Thermostat in the refrigerator Biryusa: how to determine the type, check and replace

Refrigerators Biryusa are popular domestic equipment, known for their reliability and adaptation to Russian operating conditions. However, even in such models, over time, problems with thermoregulation may arise due to a malfunction of the thermostat. This small but critical element is responsible for maintaining the set temperature in the chambers, and its failure leads to freezing of food, lack of cold, or, conversely, continuous operation of the compressor.

Depending on the model and year of manufacture, refrigerators Biryusa are equipped with different types of thermostats - mechanical (capillary) or electronic. For example, in older models of the KShD and BK series, thermostats TAM-112 or TAM-133were often installed, while in modern Biryusa 10, 18, 22 and 26 there may be electronic modules or modified mechanical versions. It is important to understand that even within the same line, thermostats may differ - this depends on the modification and configuration.

In this article we will look at how to accurately determine which thermostat is in your refrigerator Biryusa, what signs can be used to diagnose its malfunction, and whether it is possible to replace it yourself without calling a technician. You will also find a compatibility table of thermostats for popular models and step-by-step instructions for dismantling.

How to find out which thermostat is installed in the Biryusa refrigerator

The first thing you need to do is determine the exact model of the thermostat. This information is indicated on the device itself, but to get to it, you will have to partially disassemble the refrigerator. However, there are ways to narrow the search without disassembling:

• 🔍 Look at the nameplate (metal plate) on the inside of the chamber or on the back wall. The model of the refrigerator is indicated there (for example, Biryusa 18C or KShD-262/100). You can find technical documentation on it.
• 📄 Look at the passport devices - sometimes there is a list of main components, including a thermostat.
• 🔧 Pay attention to the type of control: if the refrigerator has a mechanical temperature controller (the knob turns), then the thermostat is definitely mechanical. If there is an electronic display, most likely the thermostat is electronic or combined.
• 📞 Contact support Biryusa (or an official service center) and name the model - they will suggest an original spare part.

If these methods did not help, you will have to remove the control panelto get to the thermostat. In most models Biryusa it is located inside the refrigerator compartment, behind the plastic cover where the temperature control knob is located. There will be markings on the thermostat body - for example, TAM-112-1M, K59-L1431 or Danfoss 077B6344.

Important: in some models (for example, Biryusa 22 i 26 with the system No Frost) the thermostat can be integrated into the electronic control module. In this case, replacement requires special skills or contacting service.

Types of thermostats in Biryusa refrigerators: compatibility table

Below is a table with the most common refrigerator models Biryusa and compatible ones thermostats. Please note that depending on the year of manufacture and modification, components may differ - check the details according to the markings on the device itself.

If your model is not in the table, pay attention to thermostat markings —it usually begins with the letters THERE (Russian production), K59 (Ranco), WXF (Chinese analogues) or Danfoss (European thermostats). When purchasing a spare part, it is better to choose an original or a certified analogue - cheap, uncertified thermostats can quickly fail.

Signs of a malfunctioning thermostat in the Biryusa refrigerator

The thermostat is, in fact, temperature relaywhich turns the compressor on and off depending on the sensor readings. If it breaks, the refrigerator no longer regulates the cold properly. Here are the main symptoms of the malfunction:

• ❄️ Continuous operation of the compressor without stopping - the thermostat does not turn off the power, since it does not detect the achievement of the set temperature.
• 🔥 No cold in the chamber - the compressor does not turn on because the thermostat does not gives a signal to start.
• ❓ Spontaneous shutdown refrigerator - the thermostat falsely operates, believing that the temperature has reached normal.
• 🌡️ Temperature mismatch specified settings - for example, when installed on +5°C in the chamber -2°C or +10°C.
• 🔊 Clicks without starting the compressor —the relay is heard operating, but the motor does not start.

It is important to distinguish a thermostat breakdown from other faults. For example, freon leak or clogged capillary tube also lead to a lack of cold, but in these cases the compressor usually runs non-stop, and the condenser (grid on the back wall) remains cold. If the thermostat is faulty, the compressor either does not turn on at all or works continuously, and the condenser heats up.

How to distinguish a thermostat failure from a freon leak?

When If there is a freon leak, the compressor works, but does not cool - the sound of the motor is heard, but there is no cold. If the thermostat is faulty, the compressor either does not turn on at all or does not turn off (and the condenser is hot). Also, if there is a leak, an oily puddle may appear under the refrigerator (if the freon leaks out with oil).

In Biryusa refrigerators with electronic control (for example, Biryusa 26), a thermostat malfunction is often accompanied by an error on the display - for example, a code E1 or E2, which indicates a problem with the temperature sensor. In mechanical models, diagnosis is more difficult - you have to rely on indirect signs.

How to check the Biryusa refrigerator thermostat with a multimeter

If you suspect that the thermostat is faulty, you can check it yourself using a multimeter. To do this you will need:

• 🔧 Screwdriver (Phillips or flathead - depending on the model).
• 📊 Multimeter (in resistance testing or "continuity" mode).
• 🧊 Plate with cold water or ice (to simulate low temperature).

Procedure:

1. Disconnect the refrigerator unplug and wait until the compressor cools down (10-15 minutes).
2. Remove the protective cover from the control panel inside the refrigerator compartment - it is usually secured with latches or screws.
3. Disconnect the wires from the thermostat (it is better to photograph their location before doing this).
4. Move the multimeter in resistance test mode (200 Ohm) and connect the probes to the contacts 3 i 4 (usually they are signed).
5. Check the resistance:
   • At room temperature it should be 0 Ohm (contacts closed).
   • Place the thermostat sensor (capillary tube) in ice water - the resistance should become ∞ (open).

If the resistance does not change - the thermostat is faulty and requires replacement.

Disconnect the refrigerator from the mains

Remove the control panel

Disconnect the wires from the thermostat (take a photo!)

Check the resistance between pins 3 and 4

Place the sensor in ice and repeat the measurement

Compare the results with the norm -->

If you have an electronic thermostat (in models Biryusa 22, 26), checking it is more difficult - you will need to diagnose the control board. In this case, it is better to contact the service.

Step-by-step instructions for replacing the thermostat in the Biryusa refrigerator

If diagnostics have confirmed that the thermostat is faulty, you can replace it yourself. The main thing is to choose identical model or a compatible analogue (see table above) and follow safety precautions.

You will need:

• 🔧 Set of screwdrivers (phillips, flat).
• 🔌 New thermostat (check compatibility!).
• 📸 Phone or camera (to record the location of the wires).
• 🧰 Pliers (for carefully removing terminals).

Algorithm replacement:

1. Disconnect the refrigerator from the mains and defrost it (if there is ice in the chamber).
2. Remove the temperature control knob —it is usually attached to a plastic clamp or screw.
3. Remove the protective panel inside the refrigerator compartment (unscrew the screws or unclip the clamps).
4. Disconnect the capillary handset of the thermostat from the evaporator (it is attached to it using a clip or clamp).
5. Take a photo of the wire connection and disconnect them. Usually 4 wires are used:
   • Red/orange - phase from the compressor.
   • Brown/black - zero.
   • Yellow/green - grounding.
   • White/blue - power supply to the lamp (if any).

Unscrew the fastening screws thermostat and remove it.

Install the new thermostat, connect the wires according to the diagram and secure the capillary tube to evaporator.

Assemble the panel in the reverse order and turn on the refrigerator.

In models with No Frost (for example, Biryusa 26), the thermostat can be integrated into the control board. In this case, replacement requires soldering or programming the module - it is better to entrust this to a professional.

Common mistakes when replacing a thermostat and how to avoid them

Even with the apparent simplicity of the procedure, many make mistakes that lead to repeated breakdowns or failure of others nodes Here are the most common of them:

• ⚡ Undisconnected power —working under voltage can lead to electric shock or short circuit. Always remove the plug from the socket!
• 🔌 Incorrect connection of wires —if you confuse phase and zero, The refrigerator will not turn on or the compressor will burn out. Always record the connection diagram in the photo.
• 🧊 Damage to the capillary tube - it is thin and fragile. If it is bent or squeezed, the thermostat will not work correctly.
• 🔧 Using an incompatible thermostat —even if the connectors are suitable, the temperature range may not match. For example, a thermostat from a freezer will not be suitable for a refrigerator.
• 🚫 Ignoring checks after replacement —if you do not make sure that the new thermostat is working, you can miss a defect (for example, a manufacturing defect).

More one typical problem is incorrect installation of the capillary tube. It must fit tightly to the evaporator, otherwise the thermostat will operate with a delay or measure the temperature incorrectly. In some models Biryusa the tube is secured using a metal clip - do not lose it during dismantling!

What to do if after replacing the thermostat the refrigerator does not freezing?

1. Check if the wires are connected correctly (compare with the diagram).

2. Make sure that the capillary tube fits tightly to the evaporator.

3. Check the new thermostat with a multimeter - it may be defective.

4. If the compressor does not start, check the start relay.

5. In models with No Frost, you may need to reset errors through the service menu (hold the "Super Freeze" button for 10 seconds).

Where to buy a thermostat for the Biryusa refrigerator and how much does it cost

A new thermostat can be purchased in several places:

• 🏬 Service centers Biryusa —they are guaranteed to sell original spare parts here, but the price may be higher than that of analogues.
• 🛒 Shops of spare parts for household appliances equipment (for example, "220 Volt", "Techport", "Spare parts for refrigerators").
• 🌍 Online platforms (Yandex Market, Ozon, AliExpress) - here you can find cheap analogues, but the risk of running into a fake is higher.
• 🔧 Refrigerator repair specialists - many of them sell spare parts at a premium, but guarantee performance.

The cost of a thermostat depends on the model and type:

• Mechanical thermostat (TAM-112, TAM-133) - from 800 to 1,500 rubles.
• Electronic thermostat or temperature sensor - from 1,200 to 3,000 rubles.
• Analogs from Ranco or Danfoss — from 1,000 to 2,500 rubles.

When purchasing, pay attention to:

• 📌 Marking —it must completely match the original.
• 🔄 Possibility of return - if the thermostat does not fit, you can exchange it.
• ⭐ Reviews of the seller - especially when purchasing on marketplaces.

FAQ: Frequently asked questions about thermostats in Biryusa refrigerators

Can the thermostat be repaired or just replaced?

Mechanical thermostats (for example, TAM-112) cannot be repaired - they can only be replaced. In electronic thermostats, it is sometimes possible to restore the soldering of the contacts, but this is a temporary solution. In 90% of cases, replacement is required.

Which thermostat is suitable for Biryusa 130?

In the model Biryusa 130 (KShD-250) a thermostat is usually installed TAM-125-1M or its analogue K59-L1431. Check the markings on the old thermostat - in some modifications there may be TAM-133-1M.

What to do if after replacing the thermostat the refrigerator does not turns off?

Possible reasons:

1. Wires are connected incorrectly (contacts are mixed up).
2. The capillary tube does not fit tightly to the evaporator.
3. The new thermostat is defective (check it multimeter).
4. The compressor starting relay is faulty.

Turn off the refrigerator and repeat the test.

How long does it take to replace the thermostat?

On average, the procedure takes from 30 minutes to 1.5 hours, depending on the model:

• For Biryusa 6–18 (simple models) - 30–40 minutes.
• For Biryusa 22–26 (with No Frost) - up to 1.5 hours due to the difficulty of accessing the board.

If you are doing this for the first time, please have time and patience.

Is it possible temporarily operate the refrigerator without a thermostat?

🚨 Strongly not recommended! Without a thermostat, the compressor will operate continuously, which will lead to:

• Overheating and failure of the motor.
• Icing of the evaporator and clogged drainage systems.
• Increased energy consumption and risk of fire.

If the thermostat is broken, it is better to temporarily transfer the food to a cooler bag or to your neighbors until a new part is installed.