The situation when the refrigerator Biryusa stops freezing always catches taken by surprise. Products begin to deteriorate, and water appears on the shelves or, conversely, everything becomes covered with a thick coat of ice. These are classic signs of a malfunctioning refrigeration circuit or defrost system. Owners often panic, believing that the unit will have to be thrown away, but in many cases do-it-yourself repair it is quite real and does not require complex equipment.
First you need to understand the nature of the breakdown: one camera or both do not work, Is the engine humming or is there silence? Further actions depend on this. Refrigeration unit is a complex system where all elements are interconnected. If one unit fails, the entire cooling chain suffers.
In this article we will analyze in detail the main reasons why Biryusa it freezes poorly, and we will propose an action algorithm. You will learn to distinguish a banal defrost from a serious freon leak or compressor breakdown. Remember that timely diagnosis will help save your budget and preserve products.
Primary diagnosis: external signs and simple checks
Before grabbing the tools, it is worth conducting a visual inspection. Often the reason lies in little things that are easy to miss. If refrigerator works, but the temperature inside is higher than normal, check the tightness of the door. A loosely closed door leads to a constant flow of warm air, which the system cannot cope with.
Pay attention to the nature of the motor operation. If it hums constantly without stopping, it may indicate a refrigerant leak or a problem with the thermostat. In the case when the motor is silent and the light inside is on, most likely the compressor or the starting relay has failed.
- 🔍 Check whether the defrost indicator is on (if your model has one).
- 🔍 Make sure that the power cord is working properly and is tightly inserted into the outlet.
- 🔍 Inspect the rubber seal for cracks and dirt.
- 🔍 Check whether the food has moved to the back wall, blocking the outlet of cold air.
It is also important to check the thermostat settings. Sometimes children or pets may accidentally move the knob to the minimum position. Electronically controlled models may have experienced a software glitch. Try disconnecting the device from the network for 15–20 minutes to reset the controller errors.
⚠️ Attention! If you smell burnt wiring or see sparks, immediately disconnect the refrigerator from the power supply and do not try to turn it on again until the technician arrives.
Problems with the defrosting system: ice and ice coat
One of the most common reasons why Biryusa does not freeze is a malfunction system No Frost or drip defrosting. If the evaporator is covered with ice, cold air simply cannot circulate through the chambers. Visually, this manifests itself in the form of a thick layer of frost on the rear wall or, conversely, a complete absence of frost when the compressor is running.
The problem is often based on failure Defrost heating element. This heating element should turn on periodically and melt the ice on the evaporator. If it burns out, ice builds up and blocks fans and air ducts. As a result, the chamber is warm, and behind the casing there is a ball of ice.
It is also worth checking the defrost sensor. It signals to the controller that the evaporator has warmed up and gives a command to turn off the heating element. If the sensor is lying, the defrost system will not start on time. In some models Biryusa there is a breakdown of the defrost timer, which does not physically switch operating modes.
☑️ Checking the defrost system
To diagnose the heating element you will need a multimeter. It is necessary to “ring” the spiral for resistance. If the device shows a break (infinity), the element must be replaced. Also check the integrity of the wires going to the heater; they often rot or are interrupted by ice.
⚠️ Attention! Never try to break ice with a knife or sharp objects. You can damage the evaporator tubes, which will lead to an immediate leak of freon and expensive repairs.
Freon leak: how to detect and what to do
If compressor works continuously, hums, but there is no cold, and the condenser (grid at the back) remains cold or slightly warm, there is a high probability of a leak refrigerant. Freon is a working fluid that circulates through the system, transferring heat. Without it, the cooling process is physically impossible.
Leaks in Biryusa often occur in the foamed part of the housing or in places where tubes are soldered. It is difficult to see them visually. An indirect sign may be swelling of the refrigerator wall or the appearance of oily spots under the unit (oil comes out along with gas).
| Symptom | Probable cause | Actions |
|---|---|---|
| Compressor is hot, grille is cold | Freon leak or blockage | Call a technician to find a leak |
| The motor turns on for 10-20 seconds and clicks | Lack freon or breakdown of the starting switch | Checking the starting relay, measuring pressure |
| The chamber is warm, there is no frost on the evaporator | Complete refrigerant leak | Refilling the system and soldering |
| Frost only at the entrance of the tubes | Partial leak or blockage | Diagnostics of the capillary tube |
It is almost impossible to eliminate the leak and refill it yourself refrigeration circuit without special equipment (vacuum pump, pressure gauge station, scales). Attempts to simply “add gas” without looking for a hole will only lead to a short-term effect.
Is it possible to fill the refrigerator yourself?
Theoretically, it is possible if you have the equipment and skills in soldering copper pipes. However, this is not practical for a household user: buying a freon cylinder, oil and tools will cost more than calling a technician. In addition, without evacuation of the system, moisture will remain in the circuit, which will quickly damage the compressor.
Faults of the compressor and start relay
The heart of the refrigerator is motor-compressor. If it doesn't start, there won't be any cold anywhere. Often the problem lies not in the motor itself, but in the start-up relay. This is a small box placed over the compressor contacts. Inside there is a starting capacitor and a winding switching mechanism.
If the relay is faulty, it does not provide an impulse to start the engine. You can hear characteristic clicks: the engine tries to start, hums for a few seconds, then the shutdown click is heard, and there is silence. After some time, the cycle repeats. In this case, replacing the relay is a matter of 15 minutes.
A more serious problem is an interturn short circuit in the compressor windings or its mechanical wear. If the shaft is jammed, the motor will hum and heat up, but rotation will not occur. In such cases, replacement unit entirely is required, which is one of the most expensive types of repairs.
- 🛠 Check the relay: remove it, shake it. If you hear a ringing inside (the ceramic core is broken), a replacement is needed.
- 🛠 Measure the resistance of the compressor windings with a multimeter. It should be within 10–30 Ohms.
- 🛠 Pay attention to the temperature of the motor housing. Too much heating indicates overload.
When replacing a compressor, it is important to choose a model with similar power and refrigerant characteristics. For Turks Danfoss (Secop) or Atlant motors are often used. It is also necessary to replace the filter-drier whenever the circuit is opened.
⚠️ Attention! Technical characteristics of refrigerators may vary depending on the year of manufacture. Always check the markings on the nameplate of your device before ordering spare parts.
Failure of the thermostat and temperature sensors
The thermostat (thermostat) is the “brain” that decides when to turn the motor on and off. If it fails, the refrigerator may either not turn on at all, or work without interruption, freezing everything into ice. In mechanical models it is a simple “twist” with a capillary tube, in electronic models it is complex sensors.
In models with electronic control, the temperature is controlled NTC sensors. They change their resistance depending on the temperature. If the sensor is lying, the controller receives incorrect data and does not start the compressor, although the chamber is warm. The air sensor or evaporator sensor often breaks down.
Diagnostics of the thermostat is simple: close the contacts going to it (after turning off the refrigerator!). If the motor starts working after being plugged in, the thermostat is faulty. For electronic sensors, you need a multimeter in the mode of measuring resistance (Ohm) and comparing the readings with a table for a specific temperature.
Replacing the thermostat in Biryuse usually does not cause any difficulties. The main thing is to correctly install the sensitive element in its normal place. In two-chamber models, the thermostat is most often responsible for the freezer chamber, and the evaporator of the main chamber is cooled according to the residual principle.
Clogged capillary tube: a hidden problem
The capillary tube is a thin copper channel in which throttling occurs (sharp drop in pressure) freon. Its internal diameter is very small, so it is sensitive to contamination. If moisture, dirt or oil breakdown products get into the system, a ice plug or blockage may form.
The symptoms of a blockage are similar to a leak: the compressor works, but there is no cold. However, the condenser may be only partially hot, and at the site of the blockage (usually at the entrance to the evaporator), swelling or, conversely, the absence of frost is observed. Sometimes “massaging” the tube helps, but this is a temporary measure.
To completely eliminate the problem you need to:
- Cut off the filter drier.
- Purge the system with nitrogen under high pressure.
- Replace the filter and refill the system.
This procedure requires qualifications and equipment. Blowing out the system yourself with a compressor from a vacuum cleaner is often not enough, since the moisture that caused the blockage is not removed. Moisture in the system is the main enemy; it turns into ice precisely in the bottleneck of the capillary, blocking the flow of gas.
When you need to call a professional technician
Despite the desire to save money, there are situations when do-it-yourself repair is impractical or dangerous. If the problem is related to the sealed circuit (leak, compressor replacement, blockage), it is better to contact the service. The craftsmen have equipment for vacuuming and precise filling, and also provide a guarantee on the work.
It is also worth calling a specialist if you are not confident in your abilities when working with electricity. Connection errors can lead to burning of the wiring or even a fire. Professional diagnostics are often cheaper than buying unnecessary parts through trial and error.
Don't forget that Biryusa is a reliable brand and many parts are available. However, correct diagnosis is 90% of the success of the repair. Do not ignore the first signs of a malfunction: the appearance of a puddle under the refrigerator, a change in the operating sound or switching mode.
Is it worth repairing an old Biryusa refrigerator?
Repair makes sense if the compressor is working properly, and the problem is in the electronics or defrost system. If the motor burns out or there is a leak in the foamed part of the case, the cost of repair can be 60-70% of the price of a new device, and then it is easier to buy new equipment.
Prevention: how to extend the life of the refrigerator
To refrigerator serve for a long time, follow simple operating rules. Clean the drainage hole in the refrigerator compartment regularly to prevent condensation from stagnating. Once a year, it is advisable to defrost the unit completely (if it is not No Frost), even if it does not require defrosting according to the instructions.
Do not put hot foods inside. This puts extra stress on the compressor and leads to the formation of excess moisture, which freezes in hard-to-reach places. Also keep an eye on the distance to the wall: the rear grille should be well ventilated.
- ❄️ Do not fill the chamber with food to capacity, air must circulate.
- ❄️ Check the integrity of the seal by wiping it with a soft cloth.
- ❄️ Install the refrigerator on a flat surface using adjustable feet.
Following these recommendations will help avoid situations when Biryusa stops freezing. Taking good care of your equipment pays off with a long service life and the absence of sudden breakdowns at the most inopportune moment.
Why does the Biryusa refrigerator freeze but does not turn off?
This is a sign that the system does not reach the set temperature. Reasons: freon leak, compressor wear (low performance), violation of the thermal insulation of the housing or a malfunction of the thermostat, which “does not see” the cold.
Is it possible to use a refrigerator if it does not freeze well?
Short-term - yes, but food can spoil. Long-term operation in this mode is harmful to the compressor, as it wears out without rest. It is better to eliminate the malfunction.
How often do you need to defrost Biryusa with the No Frost system?
The No Frost system involves automatic defrosting of the evaporator. However, once a year (or if an unpleasant odor appears), it is recommended to completely defrost and wash the chambers for hygiene and clean the drainage.
What to do if the refrigerator does not work after defrosting?
You may have damaged the sensor or wiring during defrosting. Let the refrigerator stand unplugged for 2-3 hours, then turn it back on. If it doesn’t work, check the start relay and thermostat.
Why is there ice in the freezer, but warm in the refrigerator?
Most often, these are air supply channels clogged with ice (in No Frost systems) or a malfunction of the damper. There may also be a problem with the fan, which does not drive cold air from the freezer into the main chamber.