The brand's refrigeration equipment Biryusa has earned a reputation as reliable equipment capable of operating in a wide temperature range. However, owners are often faced with the question of how often the motor-compressor should be turned off to maintain a given temperature. Understanding the operating algorithms of the unit allows you to notice a malfunction in time and prevent spoilage of products or breakdown of expensive components.
In normal operation, the intervals of idle time and engine activity are strictly regulated by the factory settings of the thermostat. If your refrigerator Biryusa turns off too often or, conversely, works without interruptions, this indicates a heat transfer problem or a refrigerant leak. It is important to distinguish between short-term pauses in operation caused by reaching temperature and emergency stops.
For accurate diagnosis, it is necessary to take into account external factors: room temperature, chamber loading density and seal tightness. Normal cycle work implies that the compressor spends approximately 30-40% of its time in an active state total time, the rest of the time he rests. Any significant deviations from these indicators require attention and, possibly, the intervention of a specialist.
Standard operating cycle of the Biryusa refrigerator
The optimal operating mode for most models Biryusa is considered to be the ratio at which 10-15 minutes of operation the compressor has 20-30 minutes of downtime. This means that within an hour the engine is turned on and off approximately 2-3 times. This mode ensures energy efficiency and minimizes wear and tear on mechanical parts.
If you notice that the unit turns off every 2-3 minutes, this phenomenon is called “clocking”. It is extremely harmful for start-up relay and motor windings. In the opposite situation, when the refrigerator runs for hours without stopping, the thermostat does not receive a signal that the desired temperature has been reached, which often indicates a freon leak or compressor wear.
It is worth considering that in the hot season or when the chambers are maximally loaded with food, cycles may be longer. However, even under these conditions, a period of rest must be present. The absence of pauses for more than 2 hours in a row with the doors closed is a reason to check the cooling system.
Factors influencing the frequency of switching on and off
The frequency of motor operation is influenced by many variables that are often ignored by users. Ambient temperature plays a key role: if the refrigerator is standing near a radiator or in the sun, heat inflows increase, causing the compressor to work longer and more often.
Another important factor is the tightness of the circuit. If the rubber seal on the door is damaged or dirty, warm air constantly gets inside. As a result, thermostat detects an increase in temperature and starts the motor again, even if the products are already cooled.
- ❄️ Loading with warm products sharply increases the duration of the first cooling cycle.
- 🚪 Frequent opening of the doors disrupts the temperature balance inside chambers.
- ❄️ The formation of a large “fur coat” on the evaporator impairs heat transfer.
⚠️ Attention: If you install the refrigerator close to the wall (less than 5 cm), the air circulation around the condenser is disrupted, which leads to overheating and increased operating time of the compressor.
Reasons for short operating cycles (clocking)
The situation when the refrigerator Biryusa turns on, runs for 1-2 minutes and clicks off is called clocking. Most often the problem lies in the start-up relay. This element is responsible for starting the engine and protecting against overloads. If the relay is faulty, it opens the circuit ahead of time, preventing the motor from gaining speed.
Another reason may be an interturn short circuit in the compressor windings. The engine tries to start, consumes high current, and the protection shuts off the power. repeated attempts to start can lead to complete burnout of the motor. In this case, a characteristic hum or buzz is heard before the shutdown click.
What will happen if you ignore the clock?
If you do not replace the relay or do not repair the short circuit, the compressor will burn out. Repair in this case will require replacing the motor and refilling with freon, which is up to 70% of the cost of a new refrigerator.
It is also worth checking the voltage in the network. At low voltage (less than 190 Volts), the engine cannot develop the necessary power to start and is quickly switched off by the protection. In such cases, it is recommended to use a voltage stabilizer.
Why the refrigerator does not turn off for a long time
Continuous operation of the compressor is stressful for equipment. If Biryusa it buzzes for hours without pauses, first check the position of the temperature regulator. Perhaps it is set to maximum cooling, and the unit does not physically have time to reach this point under current conditions.
A more serious reason is a refrigerant leak. Freon circulates through the system, taking away heat. If its quantity has decreased due to a microcrack, the efficiency decreases. The compressor is working hard, trying to compensate for the lack of refrigerant, but the temperature in the chamber does not drop to the required level, therefore thermostat does not give a command to stop.
| Symptom | Probable cause | Actions |
|---|---|---|
| It hums, but there is no cold | Freon leak | Call a technician to find a leak |
| The motor is hot, there are no pauses | Clogged capillary tubes | Cleaning the system and replacing the filter |
| Ice only at the back wall | Faulty defrost heating element | Replacing the defrost heater |
| Noisy operation without stops | Compressor wear | Diagnostics of pressure in the system |
In models with the No Frost system, the cause may be a malfunction of the defrost timer or heater. If the evaporator is overgrown with ice, the air does not circulate, and the temperature sensor in the chamber does not detect cooling, forcing the motor to work constantly.
Diagnostics of the thermostat and sensors
The thermostat is the “brain” that decides when to turn on or off the refrigerator. If this device is malfunctioning, it may send incorrect signals. In mechanical models Biryusa the bellows tube, which transmits temperature from the evaporator to the contacts, often fails.
In modern electronically controlled models, temperature sensors are responsible for control. If one of them shows incorrect data (for example, too low), the control board will assume that the chamber is warm and will not turn off the compressor. You can check the sensor with a multimeter by measuring its resistance at different temperatures.
☑️ Checking the thermostat
Sometimes the problem is solved by simple adjustment. Some mechanical thermostats have screws under the seal. However self-adjustment without a pressure gauge and experience is not recommended, since you can reset the factory settings, which will lead to incorrect operation.
The influence of the fast freezing mode
Many users forget about the existence of the “Super Freeze” mode or "Quick Freeze". When this function is activated, the refrigerator Biryusa forcefully turns off the thermostat, forcing the compressor to work continuously until you manually turn off the mode or the specified time has passed (usually up to 24 hours).
This is normal behavior of equipment designed for rapid cooling of large volumes of products. If you accidentally press the button, the indicator on the panel will light up and the unit will stop turning off. Don't be alarmed, just deactivate the function.
⚠️ Attention: Long-term operation in super freezing mode unnecessarily leads to excessive energy consumption and a reduction in compressor life. Use this mode only when the chamber is fully loaded with fresh food.
If the button is stuck or the touch module is faulty, the refrigerator may “think” that the mode is on. In this case, diagnostics of the electronic control module will be required.
When you need to call a technician
There are situations when independent repair is impossible or dangerous. If you have checked the seals, defrosted the unit and made sure that the voltage in the network is normal, but the problem persists, you need a specialist. Especially if you hear a metallic knock during startup or a burning smell.
Replacing the compressor, searching for freon leaks and repairing the electronic board require special tools and qualifications. An attempt to independently interfere with a sealed circuit can permanently damage the equipment.
Regular maintenance, including cleaning the condenser from dust and checking the tightness of the doors, will prolong life your Biryusa refrigerator and will provide a stable operating cycle.
Frequently asked questions (FAQ)
Is it normal that the new Biryusa refrigerator works longer than usual?
Yes, when turned on for the first time or after a long defrost, the unit can work non-stop for up to 24 hours. This is necessary for the initial temperature rise and freezing of the chamber walls. If after a day the mode does not return to normal, it is worth checking the settings.
Why does the refrigerator turn off and immediately turn on with a loud click?
A loud click is the sound of the start relay operating. If the intervals between clicks are very short (less than 5 minutes), most likely the relay is faulty or the compressor has a mechanical defect that prevents it from starting.
Can the refrigerator not turn off due to the heat in the room?
High room temperatures (above +30°C) make it difficult for the condenser to remove heat. In such conditions, the work cycle increases and downtime is reduced. However, the complete absence of shutdowns even in the heat indicates a malfunction.
How often should a thermostat normally click?
On average, a working thermostat closes and opens its contacts 4-6 times per hour. The frequency depends on the set temperature and heat flow. Uniform intervals are a sign of working automation.
Does the amount of food affect the operating time?
A full refrigerator keeps the cold longer, so the compressor can turn on less often, but work longer to cool a large volume. An empty refrigerator cools down faster, but it also heats up more actively from the air when the door is opened.