The situation when your favorite brand refrigerator Biryusa suddenly stops working, capable of unsettling any owner. Internal products begin to deteriorate, and panic reigns in the kitchen, because it is difficult to imagine a normal life without cold. Often, owners are faced with the fact that the unit is simply silent, not making the usual sounds of the engine, or, on the contrary, it hums, but does not give any cold.
Before calling a technician or looking for a service center, it is worth carrying out a primary inspection of the equipment. In many cases, the problem lies in trivial things: the plug has come out of the socket, the voltage in the network has jumped, or the protection has tripped. Understanding the basic principles of operation of the refrigeration circuit will help you save time and money on calling a specialist. self-diagnosis equipment. In many cases, the problem lies in trivial things: the plug has come out of the socket, the voltage in the network has jumped, or the protection has tripped. Understanding the basic principles of how a refrigeration circuit works will help you save time and money on calling a specialist.
In this article we will look in detail at why Biryusa refrigerator it does not turn on, which components fail most often and whether it is possible to fix the fault yourself. We will consider both the electrical part and mechanical breakdowns characteristic of this brand’s equipment. A careful study of the symptoms will help you accurately determine the source of the problem.
Primary check of the power supply and external circuit
The very first thing you need to do if refrigerator stops turning on is to make sure there is electric current in the outlet. It’s trite, but often it is the lack of voltage at a specific point that causes the “death” of the unit. Check whether the light in the room is on, whether other electrical appliances connected to the same network are working.
If there is electricity in the house, carefully inspect power cord and the plug. Frequently moving equipment or careless cleaning could cause the wire to become damaged, bent, or be bitten by pets. It is also worth checking the tightness of the contact of the plug in the socket of the socket - oxidized contacts can interfere with normal current.
⚠️ Attention: If you notice a melted plug or a blackened socket, immediately stop trying to turn it on! This is a sign of poor contact and a high fire hazard. The socket needs to be replaced or the cord repaired.
Some models Biryusa have built-in protection against power surges. If there was a sudden change in the network, the automation could block the start of the compressor to protect it. In this case, it is recommended to disconnect the device from the network for 15-20 minutes and then try to turn it on again.
☑️ Power supply diagnostics
Faulty thermostat and temperature sensors
One of the most common reasons for which Biryusa refrigerator does not turn on is a failure of the thermostat. This unit is responsible for turning the compressor on and off depending on the temperature inside the chambers. If the contacts inside the thermostat are oxidized or “stuck” in the open position, the signal to start the motor is simply not received.
In modern models with a system No Frost or electronic control, the role of a mechanical thermostat is performed by air sensors (thermistors). Their resistance changes depending on the temperature, and if the sensor “lies” or breaks, the control module can block the operation of the compressor, believing that the temperature is normal or, conversely, critical.
To check a mechanical thermostat, the contact closure method is often used. However, this requires opening the case and having minimal electrical skills. If after closing the terminals the compressor starts, then it is the fault thermostatthat requires replacement.
Where is the thermostat?
In old Biryusa models, the thermostat is usually located inside the refrigerator compartment, the control knob protrudes on the wall. In modern models, it can be hidden behind a plastic panel or replaced with an electronic sensor located in the air duct or evaporator.
Symptoms of a sensor malfunction are often accompanied by unstable operation: the refrigerator may not turn on for a long time or, conversely, work without stopping. Accurate diagnosis is only possible using a multimeter that measures the resistance of the circuit.
Problems with the start-up relay and compressor
If, when you turn on refrigerator you hear a quiet click, a hum, which after a few seconds is replaced by a click and silence, most likely the problem lies in start protection relay or the compressor itself. The relay is responsible for supplying a starting pulse to the motor winding and protecting against overheating.
Often the spiral inside the relay burns out or the contacts stick. This is an inexpensive part that is easy to replace yourself by selecting an analogue according to the markings. However, if after replacing the relay the situation has not changed, and the motor continues to hum and knock out the protection, this is a bad sign - perhaps the compressor is jammed.
The jamming of the compressor piston group occurs due to exhaustion, low-quality oil or prolonged operation in extreme conditions. In this case, the engine tries to start, but the mechanical resistance is too high. Repairing this is not practical at all; a complete replacement of the compressor is required.
| Symptom | Probable cause | Sound character | Difficulty of repair |
|---|---|---|---|
| Silence, no reactions | Open circuit, thermostat | Absent | Low |
| Clicking and buzzing (5-10 sec) | Start relay | Humming, then clicking | Medium |
| Humming and knocking out plugs | Compressor jamming | Strained hum | High |
| Quiet hum, no cold | Freon leak | Uniform hum | High |
Refrigerant leakage and clogged capillary system
There are times when Biryusa refrigerator formally turns on: the light comes on, the sound of the motor is heard, but there is no cold in the chambers. This is a classic sign of a Freon or refrigerant leak. Gas could escape through microcracks in the evaporator, often hidden by foaming, or in places where tubes are soldered.
It is difficult to visually determine the leak, but you can pay attention to the condenser grille at the back of the unit. If, when the engine runs for a long time, it remains cold or heats only in one place, then the system is empty. In this case, the compressor works constantly, trying to gain temperature, which leads to its overheating.
Another similar problem is clogged capillary tube. Oil breakdown products or moisture entering the system form an ice or dirt plug. Freon circulation stops and the refrigerator stops freezing. Fixing these faults requires calling a technician with a vacuum pump and a filling machine.
⚠️ Attention: An independent attempt to find a leak or clean the system without special equipment is prohibited. You can damage the tubes or release residual gas, which will complicate and increase the cost of subsequent professional repairs.
It is important to understand that operating the compressor without freon (in a vacuum) is only permissible for a short time for diagnostic purposes. Long-term dry operation leads to overheating and failure of the motor, since the refrigerant is also involved in cooling the motor windings.
Failures in the electronic control module
Modern models Biryusa are equipped with electronic control units that control all processes. If the refrigerator does not turn on, and diagnostics of the mechanical parts have not yielded results, the electronics may be faulty. Power surges in the network often damage the sensitive elements of the board.
Signs of a module malfunction may be: chaotic blinking of indicators, lack of response to buttons, erroneous codes on the display (if any) or complete silence of the unit when the power supply is good. Sometimes it helps resetting the error by disconnecting from the network for a long time (for 30-40 minutes).
If a reboot does not help, you need to check the board elements or replace it. In some cases, only individual fuses or triacs that control the compressor burn out, and replacing them is cheaper than buying a new module. However, such diagnostics require knowledge in radio electronics.
When you need to call a professional technician
Despite the desire to save money, there are situations when do-it-yourself repair it is not only useless, but also dangerous. If you do not have skills in working with electrical engineering and do not have special tools, you should not climb inside a complex unit. This is especially true for work related to a sealed circuit.
Calling a specialist is required if you need to overcook copper pipes, replace a compressor, or search for micro-leaks of freon. These operations require nitrogen for pressure testing, a vacuum sealer, and a scale for accurate refrigerant charging. Homemade methods do not work here and can lead to complete breakdown of the equipment.
You should also call a technician if the problem lies in the electronic module and you do not know how to read electrical circuits. Inept intervention can lead to a short circuit and even a fire. A professional technician will conduct a full diagnosis and give a guarantee for the work performed.
Why does the refrigerator turn on and immediately turn off?
This is a classic symptom of a faulty start relay or the initial stage of compressor jamming. The motor tries to start, the current increases sharply, and the thermal protection opens the circuit to prevent a fire. After some time, the protection cools down and tries to start the motor again, the cycle repeats.
Is it possible to operate the refrigerator if it does not freeze, but the light is on?
It is absolutely not possible. Operating a compressor without cooling capacity (due to freon leakage or blockage) leads to its overheating. The motor windings can burn out, and then a simple repair will turn into an expensive replacement of the compressor.
How often should Biryusa be defrosted so that it does not break?
Models with manual defrosting require shutdown when ice forms 3-5 mm thick. This usually happens once every 3-6 months, depending on air humidity and how often the doors are opened. No Frost systems do not need to be defrosted, they do it automatically.
Does the position of the refrigerator affect turning on?
Yes. If the refrigerator was transported lying down, it should not be turned on for at least 4-8 hours (preferably 24 hours). The oil from the compressor should drain back into the crankcase. Turning on earlier than this period can lead to water hammer and damage to the valves.