The situation when a loved one Biryusa refrigerator suddenly stops working always causes panic, because there may be food inside. The owner opens the door, sees that the indicators are not lit, but it is warm inside, and immediately begins to look for the answer to the question of why the equipment failed. The two-chamber models of this brand, whether classic versions with manual defrosting or more modern ones with the No Frost system, are designed quite reliably, but they are also subject to typical malfunctions.
The first thing you need to do before sounding the alarm and calling a technician is to carry out an initial visual diagnosis. Often the reason is trivial: the plug came out of the socket, a power surge knocked out the circuit breaker in the panel, or the protection in the unit itself has tripped. Lack of power This is the simplest, but also the most common problem that can be easily fixed independently without disassembling the case.
If the electricity in the apartment is all right, but the socket is working properly (you can check this by connecting any other device to it, for example, a hair dryer or lamp), which means the problem lies inside the device. In this article, we will analyze in detail the main components that may fail and help you understand whether complex repairs or part replacement are required.
Problems with power supply and network cable
The very first diagnostic stage always begins with checking the circuit from the socket to the input to the control board or starting relay. Sometimes the wire can be pinched by the housing when installing equipment or damaged by pets. Carefully inspect the cord along its entire length: there should be no cracks, creases or traces of melting on it. If the cable is visually intact, try gently moving it at the entrance to the refrigerator body - if the sound of operation appears and immediately disappears, it means that wire break occurred at the base.
In older models Biryusa there is often a problem with oxidation of the contacts in the plug itself or socket. Over time, the metal becomes covered with an oxide film, which prevents the passage of the required current. This leads to the fact that the refrigerator either does not turn on at all or works intermittently, constantly clicking the start relay. To eliminate oxidation, sometimes it is enough to clean the contacts, but if the plug is melted, it must be replaced with a new one corresponding to the current load.
⚠️ Attention! If you find that the plug or socket is very hot or blackened, do not continue to use it in this condition. This is a direct threat to fire safety, requiring replacement of the damaged wiring element.
It is also worth checking the condition of the surge protector if your refrigerator is connected through it. Cheap extension cords often cannot withstand the starting currents of the compressor and fail, opening the circuit. Connect the unit directly to the wall to eliminate this factor. If in this case the refrigerator does not respond, we move on to more complex internal diagnostics.
Faults in the starting relay and compressor
The heart of any refrigerator is the compressor, and the starting relay is its “starter”. It is this small unit that provides the initial impulse to start the engine. If you hear a characteristic click, after which the motor tries to start, hums for a few seconds and then the shutdown click is heard again, then with a 90% probability the problem is in starting relay or in the motor itself.
The relay may burn out due to a power surge or simply from running out of service life. Inside it there is a coil and contacts that burn over time. You can check it by carefully removing the plastic casing from the back of the refrigerator (at the bottom) and shaking the part near your ear: if something rattles inside, it means the mechanism is damaged and requires replacement. This is one of the most common reasons why two-chamber Biryusa stops cooling.
A more serious situation if the compressor itself is faulty. It can go into turn-to-turn short circuit windings. In this case, the relay regularly tries to start the motor, but due to a short circuit, the current increases sharply, and the protection breaks the circuit again. It is difficult to diagnose this on your own; you need to check the windings with a tester. If the resistance between the contacts shows zero or, conversely, infinity, the compressor will have to be changed.
How to distinguish a relay failure from a compressor failure?
If after replacing the relay (it is inexpensive), the situation has not changed and the motor still hums and turns off, it is more likely In general, the problem is in the wedge of the piston group or the windings of the engine itself.
Failure of the thermostat or temperature sensor
In classic models Biryusa with mechanical control, the thermostat is responsible for turning the compressor on and off. This device measures the temperature in the evaporator and closes or opens the electrical circuit. If the thermostat breaks in the "open" position, the circuit will never close and the motor will not receive a signal to start. Outwardly, it looks like this: the refrigerator is silent, the light inside is on, but there is no cold.
In modern models with electronic control (No Frost system), the role of a thermostat is performed by temperature sensors (NTC). They are thermal resistances that change their rating depending on the heat. If such a sensor “lies” or shows a break, the electronic control module blocks the start of the compressor, believing that the temperature in the chamber has already been reached, or records an error. Often, the display lights up malfunction indicator.
You can check the mechanical thermostat by closing its contacts directly (excluding it from the circuit). If after this procedure the refrigerator turns on and starts freezing, then the reason has been found. However, remember that this is a temporary measure: without a thermostat, the unit will operate continuously until you turn it off manually, which will lead to freezing of the products.
Failure of the electronic control module
Electronics in refrigerators Biryusa are becoming more common, especially in two-chamber models in the middle and high price segment. The control module is the “brain” of the device, which processes signals from sensors and commands actuators. If a fuse on the board has blown, a capacitor has broken, or a firmware failure has occurred, the refrigerator may completely stop responding to buttons or may not start the compressor.
Often the cause of module failure is voltage fluctuations in the network or moisture ingress. Moisture can flow inside the housing during careless defrosting or washing the floors. If you see traces of burning, oxidation or swollen capacitors on the board, repairs are required at a service center. Soldering complex elements on your own without experience is not recommended, as you can permanently disable the electronics.
Sometimes the problem is solved by a simple reboot. To do this, you need to completely turn off the power to the refrigerator by unplugging the plug for 15–20 minutes. During this time, the capacitors will be discharged, and the error in the controller’s memory may be reset. If after switching on the equipment started working in normal mode, it means that a one-time software failure occurred.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Complete silence, there is light | Thermostat, sensor, module | Average |
| Clicks, humming 5-10 sec | Start relay, compressor | Low / High |
| Error on display | Sensors, wiring, module | Medium |
| Light blinks, refrigerator is silent | Problems with wiring, module | High |
Problems with wiring and contacts inside the case
Internal electrical network of the refrigerator Turk includes many connections: from lighting lamps to fans and defrosting heating elements. Over time, vibration from compressor operation can weaken terminal connections. Poor contact leads to sparking, heating and eventual open circuit. This happens especially often where wires pass through door hinges or near vibration-isolated components.
Rodents are another hidden threat to wiring. Mice and rats often sneak behind refrigerators standing against the wall and chew through the insulation of wires, mistaking them for food. If you live in a private house or on the ground floor, be sure to check the space behind the appliances. A broken wire can be located anywhere in the harness, and to find it you will need testing with a multimeter each section of the circuit.
⚠️ Attention! Before starting any wiring checks, be sure to unplug the refrigerator. Working under voltage is deadly.
It is also worth paying attention to the contacts of the lighting lamp. In some models, a burnt-out lamp can cause a short circuit in the circuit, which causes the protection to trip and shut down the entire unit. Unscrew the lamp and try to turn on the refrigerator without it. If it works, just replace the lighting device.
☑️ Diagnostics of the electrical circuit
The influence of external factors and operating conditions
Sometimes the reason is that Biryusa refrigerator does not turn on, this is not due to a breakdown, but to incorrect operating conditions. For example, if the unit is installed in an unheated room where the temperature drops below +10°C (or +5°C for some models), the thermostat may not turn on the compressor because it believes that the chamber is already cold enough. The oil in the compressor thickens at low temperatures, making it difficult to start.
Overheating is also the enemy of technology. If the refrigerator is located close to the wall, radiators, or is exposed to direct sunlight, the cooling system does not have time to dissipate heat. As a result, the thermal protection of the motor is triggered and it turns off. Allow the equipment to cool, move it away from heat sources and provide clearance for ventilation.
It is also important to consider the quality of the power supply in your home. Constant power surges quickly damage sensitive electronics and motors. Using a voltage stabilizer or surge protector with protection can extend the life of your refrigerator and prevent sudden shutdowns.
Frequently asked questions (FAQ)
Why the Biryusa refrigerator hums, but does not start?
Most likely, the problem is in the starting relay, which cannot start the engine rotor, or in a jammed compressor. It is also possible that one of the motor windings may break.
Is it possible to use the Biryusa refrigerator if the light bulb is not on?
If only the lamp is not on, but there is cold, it is possible. If the lamp does not light and the refrigerator does not turn on, there may be a blown fuse in the circuit or a problem with the wiring that requires repair.
How to defrost the Biryusa refrigerator if it does not turn on?
Leave the doors open for 10-12 hours. Do not use a hairdryer or hot water to speed up the process so as not to damage the plastic and the evaporator.
How much does it cost to replace the start relay on Biryusa?
The cost of the part itself is low, but the price may vary depending on the compressor model. The main expense is calling a technician if you cannot replace it yourself.
Why doesn’t the refrigerator turn on after defrosting?
Perhaps moisture has gotten on the electrical contacts or in the sensor connectors. Let the equipment dry completely for 24 hours in a warm room before turning it on again.