Owners of household appliances are often faced with a situation where a normally operating unit ceases to perform its functions efficiently. If you notice that Biryusa refrigerator it is not cooling well or has stopped freezing altogether, this is a signal about the need for urgent diagnosis. Ignoring the problem can lead to product damage and costly repairs in the future.
A decrease in performance is often associated with natural wear of parts or violation of operating conditions. However, in some cases, the culprit is a simple power outage or incorrect installation of the case. Understanding the principles of operation refrigeration unit will help you quickly identify the root of evil.
In this article we will analyze in detail the main technical and household causes of failures. You will learn how to distinguish a breakdown that you can fix yourself from a complex malfunction that requires the intervention of a specialist. Let's find out why your Biryusa started to work worse.
Checking operating conditions and placement
Before looking for complex technical breakdowns, it is necessary to exclude external factors. Often the answer to the question why Biryusa refrigerator it freezes poorly lies in a banal violation of installation rules. The device should be placed on a flat surface away from heating devices and direct sunlight.
Particular attention should be paid to the gap between the back wall of the case and the wall of the room. For normal air circulation through condenser a distance of at least 10-15 centimeters is required. If the radiator is pressed close to the wall, heat is not removed and the efficiency of the system decreases.
Also check the position of the door. If it does not fit tightly due to distortion or contamination of the seal, warm air constantly enters the chamber. The compressor tries to compensate for heat loss, working for wear, but the temperature still does not drop to the required values.
⚠️ Attention: Installing the refrigerator next to a gas stove or oven without a heat-insulating screen can lead to overheating of the motor and its failure.
Check whether air access to the bottom of the case is blocked. Skirting boards or decorative boxes often block the ventilation holes, which is critical for models with No Frost system or improved ventilation.
Malfunctions of the thermostat and temperature sensors
One of the most common reasons why Biryusa refrigerator stopped freezing is the failure of the thermostat. This element is responsible for turning the compressor on and off depending on the temperature inside the chamber. If the thermostat is “stuck” in the “off” position, the motor simply will not start.
In modern models with electronic control, the control function is performed temperature sensors (thermistors). They transmit signals to the control module. If the sensor breaks down, the module receives incorrect data and does not give a command to cool, even if the chamber is warm.
Diagnostics of a mechanical thermostat is often carried out by the method of exclusion. You can try to temporarily close the contacts with wires (with the device disconnected from the network!). If after this manipulation the compressor starts working, then the problem is in the thermostat.
- 🔧 Symptoms of failure: the compressor hums, but does not turn on, or works continuously without turning off.
- ❄️ Check: turn the thermostat knob all the way; if there is no click and the motor is silent, the part is faulty.
- ⚙️ Electronics: If the sensors fail, error codes or flashing indicators may appear on the display.
Is it possible to drive with a faulty thermostat?
You can travel, but the food will spoil. Moreover, if the thermostat does not turn off the compressor, this will lead to its overheating and eventual combustion of the windings.
Problems with the compressor and start relay
The heart of any refrigerator is the compressor. If refrigeration unit Biryusa hums, clicks, but does not start, or is completely silent, the problem may be in the start-up relay. This device protects the motor from overloads and helps it start.
Often the relay simply wears out or burns out from power surges. In this case, replacing it takes a few minutes and does not require calling a technician. However, if after replacing the relay the situation does not change, and the motor hums and overheats, it is possible that the compressor itself is jammed compressor.
In some cases, there is a situation where the compressor works constantly, but there is no cold. This may indicate that the compression has lost its properties. The motor drives freon in a circle, but does not create the necessary pressure for effective heat exchange.
⚠️ Attention: If you hear a loud knock when starting or a burning smell, immediately unplug the device. Further operation may lead to a fire.
To diagnose the condition of the motor, professionals use pressure gauges to measure the discharge pressure. At home, you can only assess the external signs: the temperature of the motor housing and the nature of the sounds produced.
Freon leak and capillary system clogged
If the motor is working normally, but the temperature in the chambers does not drop, there is a high probability of a refrigerant leak. Freon circulates in a closed circuit, and its quantity may decrease over time due to microcracks in the tubes or corrosion of the evaporator.
Another common problem is a clogged capillary tube. Ice plugs may form in the circulation system or oxidation products may enter, blocking the movement of gas. In this case, one part of the refrigerator may freeze, while the other remains warm.
Signs of a freon leak are often visual: swelling of the back wall, the appearance of yellow rust spots where the tubes are soldered, or oily marks under the refrigerator. However, most often the leak occurs inside the foamed housing, and it can only be noticed by the absence of cold.
| Symptom | Freon leak | Clogged system | Normal |
|---|---|---|---|
| Condenser temperature | Cold or slightly warm | Hot at the beginning, cold after clogged | Evenly warm |
| Compressor operation | Works intermittently or constantly | Works with overload, may turn off | Cyclic operation |
| Frost on the evaporator | Absent or uneven | Absent or only at the beginning | Uniform layer |
| Sounds during operation | Normal or gurgling | Gurgling, hissing | Uniform hum |
Restoring tightness and refilling refrigerant are complex procedures that require special equipment. It is almost impossible to independently repair a leak or break through an ice plug in a capillary without a vacuum pump and scales.
Failures in the defrosting system (for No Frost models)
If your Biryusa refrigerator equipped with a No Frost system, but has stopped freezing, the reason may lie in the automatic defrosting system. In such models, ice should not form on the evaporator, since it is periodically removed by the heating element.
If the defrosting heating element, timer or defrost sensor fails, the evaporator becomes overgrown with a “fur coat”. Air stops circulating through the heat exchanger clogged with ice, and the cold does not enter the chambers. Outwardly, this may look like normal operation of the compressor, but without results.
To check this version, you need to defrost the refrigerator completely (within 24 hours). If after turning it on it starts to freeze, but after a week or two the problem returns, it means that the defrosting system is not working.
- 🌡️ Defrosting heating element: it burns out most often, requires testing with a multimeter.
- ⏱️ Timer: mechanical or electronic unit that controls the cycles.
- 🌡️ Sensor: controls the temperature of the evaporator and gives a command to turn on the heating element.
It is important to understand that constant operation of the compressor when the evaporator is clogged with ice leads to its rapid wear. Therefore, it is impossible to ignore the build-up of ice inside the case (even if it is not visible from the outside).
☑️ Diagnostics of the No Frost system
When you need to call a specialist
There are a number of situations when self-repair not only will not help, but and will make the situation worse. If refrigeration circuit damaged, soldering and vacuuming of the system is required, which cannot be done at home without a professional tool.
Also, do not try to repair the electronics of the control module without the appropriate knowledge. An attempt to “reflash” the board or replace burnt capacitors can lead to a short circuit and complete failure of the equipment.
You need to contact a specialist if:
- 🛠️ You find oily stains under the refrigerator or on the pipes.
- 🔥 The compressor is hot to the touch and makes intermittent clicks.
- 💨 There is a smell of burning or burnt insulation coming from the refrigerator.
⚠️ Attention: By opening the sealed circuit or changing the compressor yourself, you will lose the warranty on the product. This is especially true for Biryusa equipment, since the brand provides long warranty periods.
A qualified technician will conduct a full diagnosis, check the tightness of the system and select original spare parts. This will save you money in the long run by extending the life of the appliance.
FAQ: Frequently Asked Questions
Why does the Biryusa refrigerator freeze but does not turn off?
This may indicate a freon leak, compressor wear, or a malfunction of the thermostat. The unit tries to compensate for the lack of cold by constant operation, but does not reach the set temperature.
How long should a new refrigerator cool down after transportation?
If the transportation was vertical, 2-4 hours is enough. If it is horizontal, you need to let the oil drain into the compressor for 12-24 hours before turning it on.
Is it possible to use the Biryusa refrigerator if it is on the balcony?
Most models are designed to operate at ambient temperatures from +10 to +32 degrees. Operation on an unheated balcony in winter or under direct sun in summer will lead to breakdown.
What to do if ice is frozen in the freezer, but it is warm in the refrigerator?
Most likely, the capillary system is clogged or there is a freon leak. It is also possible that the seal of the freezer door is broken. Diagnostics by a specialist is required.