Modern refrigerators of the brand Biryusa, equipped with the No Frost or Low Frost system, are complex climate control equipment where air circulation plays a key role. Owners are often faced with the need to find fanwhen the unit stops freezing or begins to make strange sounds. Understanding where exactly this unit is located is the first and most important step before starting any diagnostic repair or preventive maintenance.
Unlike older models with a drip system, where cooling occurred naturally, in newer modifications a special electric motor with an impeller is responsible for the movement of air masses. Its location directly depends on the design of the specific model Biryusa and the type of cooling system installed. Incorrect determination of the installation location can lead to damage to the plastic panels or disruption of the tightness of the circuit, so it is important to clearly understand the internal architecture of your device.
In this article we will analyze in detail how to find a fan in various modifications, what tools will be needed to access it and what to pay special attention to when dismantling. You will learn about the nuances of the design of the evaporation unit and receive a step-by-step algorithm of actions that will help you avoid common mistakes when repairing household appliances yourself.
The design features of the No Frost system in Biryusa
The system No Frost, which is installed in many models of refrigerators Biryusa, is radically different from a traditional cooling scheme. Its operation is based on the principle of forced circulation of cold air, for which the fan is responsible. Without this component, uniform temperature distribution throughout the chambers would be impossible, which would lead to the formation of ice coats and spoilage of food.
The fan in such models is usually integrated directly into the evaporator unit. This engineering solution allows us to minimize cold losses and reduce the noise level during compressor operation. The air, passing through the evaporator radiator, is cooled and then, under the pressure of the blades, is forced into the refrigerator and freezer chambers through special channels.
⚠️ Attention: The design of refrigerators Biryusa may vary slightly depending on the year of manufacture and the specific series. Always check the technical documentation of your device before starting disassembly.
The key element here is not only the motor itself, but also the damper system that regulates the air flow. If the fan is positioned incorrectly or something interferes with its operation, the entire temperature balancing system is disrupted. That is why troubleshooting often begins with checking the rotation of the impeller and the condition of its seat.
Where the fan is located in the freezer compartment
In the vast majority of refrigerator models Biryusa with an automatic defrosting system, the main fan is located in freezer. This is logical, since this is where the evaporator is located, which generates the cold. To access it, you need to completely empty the freezer of food and remove all shelves and drawers.
The required unit is hidden behind the back wall of the chamber. This wall is a plastic panel that is secured with latches or screws. On some models Turk the panel can be divided into several sections, which makes it easier to access certain components without complete disassembly. The fan is usually mounted on a bracket directly above or to the side of the evaporator coil.
- 🔍 Visually locate the grille or holes in the back panel through which cold air exits - the fan is often located just behind them.
- 🔧 Removing the panel may be necessary a Phillips screwdriver, as some screws may be hidden under decorative plugs.
- ❄️ Pay attention to the condition of the seal around the perimeter of the panel so as not to damage it during dismantling.
After removing the back wall, you will have access to evaporator and the fan. The motor can be mounted on rubber shock absorbers to reduce vibration. It is important to carefully disconnect the power wires, having first remembered or photographed the connection diagram, since the colors of the wires in different batches Biryusa may differ.
☑️ Preparing for access to the freezer
Location in models with a zone freshness and dual-circuit system
More complex models of refrigerators Biryusahaving separate cooling circuits for the refrigerator and freezer compartments can be equipped with additional fans. In such devices, the main circulation motor remains in the freezer, but there may be an auxiliary fan in the zone freshness or zero chamber.
This additional fan is usually smaller in size and located in the upper part of the refrigerator compartment, often hidden behind the decorative panel of the chamber ceiling or behind the rear wall in the vegetable compartment area. Its task is to provide intensive air exchange in the area intended for storing meat, fish and vegetables, maintaining a stable temperature there.
Access to this unit is often more difficult than to the main freezer fan. Sometimes it is necessary to remove not only the internal panels, but also partially dismantle the door or top cover of the refrigerator. In models with a display on the door, the wires to the fan may pass through a loop connector, which requires special care.
| Model type Biryusa | Location of the main fan | Presence of a second fan | Difficulty of access |
|---|---|---|---|
| Single-compressor No Frost | Freezer compartment (behind the back wall) | No | Medium |
| Two-compressor | Freezer compartment | Possibly in the refrigerator | High |
| Models with zone "0" | Freezer compartment | Yes, in the zone freshness | High |
| Combined (Low Frost) | Technical compartment at the back | No | Low |
Fans in older models and the Low Frost system
In classic models Biryusa with a drip cooling system, there are no fans inside the chambers. Air circulation there occurs due to natural convection: cold air sinks down and warm air rises. However, even in such refrigerators there may be a fan, but it is located outside.
We are talking about a fan condenser, which is located in the lower rear part of the unit, near the compressor. Its job is to blow air across the hot condenser (the black grille at the back), helping to remove heat from the refrigerant. If this fan does not work, the refrigerator may freeze worse or the compressor will work non-stop, overheating.
What is the danger of condenser fan failure?
The lack of airflow to the condenser leads to a sharp increase in pressure in the system. The compressor operates with overload, which reduces its service life and can lead to expensive repairs or replacement of the compressor motor. In some cases, a thermal protection relay is triggered.
To access this fan, you do not need to open the internal chambers. Simply move the refrigerator away from the wall, remove the lower rear cover (if there is one), or simply gain access to the engine compartment. The fan is attached to the compressor casing or to the condenser frame.
In systems Low Frost, which are an intermediate link between the drip system and complete No Frost, the fan can also be located in the technical compartment or integrated into the rear wall of the freezer, but the design of the evaporator there is simplified. Ice forms in such systems, but much more slowly, and the fan helps to evenly distribute the cold, minimizing local hypothermia.
Algorithm for finding and dismantling a fan
The process of finding and removing a fan requires consistency and accuracy. First you need to fully de-energize refrigerator by removing the plug from the socket. This is critical for safety as you will be working with electrical components and possibly a damp environment.
After defrosting and removing the internal panels as described above, you will see the fan itself. It is a plastic case with an impeller inside and an electric motor. Fastening is usually carried out with three or four screws to a metal bracket or plastic evaporator housing.
- 🛠️ Unscrew the mounting screws holding the fan housing.
- 🔌 Carefully disconnect the connector with the power wires. Do not pull the wires, hold on to the plastic part of the chip.
- 🧊 Check whether the fan is stuck to the ice. If so, let the ice melt completely so as not to break the plastic.
When dismantling, pay attention to the presence of rubber bushings or gaskets at the attachment points. They dampen vibration and their loss will result in noise after assembly. Also check the condition of the impeller: there should be no cracks on it, and the axis should rotate freely, without jamming.
⚠️ Attention: The plastic in the freezer becomes brittle after prolonged use. Perform all actions to detach panels and screws with minimal force, pre-heating the plastic with a hair dryer, if necessary.
Typical faults and diagnostics
The most common problem faced by refrigerator owners Biryusais the fan stopping or the appearance of a loud hum. If the fan doesn't spin, the air stops circulating, and the freezer may be cold and the refrigerator compartment warm. This occurs due to failure of the electric motor or jamming of the impeller.
Extraneous noise, crackling or humming often indicates wear of the sliding bearings inside the fan motor or the entry of a foreign object (a piece of ice, a label) into the rotation zone of the blades. In some cases, the impeller may become deformed and touch the walls of the housing.
For diagnostics, you can apply voltage to the fan directly (observing polarity and voltage, usually 220V AC or 12V DC, depending on the model) to check its operation outside the refrigerator. If, when power is applied, the impeller does not rotate or rotates with difficulty, the component requires replacement.
Replacement and preventive maintenance of the unit
Replacing a fan in the refrigerator Biryusa is a procedure that can be performed at home if you have basic skills. The main thing is to choose an analogue with identical geometric dimensions and electrical characteristics. The part number can be found on the marking of the old motor.
Install the new fan in place, secure with screws and connect the connector. Before assembling the back panel, turn on the refrigerator and make sure that the fan is running and making a smooth, quiet sound. Make sure that the wires do not touch the rotating impeller.
Prevention involves regular defrosting (even for No Frost systems it is recommended to give the equipment a rest once a year) and checking the cleanliness of the back wall. The accumulation of dust and fluff on the blades can lead to imbalance and increased wear of the bearings.
Is it possible to operate the Biryusa refrigerator if the fan does not work?
Short-term operation is possible, but undesirable. Without air circulation, the refrigerator will work harder, trying to reach the temperature. This will lead to excessive energy consumption and possible failure of the compressor. In the refrigerator compartment, food may begin to deteriorate due to insufficient cooling.
How often do you need to change the fan in the refrigerator?
The service life of modern fans is on average 5-7 years of continuous operation. Replacement is required only when symptoms of a malfunction appear: noise, rotation stoppage or a burning smell. No scheduled replacement is required.
Why does the fan work intermittently?
In refrigerators Biryusa with electronic control, the fan can turn on only when the compressor is running and the dampers are open. It can also turn off when the door is opened (if there is a corresponding sensor) or during the defrost cycle, so as not to blow warm air through the chamber.
Where to buy an original fan for Biryusa?
It is best to look for original spare parts and high-quality analogues in specialized spare parts stores for household appliances or from official dealers of the brand. When ordering, be sure to indicate the full model of your refrigerator.