The situation when Biryusa refrigerator turns on and immediately turns off is familiar to many owners of household appliances. This phenomenon is often referred to as "clicking" or "buzz followed by a click." The compressor tries to start, makes a characteristic sound, but after a few seconds a click is heard and the unit goes silent. After a certain time, the cycle repeats. This behavior indicates that the protective mechanism stops the engine to avoid overheating or burning out the windings.
This problem cannot be ignored, since cyclic starts the expensive motor-compressor is quickly damaged. If you hear a hum, but there is no cold in the chambers, and the light inside is on, it means that the electrical circuit is working, but the mechanical or starting part of the system has failed. In this article we will analyze in detail the main causes of the malfunction and how to eliminate them.
Malfunction of the starting relay
The most common reason why Biryusa refrigerator clicks and does not start lies in the start protection relay. This small element is responsible for supplying a starting pulse to the motor winding and subsequently turning off the starting winding. If the contacts inside the relay are oxidized, burnt, or the mechanism is jammed, the compressor cannot go into operating mode. As a result, the current in the circuit increases sharply, and the thermal protection forcibly breaks the circuit, producing that same click.
In models with induction relay (RT type), the coil often breaks or the core jams. In more modern versions with a posistor (type RZ), the ceramic element itself fails, which stops changing resistance when heated. You can check the relay visually: if soot, melted plastic or a burning smell is visible inside, the part requires replacement. Tapping also helps: if you hear a ringing sound from the internal parts when you lightly hit the palm, it means that the mechanism is destroyed.
⚠️ Attention: Before removing the relay, be sure to disconnect the refrigerator from the power supply. Even if it does not work, the risk of electric shock when manipulating the wiring remains high. Do not try to repair a relay if you do not have experience - this is a consumable item that is easier to replace.
Replacing a relay is a simple procedure, but requires precise selection of an analogue. There is always a marking on the body of the part, for example, RTK-X or P-3. It is important to select an element with identical characteristics, otherwise the compressor will either not start or will burn out due to incorrect operating mode.
Problems with the compressor and windings
If replacing the start relay did not help and Biryusa refrigerator continues to hum and turn off, the problem may lie in the very heart of the unit — motor-compressor. The engine has two main windings: working and starting. During long-term operation or due to voltage surges, an interturn short circuit may occur. In this case, the engine tries to start, consumes a huge current, but does not develop the required speed.
The thermal relay installed on the compressor housing detects the overcurrent and opens the circuit. This is a standard protection reaction that prevents fire or final failure of the unit. It is difficult to diagnose an interturn short circuit at home; this will require multimeter the ability to ring the windings. The resistance between the contacts must be within certain limits (usually from 10 to 30 Ohms for the working winding and slightly higher for the starting winding). If the device shows zero or infinity, the compressor is faulty.
Another reason for a “difficult” start may be mechanical wear of the piston group. If the compressor seizes, it will also make a humming and clicking noise. Sometimes “wedging” by applying increased voltage helps, but this method is dangerous and requires special equipment. In most cases, when a compressor breaks down, it needs to be replaced along with system filtration and refilling with freon.
Is it possible to start a jammed compressor yourself?
There is a method of applying voltage directly to the working winding, bypassing the relay, but this gives only a short-term effect and can finally finish off the motor. This method should only be used for diagnostics before calling a technician.
Thermostat malfunction
It’s rare, but it happens that Biryusa refrigerator turns on and off due to a malfunction of the thermostat. The thermostat controls the temperature in the chamber and sends a command to start the compressor. If its contacts are stuck in the “open” or “closed” position, or if the thermostat sensing tube loses its seal, the operating cycle is disrupted. The unit may not turn on at all or, conversely, work without stopping until the protection is triggered.
In some cases, the thermostat may give false signals that the desired temperature has been reached immediately after starting. The compressor turns on, does one cycle, the thermostat “thinks” that there is already cold and turns off the power. You can check this by closing the thermostat contacts directly (using a jumper). If at the same time the refrigerator will work normally and it starts to freeze, then the temperature controller is to blame.
Particular attention should be paid to models with electronic control. Here the role of a thermostat is played by a temperature sensor (thermistor). If it sends incorrect data to the control board, the controller may prevent the compressor from starting or interrupt its operation. Diagnostics of the electronic unit requires a special tester.
Low voltage in the network
Often owners forget to check the quality of the power supply, and yet low voltage is a common cause of startup problems. If the voltage in your network drops below 190-200 Volts, the power of the electric current is not enough to spin the compressor shaft to the required speed. The engine hums, trying to overcome resistance, but does not start. The thermal relay, seeing an overcurrent, turns off the unit.
You can check the voltage using a voltmeter or a simple tester by plugging it into an outlet. If the indicators fluctuate or are stable low, the problem is not in the refrigerator, but in the wiring of the house or the general network. In such cases Biryusa refrigerator it is operational, but cannot work in such conditions. Constant operation at low voltage is detrimental to the motor windings.
The solution to the problem will be to install a voltage stabilizer. This device equalizes the network and provides the supply of standard 220 Volts. There are also special voltage control relays that completely turn off equipment during dangerous surges, protecting it from combustion.
⚠️ Attention: If you live in an area with unstable power supply, installing a stabilizer is mandatory. Repairing a compressor will cost much more than buying a high-quality stabilizing device.
Freon leak and system blockage
Although a refrigerant leak usually leads to the refrigerator simply stopping freezing, in some cases it can cause cyclic switching on and shutdown If a critical minimum of freon remains in the system, the pressure at the compressor inlet may be too low. Sensors or mechanical features of operation can lead to the fact that the engine will try to start, but quickly stall due to an imbalance in pressure.
The more likely reason in the context of “on-off” in the presence of freon is hydraulic blockage. If an ice plug has formed in the capillary tube (due to moisture in the system) or blockage with dirt, the compressor cannot push freon. The outlet pressure rises sharply, the load on the motor increases, and the thermal protection turns it off. After cooling, the plug may dissolve and the cycle will repeat.
It is impossible to diagnose a leak or blockage without a pressure gauge station. An indirect sign of a leak may be swelling of the back wall of the refrigerator (where the evaporator is located) or the appearance of oily spots near the compressor. If you notice such signs, self-repair will not help - you need to call a specialist with equipment for vacuuming and refilling.
Table of main symptoms and solutions
For quick orientation in the problem, we offer a summary table that will help compare symptoms with possible causes. This will simplify the initial diagnosis before calling a specialist.
| Symptom | Probable cause | Difficulty of repair | Necessary actions |
|---|---|---|---|
| Click through 3-5 seconds after the hum | Faulty start relay | Low | Replace the relay |
| Humming, heating of the compressor housing, shutdown | Interturn short circuit of the windings | High | Replacing the compressor |
| The refrigerator turns on, but does not freeze | Freon leak or blockage | Medium/High | Searching for leaks, refueling |
| Chaotic on/off | Thermostat faulty | Low | Replacing the thermostat |
| Weak hum and quick shutdown | Low voltage in the network | Low | Installing a stabilizer |
Procedure for diagnostics
If you decide to diagnose yourself, proceed consistently and carefully. Do not rush to disassemble the entire unit. Start with simple steps that require no tools. Make sure the outlet is working properly and the plug is firmly seated in the socket. Check if the power cord is kinked.
Next, proceed to visual inspection. Remove the back cover (if the model allows it) and inspect the compressor and relay. Look for signs of burning, melting or rust. Carefully remove the relay (after photographing the connection diagram) and shake it. A dull sound indicates integrity, a ringing indicates a breakdown.
☑️ Primary diagnostic checklist
If a visual inspection does not produce results, you will need a multimeter. Check the compressor windings for short circuits and check the resistance of the starting and operating windings. Compare the obtained data with the reference values for your model Biryusa. If you are not confident in your abilities, it is better to stop at this stage and turn to professionals.
⚠️ Attention: Do not try to open the pipeline system yourself or seal the compressor without a license and equipment. This is not only dangerous, but will also lead to final damage to the refrigerator due to moisture and air entering the system.
Frequently asked questions (FAQ)
Why does the Biryusa refrigerator buzz for 10 seconds and turn off?
This is a classic sign of a faulty start relay or a difficult compressor start. The engine tries to gain speed, but due to the lack of starting torque or mechanical resistance, the protection turns off the power. Most often, the relay needs to be replaced.
Is it possible to temporarily start a refrigerator without a relay?
Technically, you can start the motor by applying voltage directly, but doing this is strictly not recommended for long-term operation. Without a relay, the compressor will not be able to operate normally, it will quickly overheat and burn out. This is only permissible for a couple of seconds to check the performance of the motor itself.
How much does it cost to replace a compressor on Biryusa?
The cost consists of the price of a new unit, the work of a technician, materials (freon, filter, solder) and travel. Price may vary depending on region and refrigerator model. The exact amount will be announced only after diagnostics at the service center.
Does the number of products in the refrigerator affect the startup?
No, the number of products affects the duration of the compressor operation, but not the fact of startup itself. If the refrigerator turns on and immediately turns off, the problem is technical (electrical or mechanical), and not the thermal load.
What to do if, after replacing the relay, the refrigerator still clicks?
If the new relay is working properly and installed correctly, but the symptom persists, then the problem is deeper. Most likely, the compressor itself is faulty (interturn short circuit or piston wedge). Professional diagnostics are required with measurement of currents and winding resistance.