The situation when Biryusa refrigerator stops turning off and continues to buzz around the clock is a serious signal of a malfunction. During normal operation, the compressor must turn on and off at certain intervals to maintain the set temperature. If the motor runs without interruption, this not only leads to a significant increase in electricity bills, but also creates the risk of complete failure of expensive equipment.
The first thing the owner needs to do is to analyze the accompanying symptoms. Often, continuous operation of the engine is accompanied by the formation of a “fur coat” on the rear wall, insufficient cooling of products or, conversely, their freezing. Understanding the exact symptoms will help narrow down the troubleshooting area even before calling a technician.
Ignoring the problem can lead to combustion compressor, the replacement of which is often not economically feasible. Therefore, it is important to act quickly and consistently, checking from simple causes to more complex technical breakdowns.
⚠️ Attention: If you notice that the compressor is wearing out, and the temperature inside the refrigerator does not drop or, on the contrary, everything turns into ice, immediately defrost the chamber and disconnect the device from the network to carry out initial diagnostics.
Problems with the thermostat and temperature sensors
The most common reason that the refrigerator does not turn offis the failure of the thermostat (thermostat) or electronic temperature sensor. It is this element that informs the control unit or directly to the compressor that the required cold has been achieved. If the contacts stick in the “on” position or the sensor transmits incorrect data, the motor will work endlessly.
In models with mechanical control, thermostat failure is often accompanied by clicks that are heard when trying to adjust, or a complete lack of response to turning the knob. In modern models with a system No Frost or electronic control, the problem may lie in oxidation of the sensor contacts or a break in its wiring.
- 🔌 Check whether the thermostat knob is installed correctly; perhaps it has gone astray to the maximum value.
- ❄️ Listen to the characteristic clicks when changing temperature settings.
- 💡 Pay attention to the indicators: flashing of the "Alarm" lamp often indicates a sensor error.
How to check a thermostat with a multimeter?
To check a mechanical thermostat, you need to remove it, immerse the sensitive tube in cold water with ice and ring the contacts. If the circuit does not open during cooling, the thermostat is faulty and requires replacement.
Replacing the thermostat is a procedure that can be done with your own hands if you have basic skills, however, in electronic models it is better to entrust the diagnostics to professionals so as not to burn the control module.
Refrigerant leak and violation of the tightness of the circuit
The second most common reason for continuous operation is freon leak. When the amount of refrigerant in the system drops below a critical level, the refrigerator is physically unable to reach the set temperature. The sensors detect “heat” and command the compressor to work without stopping, trying to compensate for the lack of refrigerant.
It is not always possible to determine a leak visually, since gas can escape through microcracks in sealed places or through an evaporator hidden in the wall of the housing. Often a sign of a leak is a swelling of the back wall inside the chamber or the appearance of oily spots near the compressor.
It is impossible to independently eliminate the leak and perform a high-quality evacuation of the system with subsequent charging freon R600a or R134a without special equipment. A call to a technician with a full set of tools is required.
☑️ Diagnosis of freon leaks
Wear of sealing rubber and problems with the door
Often owners forget about a simple but important detail - sealing rubber on the door. If the cuff is worn out, cracked, or simply does not fit tightly due to contamination, warm air from the room constantly enters the chamber. The compressor tries to cool this incoming flow and does not turn off.
You can check the tightness using a simple test with a sheet of paper. Clamp the sheet with the refrigerator door around the entire perimeter. If the paper falls out or is pulled out without the slightest resistance, it means that the seal is broken.
| Symptom | Probable cause | Solution method |
|---|---|---|
| The rubber is cracked | Natural wear, aging of the material | Replacing the seal |
| The door is skewed | Weakening of the hinges, overweight of the door | Adjusting the hinges |
| Contamination of the joint | Adhesion of crumbs, grease | Cleaning and degreasing |
| Departure from the body | Deformation of the magnetic tape | Warming with a hairdryer and straightening |
Sometimes it is enough to restore the elasticity of the rubber wash it with soapy water and lubricate it with silicone grease. In more complex cases, it is necessary to replace the seal with a new one, selected according to model number of the Biryusa refrigerator.
Faulty compressor and start relay
If the refrigerator hums but does not turn off, the problem may lie in the very “heart” of the unit - the compressor. Over time, the motor-compressor loses its power and its efficiency decreases. It works, but does not create enough pressure for effective circulation of freon.
The starting relay also often fails. This small element is responsible for starting the engine. If its contacts are burnt or the mechanism is jammed, the compressor may hum, but not start, or operate in emergency mode without shutting down.
- 🔊 Loud hum and clicks may indicate an attempt to start and protection has tripped.
- 🔥 Strong heating of the compressor housing (more than 90 degrees) is a sign overload.
- ⚡ Frequent power outages in the house could damage the motor windings.
⚠️ Attention: Attempting to replace the compressor yourself requires skills in soldering copper pipes, working with open flames and knowledge of electrical circuits. Inept actions can lead to a fire or explosion.
If you suspect a compressor breakdown, it is more rational to consider the cost of repairs in comparison with the purchase of new equipment, since replacing the motor is one of the most expensive procedures.
Environmental influence and operating conditions
Sometimes the reason lies not in a breakdown, but in incorrect operating conditions. If the refrigerator Biryusa is installed next to a heating radiator, in direct sunlight or in a niche without gaps for ventilation, heat exchange is disrupted.
The compressor is forced to work in increased mode to remove heat from the condenser, which, in turn, cannot effectively cool down due to high ambient temperatures or lack of air flow.
It is also worth checking whether the refrigerator is loaded too tightly. Air circulation inside the chambers must be free. If food blocks the ventilation holes (especially in No Frost models), the sensors will read an increased temperature.
Failures in the electronic control module
In modern models of Biryusa refrigerators, the electronic control module is responsible for all processes. Power surges, moisture, or manufacturing defects can cause the board to freeze or fail in its logic.
In this case, the module simply “does not see” the signal that the temperature has been reached or ignores it, continuing to supply voltage to the compressor. Diagnostics requires the use of a special tester and knowledge in the field of radio electronics.
If you notice that strange symbols are lit on the display or indicators are blinking in a chaotic manner, this is a sure sign of an electronics malfunction. Flashing or replacement of the module is required.
Frequently asked questions (FAQ)
How long should the Biryusa refrigerator operate normally?
In normal operation, the coefficient (operating time / total time) is about 30-40%. That is, with a cycle of 1 hour, the compressor should work for 20-30 minutes and rest for 30-40 minutes. If the operating time exceeds 70-80% of the cycle, this is a cause for concern.
Is it possible to use a refrigerator if it does not turn off?
For a short time, it is possible, but this is an emergency mode. Long-term operation without stopping will lead to overheating of the compressor windings, oil burnout, and other engine jamming. It is better to turn off the device and find the reason.
Why does the refrigerator not turn off for a long time after defrosting?
Immediately after defrosting, the refrigerator takes more time (up to 2-3 hours) to reach the first temperature. This is fine. If it does not turn off for more than 5-6 hours, then there is a problem with the thermostat or a freon leak.
How to understand that the compressor has burned out?
If the compressor hums for 5-10 seconds, then a click is heard and it goes silent, and after a while the cycle repeats - most likely the start relay has burned out or The compressor itself is jammed. Also a sign may be the absence of the characteristic low-frequency hum of a running motor when the power is on.