A sudden stop in the operation of refrigeration equipment is always stressful for the owner, because food supplies are at risk. Two-chamber models of the domestic brand Biryusa are famous for their reliability and simplicity of design, but even such time-tested equipment is not immune to breakdowns. If you notice that the ice has melted in the freezer compartment, and food in the refrigerator compartment has begun to deteriorate faster than usual, you must immediately carry out initial diagnostics.
Most often, the problem lies in a violation of operating rules, which can be easily corrected independently, or in the failure of one of the key components of the unit. Understanding the operating principle compressor and the heat removal system will help you determine whether you need to call a technician or whether the situation can be corrected on your own. In this article we will analyze in detail the main causes of failures and methods for eliminating them.
The first thing to do is to eliminate trivial external factors. Check to see if the door fits tightly, if the power cord has come loose from the outlet, and if the circuit breakers in the panel have tripped. Sometimes it is enough just to defrost the unit for the system to work normally.
Violation of operating rules and simple errors
Before sounding the alarm and looking for replacement parts, it is worth analyzing the latest actions with the refrigerator. Often, users themselves create conditions under which Biryusa cannot reach the desired temperature. For example, loading the freezer with a large amount of warm food causes a sharp jump in load, which the regular cooling cycle does not have time to cope with.
The condition of the rubber seal on the doors is also critically important. If it is dirty, deformed, or simply does not fit tightly due to a foreign object, warm air constantly enters the chamber. The compressor tries to compensate for the heat loss by working non-stop, but in the end it can go into protection or simply wear out.
- 🧊 Check whether the refrigerator is loaded to capacity with food that is blocking the ventilation holes.
- 🚪 Inspect the seal for cracks, tears or sticking of crumbs and grease.
- ⚖️ Make sure that the unit is installed level, without distortions that may interfere with the doors closing tightly.
- 🌡️ Assess the temperature in the room: if the kitchen is hotter than +30°C, the refrigerator can work at its maximum capacity.
Particular attention should be paid to the mode superfreezing. If you accidentally activate this function (the corresponding indicator is usually on), the compressor will run continuously. In older models without automatic shutdown, this can lead to freezing of the evaporator and subsequent system failure.
Don’t forget that the location of the refrigerator also plays a role. If it stands close to the wall or next to heating devices, heat exchange is disrupted. The gap between the back wall and the furniture should be at least 5-7 cm for free air circulation.
Problems with the No Frost and drip defrosting system
Two-chamber models Biryusa can be equipped with both a drip defrosting system for the refrigeration chamber and technology No Frost in the freezer. Malfunctions of these systems are one of the most common reasons why the unit stops freezing. In No Frost systems, the ice on the evaporator is not visible to the user, as it is hidden behind a plastic panel.
If the heating element (heating element) or defrost sensor fails, the ice does not melt, but builds up layer by layer. Sooner or later, the “fur coat” becomes so thick that it blocks the cold air supply channels. As a result, the fan hums, the compressor hums, but no cold enters the chambers.
⚠️ Attention: An attempt to tear off the ice with a knife or sharp objects can lead to a puncture of the evaporator and an instant release of freon. This is a complex and expensive repair.
To diagnose the defrost system, partial disassembly of the freezer is often required. It is necessary to remove the back panel and visually assess the amount of ice. If the evaporator is covered with a thick layer of frost and the drainage hole is clogged, the problem is precisely in the defrost cycle.
How to check the defrost heating element with a multimeter?
To check, you need to ring the heating element for resistance. The normal value is from 200 to 600 ohms. If the device shows a break (infinity), the heating element has burned out and requires replacement. The integrity of the fuse, which often comes in conjunction with the heating element, is also checked.">Hidden text with diagnostic details of the heating element
In a drip system, the problem may lie in a clogged drainage channel. The water formed on the back wall does not go into the tray, but freezes below, forming an ice plug. This disrupts the temperature regime and can lead to leaks inside the housing.
Faults of the compressor and start relay
The heart of any refrigerator is compressor. If this unit does not start or works intermittently, there will be no cooling at all. Refrigerators Biryusa often use reliable but noisy compressors that are sensitive to voltage changes. network.
A common cause of startup failure is a malfunction of the starting relay. This small element is responsible for sending a pulse to the motor winding. If the relay is burned out, the compressor may hum, click, but not start, or not make any noise. sounds.
| Symptom | Probable cause | Actions |
|---|---|---|
| Humming and clicking, no start | Stuck compressor or burnt relay | Replacing the starting relay, checking the windings |
| Complete silence, there is light | Malfunction of the thermostat or wiring | Continuity of the circuit, replacing the thermostat |
| Works for 1-2 minutes and turns off | Thermal protection relay is activated | Check for overheating, cleaning the condenser |
| Extreme heating of the motor housing | Wear of the mechanical part or problems with freon | Requires diagnostics by a technician |
If the compressor is running but not cooling, the tightness of the system may be compromised. However, first you should listen: a uniform hum with periodic bubbling is normal. An intermittent, heavy hum or knocking indicates mechanical wear of the piston group.
☑️ Compressor diagnostics
It is important to note that replacing a compressor is a complex process that requires evacuation of the system and charging with freon. It is almost impossible to carry out this operation independently without special equipment.
Refrigerant leakage and clogged capillary system
One of the most insidious problems is leakage Freon. The refrigerant circulates in a closed circuit, and if a microcrack forms in the tubes, the gas gradually evaporates. In models Biryusa with a foamed evaporator (located inside the walls of the housing), it is visually impossible to find the location of the leak.
Signs of a leak are often: slight cold in one of the chambers, a hot condenser (grid at the back) is only partially or completely cold, and the compressor can run without stopping for years, and at first you will simply notice that the food has begun to freeze worse.
A clogged capillary tube is a blockage of the system by oil wear products or moisture that has gotten inside. In this case, the compressor works with increased load, trying to push freon, but the circulation is disrupted. A characteristic sign is a cold compressor and the absence of characteristic gurgling noise in the tubes.
⚠️ Attention: Refilling the refrigerator. freon requires precise knowledge of the type of refrigerant (R134a or R600a) and its dosage. Incorrect charging will lead to compressor failure.
To detect leaks, technicians use leak detectors or the nitrogen pressure test method. If the leak is found in an accessible location (for example, in soldered connections), the tube is resoldered. If corrosion has eaten up the frozen evaporator, an external cooling circuit is often installed, which is a complex engineering task.
Failures in the operation of electronics and sensors
Modern two-chamber refrigerators Biryusa are equipped with electronic control modules. Even if the mechanical part is working properly, the “brain” of the device may malfunction. A malfunction of the thermostat (thermostat) leads to the fact that the compressor simply does not receive the command to turn on.
In models with electronic control, sensors (thermistors) are responsible for the temperature. If the sensor “lies” and shows that the chamber is -20°C, although it is +10°C, the controller will not start cooling. Failures in the control board itself are also possible due to power surges.
- 🔌 Check the integrity of the wires going to the sensors, especially in the door bends.
- 🌡️ Try temporarily bypassing the thermostat (close the contacts) to check the start of the compressor.
- 💡 Pay attention to the indicators on the panel: blinking often indicates an error code.
Electronics diagnostics require a multimeter and, preferably, a circuit of a specific model. Often the problem is solved by replacing an inexpensive sensor, but sometimes a flashing or replacement of the main control module is required.
When you need to call a professional technician
Not all The breakdown is worth it and you can fix it yourself. If you have discovered that the problem lies in a sealed circuit, a freon leak, or a mechanical failure of the compressor, it is better to contact a specialist. An attempt at self-repair in these cases can lead to final damage to the equipment.
Also, the help of a professional is needed if complex dismantling of the housing is required to access the foamed evaporator. Service center technicians have the necessary equipment for vacuuming, charging and diagnosing electrical circuits under load.
It is worth considering that the cost of spare parts for Turks usually low, but the work of restoring the tightness and charging can be a significant part of the price of a new refrigerator. Weigh all the pros and cons before starting a complex repair.
⚠️ Attention: Prices for repairs and spare parts may change. Before starting work, check the current cost of parts and services at authorized service centers or spare parts stores.
Frequently asked questions (FAQ)
Why does the Biryusa refrigerator work, but the upper chamber does not freeze?
Most often this indicates a problem with air circulation (channels are clogged ice in the No Frost system) or freon leak. The upper chamber sensor or the damper that regulates the flow of cold could also have failed.
How often do you need to defrost a two-chamber Biryusa?
Models with a No Frost system in the freezer and a drip system in the refrigerator compartment require defrosting only as needed (usually 1-2 times a year) for hygienic cleaning. Complete manual defrosting is needed if ice has formed.
Is it possible to use the refrigerator if it has stopped freezing, but the light is on?
For a short time - yes, to remove food. But you cannot leave it turned on in this state, since the compressor will run idle or in overload mode, which will lead to its combustion.
What to do if the refrigerator does not turn on after defrosting?
Wait 3-4 hours. The compressor's thermal protection may have tripped and needs time to cool down. If after 5-6 hours there is no startup, check the socket and plug, and then call a technician.
Where can I find a diagram of the Biryusa refrigerator for repair?
The diagrams are usually located on the back wall of the unit (on a sticker) or in the technical documentation. For complex electronic boards, it is better to search for circuit diagrams on specialized forums for repairing household appliances by specific model number.