A sudden stop in the operation of household refrigeration equipment always becomes an unpleasant surprise, especially if there are perishable products in the chamber. The Siberian brand Biryusa has established itself as a reliable manufacturer, however, even the highest quality units fail over time. The owner is often faced with a dilemma: call a technician immediately or try to independently understand the cause of the failure.
Correct primary diagnostics allows you to save significant money and time, eliminating false service calls for trifles. In this article, we will analyze the main symptoms of breakdowns characteristic of various models and help you determine in which unit the problem lies. Understanding the principles of operation of the unit is the first step to successful repair.
Initial visual inspection and power check
Before you panic and look for the service center number, you need to conduct a basic power check. Often the problem lies not in the refrigerator itself, but in the outlet or surge protector. Make sure that the plug is firmly inserted into the socket and that the mains voltage is correct. If the indicators on the control panel do not light up, try plugging another appliance into the same outlet, such as a hair dryer or lamp.
⚠️ Attention: Never attempt to disassemble the electrical wiring or plug of the refrigerator unless you have the appropriate qualifications and tools. This may result in electric shock.
Inspect the rear wall of the unit for visible damage. Sometimes rodents chew through cables, or the wire melts from being close to a hot compressor. Also check if the door is pressed against a cabinet or wall, which may prevent it from closing tightly.
It is important to assess the general condition of the sealing rubber. If it is torn or heavily soiled, the cold will escape, causing the compressor to wear out. Dirt and grease on the seal are a common cause of a loose door seal.
☑️ Primary diagnosis
Analysis of the compressor operation and characteristic sounds
The sound of the refrigerator is the main indicator of its health. A smooth, monotonous hum of the motor-compressor is considered normal. However, if you hear clicking, gurgling, or whistling noises, there is a problem. The compressor may hum louder than usual if it overheats or tries to start with a faulty start relay.
Particular attention should be paid to the situation when the motor starts for a few seconds, makes a dull click and turns off. This is a classic symptom jamming of a compressor or failure of the start-up relay. In some models Biryusa with inverter motors, silence may indicate an electronic error rather than a mechanical failure.
Why is the compressor hot?
Compressor in During operation, it heats up to 70-90 degrees Celsius. This is fine. However, if it is hot to such an extent that it is impossible to touch it, or, conversely, is absolutely cold when the engine is running, this is a sign of a malfunction of the circulation system or thermostat.
Fans in systems can also produce extraneous noise. No Frost. If you hear a cracking or grinding noise, there may be a frozen coat on the fan blades or the bearing needs to be replaced. In older models with a drip defrosting system, gurgling sounds indicate normal refrigerant flow, but loud gurgling may indicate airing of the system.
Problems with temperature conditions and cooling
The most common complaint from users is insufficient cooling or, conversely, freezing of food in the refrigerator compartment. If it is warm in the main chamber and an ice crust has formed in the freezer, the defrost cycle is most likely broken. In models with No Frost this is often associated with failure of the defrost heating element or defrost sensor.
When the refrigerator stops freezing completely, but the compressor runs continuously, this may indicate a freon leak. In this case, the condenser (grid at the back) will be cold or lukewarm, and not hot, as it should be during normal operation. Leakage often occurs in the foamed part of the case or in places where pipes are soldered.
| Symptom | Probable cause | Difficulty of repair |
|---|---|---|
| Ice in the refrigerator compartment | Malfunction defrost sensor | Medium |
| Heat in both compartments | Refrigerant leak | High |
| Compressor does not turn on | Start relay or thermostat | Low |
| Continuous operation of the motor | Wear of the seal or leakage | Medium/High |
Overloading with products can also cause poor cooling. If the air channels in the system No Frost are clogged with bags or boxes, cold air simply does not circulate through the chamber. It is necessary to leave free space for the movement of air flows.
Diagnostics of the No Frost defrosting system
Modern models Biryusa are increasingly equipped with an automatic defrosting system. If you find that the back wall of the refrigerator compartment is covered with a thick layer of ice, and there is water under the drawers, then the defrost cycle is broken. The system consists of several key elements: a heater (heating element), a defrost sensor and a timer (or electronic module).
Most often it fails itself Defrost heating element. It is a tube or open coil that is supposed to heat up and melt the ice on the evaporator. You can check it with a multimeter for an open circuit. Also, the defrost sensor, which should inform the control module about the evaporator temperature, often fails.
⚠️ Attention: Before checking the electrical components of the defrosting system, be sure to unplug the refrigerator and wait until the ice is completely defrosted. Water and electricity are incompatible!
Sometimes the problem lies in the drainage system. If the hole for water drainage is clogged with crumbs or mold, the melt water does not go into the pan, but overflows and freezes at the bottom of the chamber. Cleaning the drainage with a soft wire or a syringe with warm water often solves the problem without replacing parts.
Malfunctions of the thermostat and electronic module
In mechanical models, the thermostat is responsible for maintaining the temperature. If the refrigerator “prays” (works without stopping) or does not turn on at all, it falls on it first. In mechanical thermostats, freon may evaporate inside the bellows tube, causing the contacts to open or close randomly.
Electronic control modules in models Biryusa with a display are more sensitive to power surges. A blown fuse on the board or a breakdown of the varistor can completely de-energize the unit. Visually, traces of burning or swollen capacitors are often visible on the board.
Replacing the thermostat in mechanical refrigerators is a relatively simple procedure. You need to remove the old device, install a new one with similar markings and connect the contacts correctly. With electronics it is more difficult: it often requires resoldering of components or a complete replacement of the module, which is better to entrust to a specialist.
Mechanical damage and wear of seals
The rubber seal around the perimeter of the door is a barrier that retains cold. Over time, rubber hardens, cracks or stretches. Checking the tightness of the fit is carried out using a sheet of paper: clamp it with the door and try to pull it out. If the sheet is pulled out without effort anywhere along the perimeter, the seal requires replacement or restoration.
Sometimes you can restore elasticity by heating the rubber with a hairdryer or soaking it in hot water. However, if the material is cracked, only replacement will help. A loose door causes the compressor to work continuously, which leads to overheating and increased energy consumption.
It is also worth checking the door hinges. If the door is warped, it will not fit tightly even with a new seal. Hinge adjustment is usually done by tightening the bolts at the top or bottom of the door leaf. In some models Biryusa the hinges can be moved to the other side.
Frequently asked questions and answers (FAQ)
Why does the Biryusa refrigerator make a lot of noise when operating?
The noise can be caused by improper installation (the unit should stand level and not touch the walls), wear of the fan bearings (in No Frost) or vibration of the tubes. If the compressor itself is humming, it may require replacement or installation of anti-vibration pads.
What do the flashing indicators on the panel mean?
Flashing temperature indicators usually indicate an increase in the temperature in the chamber above the permissible norm. This may be a one-time event after loading warm food. If the blinking continues for a long time, check the tightness of the door closing and the operation of the compressor.
Is it possible to operate the refrigerator if it is standing on its side?
It is strictly forbidden to turn on the unit immediately after transporting it on its side. Oil from the compressor may have leaked into the circulation system. It is necessary to let the refrigerator stand upright for at least 4-6 hours (or better yet, a day) before turning it on.
How often should Biryusa with a drip system be defrosted?
Although the system is called “drip” and defrosts the evaporator automatically, you should not completely rely on it. It is recommended to completely defrost and wash the refrigerator at least once every 6-8 months to remove bacteria and odors.
Why does water form in the refrigerator compartment?
Most often, the drainage hole becomes clogged. Find it on the back wall inside the chamber, clean it with a brush or cotton swab. Water may also appear if food lies close to the back wall and freezes to it.