Finding the location of the Biryusa refrigerator is often the first step in diagnosing cooling problems. The owner may be faced with a situation where the unit stops turning off, works without interruptions, or, conversely, does not reach the desired temperature. Understanding the design is necessary for independent inspection or calling a specialist with an already purchased spare part. thermostat on the Biryusa refrigerator, is often the first step in diagnosing cooling problems. The owner may be faced with a situation where the unit stops turning off, works without interruptions, or, conversely, does not reach the desired temperature. Understanding the design is necessary for independent inspection or calling a specialist with an already purchased spare part.
The design of refrigerators of this brand, especially classic models, involves several options for installing a temperature sensor. The location of the element directly depends on the series of the device and the type of defrosting system. In some cases, the regulator handle is moved outside, in others, the entire mechanism is hidden inside the case.
Before proceeding with disassembly, it is important to determine which unit has failed. Thermostat is responsible for turning the compressor on and off, responding to changes in temperature in the chamber. If you notice that the Biryusa refrigerator is not working correctly, localizing this element will be a key task for further repairs.
External signs and types of location of regulators
Primary diagnosis begins with a visual inspection of the inside of the refrigeration chamber. Most classic Biryusa models, such as series 6, 8, 10 and 14, have a temperature controller located outside. Usually it is a rotary knob or slider located inside the camera.
However, in more modern or specific modifications, the design may differ. For example, in some models with a system No Frost or electronic control, a mechanical thermostat may be absent as such, giving way to electronic sensors. In such cases, searching for a mechanical knob will be useless.
⚠️ Attention: If there is no knob with numbers or a scale on the inner wall of the chamber, do not try to look for a mechanical thermostat. It is likely that your model is equipped with an electronic control module, and diagnostics require a different approach.
It is also important to distinguish between the handle itself and the mounting location of the thermostat housing. The handle only turns the rod, and itself mechanism is located behind the plastic panel or directly in the wall. Understanding this difference will help you avoid unnecessary damage to the plastic when trying to get to the insides.
Classic arrangement in models with a drip system
The most common option for Biryusa refrigerators is to install a thermostat in the upper right corner of the refrigerator compartment. This is where the plastic lighting lamp is most often located, into which the adjustment mechanism is integrated. This is typical for popular models such as Biryusa 133, 134, 135 and their modifications.
To access the contacts and the thermostat body itself in such models, it is necessary to remove the lampshade. It is usually secured with snaps or a single screw. After removing the plastic, you will be presented with a thermostatto which wires and a capillary tube are connected.
In some older modifications, for example, in the legendary series 6 and 8, the regulator can be moved closer to the center of the top of the chamber or even located under the top shelf. In such cases, you need to carefully inspect the area around the evaporator. The capillary tube of the sensor is often attached to the back wall or hidden behind a decorative panel.
Particular attention should be paid to models with two compressors. In them, thermostats are installed separately for each chamber. In the refrigerator compartment, the principle of arrangement remains the same - the top part, the lampshade or the panel. In the freezer compartment, if it is separate, the regulator is often hidden behind the top cover or side panel.
Specifics of models with the No Frost system
Biryusa refrigerators with the system No Frost have a fundamentally different design of the temperature control system. Here, a mechanical thermostat is less common, since climate control is carried out electronically. However, in transitional models or budget versions, mechanics may still be present.
If your No Frost refrigerator does have a mechanical thermostat installed, it is most often hidden behind the top decorative panel in the refrigerator compartment. This may be a plastic cover that also hides the fan control unit. Getting to it is more difficult than in drop models.
To remove it, you will need to remove the top cover of the camera, which often involves removing several screws and carefully snapping off the plastic clips. Under the panel you will see a block to which the wires are connected. It is important not to confuse the thermostat with a defrost timer or defrost sensor, which are also located in this zone.
| System type | Probable location | Access | Features |
|---|---|---|---|
| Drip (Static) | Light lamp (inside) | Removing the lamp lamp | Handle on the rod |
| No Frost (Mechanics) | Under the top panel | Removing the cover | Hidden installation |
| No Frost (Electronics) | Absent | Not applicable | Board management |
| Two-compressor | Separately in each chamber | Different | Two thermostats |
Access to the thermostat: step-by-step instructions
The process of gaining access to the thermostat requires compliance with safety precautions and a certain sequence of actions. First of all, you need to completely turn off the power to the Biryusa refrigerator by unplugging the cord from the outlet. Working with live electrical components is strictly prohibited.
Next, clear the space in front of the refrigerator and remove all food from the top of the refrigerator compartment. If access to the thermostat is in the lampshade, you need to carefully pry it off with a plastic card or screwdriver. In models where the handle sits tightly, you may need to remove the handle itself by pulling it towards you.
☑️ Preparation for access
After removing the decorative panel or lampshade, a view of the thermostat housing will open. It is a metal or plastic parallelepiped with a capillary tube coming out of it. The tube can be secured to the evaporator using a special clothespin. For a complete replacement, sometimes it is necessary to remove this clothespin in order to pull the tube out of the channel.
⚠️ Attention: The capillary tube of the thermostat is very thin and sensitive to creases. When removing the old sensor or installing a new one, do not allow kinks, otherwise the device will not work correctly.
When dismantling, it is important to remember or photograph the order in which the wires are connected. Even if the terminals are marked, visual fixation will help avoid assembly errors. In some cases, the wires may be twisted and insulated, which will require careful work with the insulating material.
Diagnostics and signs of malfunction
Understanding where the thermostat is located is necessary not only for replacement, but also for initial diagnosis. If the Biryusa refrigerator hums continuously and does not turn off, or is silent and does not start, the problem often lies in this particular unit. However, the symptoms may be similar to a malfunction of the start relay or the compressor itself.
One of the simple ways to check is to close the contacts. If, with a direct connection of the wires going to the thermostat (bypassing the device itself), the compressor starts and works, then the circuit is working, and the regulator is to blame. This method requires caution and knowledge of basic electrical engineering.
How to check a thermostat with a multimeter?
To check, you need to remove the thermostat and place its sensitive tube in a container with ice water. Then test the contacts with a multimeter. If the device is working properly, in the cold the circuit should close (or open, depending on the type), and when heated, it should change state. Lack of response indicates the need for replacement.
It is also worth paying attention to the condition of the regulator knob. If it scrolls endlessly without characteristic clicks or, on the contrary, is jammed, this is a sure sign of mechanical failure of the thermostat’s internals. In such cases, repair is impossible; a complete replacement of the unit with a similar one is required.
Nuances of selecting analogues for replacement
When searching for spare parts for the Biryusa refrigerator, it is important to take into account not only the external similarity, but also the technical characteristics. Thermostats differ in the length of the capillary tube, operating temperature range and type of contacts. Installing an unsuitable device may result in the refrigerator either undercooling the food or turning the chamber into a freezer.
The most common original thermostats for Biryusa are models of the TAM series (for example, TAM-133) and their imported analogues from Danfoss (series 077). When purchasing an analogue, pay attention to the labeling. The numbers at the end indicate the length of the tube: for example, the marking 1.2 means a length of 1.2 meters, and 2.5 —2.5 meters.
If you cannot find the exact original, it is permissible to install a universal thermostat with similar parameters. The main thing is that the length of the tube is no less than the original one (the excess can be carefully wound into a ring, but not cut!) and that the temperature range meets the requirements of your chamber.
⚠️ Attention: Technical characteristics of refrigeration equipment may vary slightly depending on the year of manufacture and batch. Before ordering spare parts, check the markings on the body of your old thermostat with the data in supplier catalogs.
Frequently asked questions (FAQ)
Is it possible to operate the Biryusa refrigerator without a thermostat?
Theoretically, you can close the contacts and the compressor will work constantly. However, this will lead to continuous operation of the unit, freezing of the evaporator, spoilage of food and rapid failure of the compressor due to overheating. Operation in this mode is only permissible for a short time to check other components.
Why does the refrigerator not turn off after replacing the thermostat?
Perhaps a thermostat was installed with an inappropriate temperature range or a capillary tube that was too long and laid incorrectly. Also, the cause may be a freon leak: if there is not enough cold, the thermostat simply does not receive a signal that the desired temperature has been reached and does not open the circuit.
Where is the thermostat located if there is no handle inside the chamber?
In models without an internal handle, the thermostat (or electronic sensor) is usually hidden behind the top decorative panel in the ceiling of the refrigerator compartment or behind the back wall. In electronic models, the adjustment function is performed by a control board, most often located at the top or bottom of the case.
How to remove the thermostat knob if it cannot be removed?
Do not use brute force. Often the handle is removed by gently rocking it and pulling it towards you. If it is jammed due to ice, you can gently warm it up with a hairdryer. Some models have a locking screw under the handle that must be unscrewed before removal.