at the differences between the drip system and technologies No Frostthat are being actively introduced into new lines of the Krasnoyarsk plant. The critical difference between the old and new Biryusa models is the type of refrigerant: R600a (isobutane) requires special care during repairs due to its flammability.
The principle of operation of the compression cycleThe central element that ensures the circulation of freon is compressor. In refrigerators Biryusa most often use sealed piston units that build up pressure and push the refrigerant through the tubes. When you turn on the equipment, the electric current starts the motor, which begins to compress the freon gas, increasing its temperature and pressure.
Next, the hot gas enters the condenser, usually located on the back wall of the case. Here heat exchange occurs with the environment: the gas cools and turns into liquid. It is important to understand that if the condenser grille is clogged with dust, the cooling efficiency drops sharply, causing the motor to wear out. This is one of the most common causes of overheating.
After the condenser, the liquid refrigerant passes through a filter drier, where moisture is removed from it, and enters the capillary tube. Capillary has a very small diameter, which creates the necessary resistance and a sharp drop in pressure. It is at this moment that, entering the evaporator inside the chamber, the refrigerant boils at low temperatures, actively removing heat from the products.
📊 What type of defrosting do you have in the Biryusa refrigerator?Drip system (crying wall)No Frost (full)Manual defrostingI don’t know / Didn’t pay attention
Design of the evaporator and freezerThe evaporator is the very unit where the “magic” of cooling happens. In classic models Turk with a drip system, it is often hidden behind the rear panel of the refrigerator compartment or is a metal sheet on the back wall of the freezer. The surface temperature of the evaporator can drop to minus 20-30 degrees.
In the freezer, the evaporator is usually made in the form of a coil, weaving around the shelves or built into the walls. When the compressor operates on these cold surfaces, moisture from the air begins to condense, turning into frost. Ice thickness directly affects thermal conductivity: the thicker the layer of snow, the worse the refrigerator works.
Some models use a fan to remove heat from the evaporator. It provides forced circulation of cold air, which allows you to freeze food faster and equalize the temperature throughout the chamber. However, the presence of moving mechanical parts increases the risk of noise and breakdowns.
⚠️ Attention: Never try to pick out the ice in the freezer with sharp objects. Damage to the evaporator tubes will lead to immediate release of freon and moisture into the system, which will require complex and expensive repairs with replacement of the compressor.
Control system: thermostat and electronicsThe thermostat is responsible for maintaining the set temperature. In mechanical models Biryusa is a device with a bellows filled with a gas analogue of freon. When the temperature in the chamber rises, the gas expands, the contacts close and the compressor starts. When cold is reached, the process is reversed.
Modern units are equipped with electronic control modules. They read readings from temperature sensors (thermistors) located in different areas of the chamber. Electronics allow you to more accurately control the operation of the motor, control the backlight, sound alarm and super-freezing mode.
If the refrigerator stops turning off or, conversely, does not turn on, the problem often lies in the sensors or relays. Replacing the thermostat is a procedure that can be done with your own hands if you have basic skills, but requires precise adjustment of the temperature threshold.
Typical sequence for checking the thermostat:
1. Turn off the power.
2. Remove the regulator handle and protective casing.
3. Ring the contacts with a multimeter (should be “0” when closed).
Features of the No Frost system in Biryusa modelsTechnology No Frost (literally “without frost”) radically changes the internal architecture of the refrigerator. In such models, the evaporator is hidden in a special compartment, usually behind the back wall of the freezer or between the chambers. Cooling occurs not from direct contact with cold walls, but from air flow.
The key element here is the automatic defrosting system. Periodically, based on a signal from a timer or real-time clock, the compressor turns off and turns on TEN (tubular electric heater). It heats the evaporator, melting the ice frozen on it. Melt water flows into a tray above the compressor and evaporates.
This system eliminates the need for the user to defrost the refrigerator manually, but adds complexity to the design. New components appear that can fail: defrost timer, heater, defrost sensor and drainage system.
Why does ice still appear in No Frost?
Ice can appear when the door seal does not fit tightly, frequent opening or a malfunction of the defrost sensor, which does not give the command to turn on the heating element.
Table of main components and their functionsFor ease of perception of information about how the refrigerator works Biryusa, let's summarize the main components in a single table. This will help you quickly navigate when searching for a part or diagnosing.
Unit / Part
Location
Main function
Typical breakdown
Compressor
Bottom, rear
Freon pressure buildup
Humming, does not start
Condenser
Rear grille
Cooling and liquefaction gas
Pollution, corrosion
Thermostat
Inside the chamber / Rear
Turning the motor on/off
Does not turn off or on
Defrost heating element
In the No Frost system
Ice melting on the evaporator
Filament burnout
Filter drier
At the outlet from the condenser
Removing moisture from freon
Clogged system
Frequent device problems and diagnosticsKnowing the device, you can guess the cause of the malfunction. If the refrigerator Biryusa hums but does not get cold, there may be a freon leak or a clogged capillary. If the motor runs nonstop and the temperature does not drop, check the door seal and the integrity of the seal.
Extraordinary noise often indicates problems with the fan in No Frost models or that the compressor is touching the housing or pipes. Vibration can be transmitted to the floor if the legs of the refrigerator are not adjusted correctly. Casual distortion is unacceptable for the correct operation of the compressor oil pump.
It is important to monitor the condition of the drainage hole in the refrigerator compartment. If it becomes clogged with food crumbs or mold, water will begin to accumulate at the bottom and flow out. Cleaning with a soft wire or brush solves this problem in a couple of minutes.
⚠️ Attention: If you smell burnt wiring or see sparking in the area of the compressor start relay, immediately unplug the device. Operation with faulty electrics is a fire hazard.
☑️ Noise diagnostics
Done: 0 / 4
Care for internal systems for durabilityLong life refrigerator Biryusa depends not only on the build quality, but also on operating conditions. Regularly cleaning the condenser grille of dust with a vacuum cleaner or brush significantly improves heat transfer. This is especially true for pet owners.
Do not overload the shelves with excessive amounts of warm foods. A sharp jump in temperature forces the compressor to work at maximum load, which reduces its service life. It is also not recommended to fill the chamber to more than 70% of the volume so that air can circulate freely.
Monitor the condition of the sealing rubber bands. If they have lost their elasticity or are torn, the cold will escape and the compressor will work continuously. Wiping the rubber bands with a soft cloth and soapy water will help preserve their properties.
Why does the Biryusa refrigerator not turn off for a long time?
This may be caused by several factors: clogged capillary system, freon leak, thermostat malfunction or simply too low temperature in the room where the equipment is located. Also check if the door seal is dry.
Is it possible to replace the Biryusa compressor with an analogue?
Yes, you can install a compatible compressor from other manufacturers (for example, Danfoss or Embraco) if the overall dimensions, power and type of refrigerant are the same. However, this requires professional sealing of the pipes and evacuation of the system.
How often should Biryusa with a drip system be defrosted?
It is recommended to completely defrost and wash the refrigeration chamber at least once a year. The freezer compartment during intensive use and the formation of a thick ice crust - as necessary, but it is advisable not to allow a layer of ice more than 5 mm.
In the freezer, the evaporator is usually made in the form of a coil, weaving around the shelves or built into the walls. When the compressor operates on these cold surfaces, moisture from the air begins to condense, turning into frost. Ice thickness directly affects thermal conductivity: the thicker the layer of snow, the worse the refrigerator works.
Some models use a fan to remove heat from the evaporator. It provides forced circulation of cold air, which allows you to freeze food faster and equalize the temperature throughout the chamber. However, the presence of moving mechanical parts increases the risk of noise and breakdowns.
⚠️ Attention: Never try to pick out the ice in the freezer with sharp objects. Damage to the evaporator tubes will lead to immediate release of freon and moisture into the system, which will require complex and expensive repairs with replacement of the compressor.
Control system: thermostat and electronicsThe thermostat is responsible for maintaining the set temperature. In mechanical models Biryusa is a device with a bellows filled with a gas analogue of freon. When the temperature in the chamber rises, the gas expands, the contacts close and the compressor starts. When cold is reached, the process is reversed.
Modern units are equipped with electronic control modules. They read readings from temperature sensors (thermistors) located in different areas of the chamber. Electronics allow you to more accurately control the operation of the motor, control the backlight, sound alarm and super-freezing mode.
If the refrigerator stops turning off or, conversely, does not turn on, the problem often lies in the sensors or relays. Replacing the thermostat is a procedure that can be done with your own hands if you have basic skills, but requires precise adjustment of the temperature threshold.
Typical sequence for checking the thermostat:
1. Turn off the power.
2. Remove the regulator handle and protective casing.
3. Ring the contacts with a multimeter (should be “0” when closed).
Features of the No Frost system in Biryusa modelsTechnology No Frost (literally “without frost”) radically changes the internal architecture of the refrigerator. In such models, the evaporator is hidden in a special compartment, usually behind the back wall of the freezer or between the chambers. Cooling occurs not from direct contact with cold walls, but from air flow.
The key element here is the automatic defrosting system. Periodically, based on a signal from a timer or real-time clock, the compressor turns off and turns on TEN (tubular electric heater). It heats the evaporator, melting the ice frozen on it. Melt water flows into a tray above the compressor and evaporates.
This system eliminates the need for the user to defrost the refrigerator manually, but adds complexity to the design. New components appear that can fail: defrost timer, heater, defrost sensor and drainage system.
Why does ice still appear in No Frost?
Ice can appear when the door seal does not fit tightly, frequent opening or a malfunction of the defrost sensor, which does not give the command to turn on the heating element.
Table of main components and their functionsFor ease of perception of information about how the refrigerator works Biryusa, let's summarize the main components in a single table. This will help you quickly navigate when searching for a part or diagnosing.
Unit / Part
Location
Main function
Typical breakdown
Compressor
Bottom, rear
Freon pressure buildup
Humming, does not start
Condenser
Rear grille
Cooling and liquefaction gas
Pollution, corrosion
Thermostat
Inside the chamber / Rear
Turning the motor on/off
Does not turn off or on
Defrost heating element
In the No Frost system
Ice melting on the evaporator
Filament burnout
Filter drier
At the outlet from the condenser
Removing moisture from freon
Clogged system
Frequent device problems and diagnosticsKnowing the device, you can guess the cause of the malfunction. If the refrigerator Biryusa hums but does not get cold, there may be a freon leak or a clogged capillary. If the motor runs nonstop and the temperature does not drop, check the door seal and the integrity of the seal.
Extraordinary noise often indicates problems with the fan in No Frost models or that the compressor is touching the housing or pipes. Vibration can be transmitted to the floor if the legs of the refrigerator are not adjusted correctly. Casual distortion is unacceptable for the correct operation of the compressor oil pump.
It is important to monitor the condition of the drainage hole in the refrigerator compartment. If it becomes clogged with food crumbs or mold, water will begin to accumulate at the bottom and flow out. Cleaning with a soft wire or brush solves this problem in a couple of minutes.
⚠️ Attention: If you smell burnt wiring or see sparking in the area of the compressor start relay, immediately unplug the device. Operation with faulty electrics is a fire hazard.
☑️ Noise diagnostics
Done: 0 / 4
Care for internal systems for durabilityLong life refrigerator Biryusa depends not only on the build quality, but also on operating conditions. Regularly cleaning the condenser grille of dust with a vacuum cleaner or brush significantly improves heat transfer. This is especially true for pet owners.
Do not overload the shelves with excessive amounts of warm foods. A sharp jump in temperature forces the compressor to work at maximum load, which reduces its service life. It is also not recommended to fill the chamber to more than 70% of the volume so that air can circulate freely.
Monitor the condition of the sealing rubber bands. If they have lost their elasticity or are torn, the cold will escape and the compressor will work continuously. Wiping the rubber bands with a soft cloth and soapy water will help preserve their properties.
Why does the Biryusa refrigerator not turn off for a long time?
This may be caused by several factors: clogged capillary system, freon leak, thermostat malfunction or simply too low temperature in the room where the equipment is located. Also check if the door seal is dry.
Is it possible to replace the Biryusa compressor with an analogue?
Yes, you can install a compatible compressor from other manufacturers (for example, Danfoss or Embraco) if the overall dimensions, power and type of refrigerant are the same. However, this requires professional sealing of the pipes and evacuation of the system.
How often should Biryusa with a drip system be defrosted?
It is recommended to completely defrost and wash the refrigeration chamber at least once a year. The freezer compartment during intensive use and the formation of a thick ice crust - as necessary, but it is advisable not to allow a layer of ice more than 5 mm.
Typical sequence for checking the thermostat:
1. Turn off the power.
2. Remove the regulator handle and protective casing.
3. Ring the contacts with a multimeter (should be “0” when closed).
The key element here is the automatic defrosting system. Periodically, based on a signal from a timer or real-time clock, the compressor turns off and turns on TEN (tubular electric heater). It heats the evaporator, melting the ice frozen on it. Melt water flows into a tray above the compressor and evaporates.
This system eliminates the need for the user to defrost the refrigerator manually, but adds complexity to the design. New components appear that can fail: defrost timer, heater, defrost sensor and drainage system.
Why does ice still appear in No Frost?
Ice can appear when the door seal does not fit tightly, frequent opening or a malfunction of the defrost sensor, which does not give the command to turn on the heating element.
Table of main components and their functionsFor ease of perception of information about how the refrigerator works Biryusa, let's summarize the main components in a single table. This will help you quickly navigate when searching for a part or diagnosing.
Unit / Part
Location
Main function
Typical breakdown
Compressor
Bottom, rear
Freon pressure buildup
Humming, does not start
Condenser
Rear grille
Cooling and liquefaction gas
Pollution, corrosion
Thermostat
Inside the chamber / Rear
Turning the motor on/off
Does not turn off or on
Defrost heating element
In the No Frost system
Ice melting on the evaporator
Filament burnout
Filter drier
At the outlet from the condenser
Removing moisture from freon
Clogged system
Frequent device problems and diagnosticsKnowing the device, you can guess the cause of the malfunction. If the refrigerator Biryusa hums but does not get cold, there may be a freon leak or a clogged capillary. If the motor runs nonstop and the temperature does not drop, check the door seal and the integrity of the seal.
Extraordinary noise often indicates problems with the fan in No Frost models or that the compressor is touching the housing or pipes. Vibration can be transmitted to the floor if the legs of the refrigerator are not adjusted correctly. Casual distortion is unacceptable for the correct operation of the compressor oil pump.
It is important to monitor the condition of the drainage hole in the refrigerator compartment. If it becomes clogged with food crumbs or mold, water will begin to accumulate at the bottom and flow out. Cleaning with a soft wire or brush solves this problem in a couple of minutes.
⚠️ Attention: If you smell burnt wiring or see sparking in the area of the compressor start relay, immediately unplug the device. Operation with faulty electrics is a fire hazard.
☑️ Noise diagnostics
Done: 0 / 4
Care for internal systems for durabilityLong life refrigerator Biryusa depends not only on the build quality, but also on operating conditions. Regularly cleaning the condenser grille of dust with a vacuum cleaner or brush significantly improves heat transfer. This is especially true for pet owners.
Do not overload the shelves with excessive amounts of warm foods. A sharp jump in temperature forces the compressor to work at maximum load, which reduces its service life. It is also not recommended to fill the chamber to more than 70% of the volume so that air can circulate freely.
Monitor the condition of the sealing rubber bands. If they have lost their elasticity or are torn, the cold will escape and the compressor will work continuously. Wiping the rubber bands with a soft cloth and soapy water will help preserve their properties.
Why does the Biryusa refrigerator not turn off for a long time?
This may be caused by several factors: clogged capillary system, freon leak, thermostat malfunction or simply too low temperature in the room where the equipment is located. Also check if the door seal is dry.
Is it possible to replace the Biryusa compressor with an analogue?
Yes, you can install a compatible compressor from other manufacturers (for example, Danfoss or Embraco) if the overall dimensions, power and type of refrigerant are the same. However, this requires professional sealing of the pipes and evacuation of the system.
How often should Biryusa with a drip system be defrosted?
It is recommended to completely defrost and wash the refrigeration chamber at least once a year. The freezer compartment during intensive use and the formation of a thick ice crust - as necessary, but it is advisable not to allow a layer of ice more than 5 mm.
| Unit / Part | Location | Main function | Typical breakdown |
|---|---|---|---|
| Compressor | Bottom, rear | Freon pressure buildup | Humming, does not start |
| Condenser | Rear grille | Cooling and liquefaction gas | Pollution, corrosion |
| Thermostat | Inside the chamber / Rear | Turning the motor on/off | Does not turn off or on |
| Defrost heating element | In the No Frost system | Ice melting on the evaporator | Filament burnout |
| Filter drier | At the outlet from the condenser | Removing moisture from freon | Clogged system |
☑️ Noise diagnostics
Why does the Biryusa refrigerator not turn off for a long time?
This may be caused by several factors: clogged capillary system, freon leak, thermostat malfunction or simply too low temperature in the room where the equipment is located. Also check if the door seal is dry.
Is it possible to replace the Biryusa compressor with an analogue?
Yes, you can install a compatible compressor from other manufacturers (for example, Danfoss or Embraco) if the overall dimensions, power and type of refrigerant are the same. However, this requires professional sealing of the pipes and evacuation of the system.
How often should Biryusa with a drip system be defrosted?
It is recommended to completely defrost and wash the refrigeration chamber at least once a year. The freezer compartment during intensive use and the formation of a thick ice crust - as necessary, but it is advisable not to allow a layer of ice more than 5 mm.