Connecting the thermostat in the Biryusa refrigerator: instructions with photos and diagrams

The thermostat (or thermostat) is a key element of the refrigerator Biryusaresponsible for maintaining the set temperature. If your refrigerator stops freezing, runs nonstop, or, conversely, turns on too rarely, the problem may lie in this device. Replacing a thermostat is one of the most common repair operations, which, if desired, can be done independently, without resorting to the services of a technician.

In this article we will look in detail at how to connect a thermostat in a refrigerator Biryusa different models, including popular series KShD-240, Biryusa-130 i Biryusa-18S. You will learn what tools you will need, how to properly remove the old thermostat, where the connection diagram is located and how to avoid common mistakes. We will also give recommendations on choosing a new thermostat and checking its performance after installation.

If you have never repaired refrigerators, do not worry: the process of connecting a thermostat does not require special skills, but it will require accuracy and attention to detail. The main thing is to follow the instructions and take your time. And for those who already have experience, we have prepared useful nuances that will help save time.

1. Signs of a malfunctioning thermostat in the Biryusa refrigerator

Before proceeding with replacement, it is important to make sure that the problem is really in the thermostat. Here are the main symptoms of its breakdown:

• 🔴 Refrigerator does not turn on at all (there is no characteristic relay click when turning the thermostat knob).
• ❄️ The compressor works without stopping, which leads to icing of the back wall or freezing of products.
• 🌡️ Temperature in the chambers does not correspond to the installed one (for example, when the handle is positioned at "3" in the freezer +10°C).
• 🔄 The refrigerator turns off spontaneously and does not turn back on until you pull the thermostat knob.
• 💥 Audible relay clicks, but the compressor does not start (may indicate an open circuit in the thermostat).

If you observe at least one of these signs, the probability of a thermostat malfunction is about 70%. However, before replacing, it is worth checking other possible reasons:

• 🔌 Power: make sure that the plug is tightly inserted into the socket, there are no power outages.
• 🧊 Door seal: if it is damaged, the refrigerator may not gain temperature.
• ⚙️ Compressor start relay: its malfunction also leads to a lack of starting.

⚠️ Attention: In refrigerators Biryusa with electronic control (for example, Biryusa-22K), the thermostat can be integrated into the board. In this case, replacement requires soldering work and it is better to entrust it to a professional.

2. Tools and materials for replacing the thermostat

To independently connect the thermostat in the refrigerator Turk you will need:

Also prepare:

• 📸 Camera or smartphone —to photograph the connection diagram to dismantling.
• 🧴 Alcohol or solvent —to clean contacts from oxidation.
• 🔧 New thermostat —must be compatible with the model of your refrigerator (more on this below).

If you are not sure of the thermostat model, you can determine it by the markings on the old device. In refrigerators Biryusa most often there are thermostats K-59 (for single-chamber), TAM-133 or TAM-125 (for two-chamber). For an accurate selection, use the compatibility table:

Thermostat compatibility table for Biryusa

Biryusa-18S, Biryusa-22K → TAM-133-1M
Biryusa KShD-240/260 → K-59-L2541
Biryusa-130, Biryusa-150 → TAM-125-1M-15
Biryusa-6C (small models) → TAM-112-1M-5

3. Where is the thermostat located in the Biryusa refrigerator?

The location of the thermostat depends on the model of the refrigerator. In most cases, it can be found in the following places:

• 🔘 Inside the refrigerator compartment —under the plastic cover next to the temperature control knob (typical for models Biryusa KShD, Biryusa-18S).
• 🔘 Outside on the back wall —in a metal box next to the compressor (found in old models like Biryusa-3).
• 🔘 In the freezer —if the refrigerator is two-chamber with one compressor (for example, Biryusa-22K).

To get to the thermostat in the refrigerator:

1. Unplug the refrigerator.
2. Remove the temperature control knob (pull it towards you or pry it with a flat screwdriver).
3. Unscrew the screws securing the plastic panel (usually 2-4 pieces).
4. Carefully remove the panel - under it you will see a thermostat with connected wires.

In some models (for example, Biryusa-130) the thermostat can be hidden under the top cover of the refrigerator compartment. In this case, you will need to remove the top shelf.

4. Thermostat connection diagram: how not to mix up the wires

The most important step is the correct connection of the wires to the new thermostat. Biryusa refrigerators use standard color marking of wires, but it may differ depending on the year of manufacture and modification. A typical connection diagram looks like this:

Before disconnecting the wires be sure to take a photo their location or draw a diagram. If the wires are not color coded, mark them with electrical tape. Typical errors when connecting:

• ❌ Mixed up phase and zero —leads to a short circuit.
• ❌ Wire from the lamp connected to the compressor - the refrigerator will not turn on.
• ❌ Unconnected grounding is dangerous for safety.

In refrigerators Biryusa with a system No Frost (for example, Biryusa-26SF), the circuit may include additional wires for the fan and defrost heating element. In this case, it is better to check the official documentation.

⚠️ Attention: If your refrigerator has electronic control unit (display, buttons), the thermostat can be connected via a board. In this case, independent replacement is fraught with failure of the electronics.

5. Step-by-step instructions for replacing the thermostat

Now let's move on to practice. Follow this algorithm to correctly connect the new thermostat:

1. Removing the old thermostat:
   • Unplug the refrigerator from the outlet and wait until it defrosts (if there was icing).
   • Remove the temperature control knob and plastic panel (as described above).
   • Disconnect power tube (capillary) from the evaporator. It is attached with a clamp or clamp - carefully remove it with pliers.
   • Unscrew the nut or screws that secure the thermostat to the body.
   • Disconnect all wires, having previously marked them.
2. Installing a new thermostat:
   • Place the new thermostat in place of the old one and secure it.
   • Connect the wires according to the diagram (or your photo). Start with grounding, then neutral, phase and compressor.
   • Make sure that all contacts are tightly tightened - weak contact can lead to heating and melting of the terminals.
   • Connect the power tube to the evaporator and secure it with a clamp.

Checking functionality:

• Plug in the refrigerator.
• Turn the thermostat knob to the "1" or "Min" position - the relay should click.
• After 5-10 minutes, check whether the compressor starts (it should vibrate slightly and heat up).
• If the refrigerator does not turn on, turn it off and check that the wires are connected correctly.

If after replacement the refrigerator works, but does not freeze, possible reasons:

• 🔹 Incorrect connected wire to the compressor.
• 🔹 Damaged power tube (capillary) - it must be intact and not pinched.
• 🔹 New thermostat faulty (defective or incompatible model).

6. How to check the thermostat for functionality?

If you are not sure that the old thermostat is faulty, you can check it with a multimeter. To do this:

1. Remove the thermostat from the refrigerator, but do not disconnect the power tube.
2. Place the thermostat in a container with cold water (temperature about +5°C).
3. Connect the multimeter probes to terminals "3" and "4" (phase and compressor) in resistance test mode (ohmmeter).
4. If the thermostat is working properly, when cooling it should close the circuit (resistance tends to 0).
5. Take the thermostat out of the water and heat it (for example, in your hand). A working device will open the circuit (the resistance will become infinite).

If the circuit does not close or does not open, the thermostat is faulty and requires replacement. Also check the integrity of the power tube - it should not have cracks or kinks.

⚠️ Attention: In thermostats with three terminals (for example, TAM-112) check the resistance between terminals "3" and "4". Terminal "6" is responsible for the lamp and is not involved in the test.

For more accurate diagnostics, you can use direct connection of the compressor (in thermostat bypass). To do this:

1. Disconnect the wires going to the compressor from the thermostat.
2. Connect them directly to the power wires (phase and neutral), observing the polarity.
3. If the compressor starts, The problem is definitely in the thermostat.

7. Typical mistakes when connecting a thermostat

Even experienced craftsmen sometimes make mistakes that lead to repeated breakdowns. Here are the most common of them:

• 🔌 Wrong polarity - if you confuse phase and zero, the thermostat may burn out the first time you turn it on.
• 🔗 Weak contact - poorly tightened terminals lead to heating and melting of the wires.
• 🧊 Pressed power tube —if it is pressed with a clamp, the thermostat will not respond to temperature.
• 🔄 Incompatible thermostat model —for example, installation K-59 instead TAM-133 will lead to incorrect operation.
• 💡 Forgot to connect the lamp —the refrigerator will work, but the light inside will not turn on.

To avoid these errors:

• ✅ Use only original spare parts or analogues recommended by the manufacturer.
• ✅ Check all connections for reliability before turning on.
• ✅ Do not use excessive force when tightening the nuts - this may damage the terminals.

If after replacing the thermostat the refrigerator Biryusa is unstable (for example, it turns on too often), perhaps the problem is wrong setting. Try to calibrate the thermostat:

1. Set the knob to the middle position (usually "3").
2. Place the thermometer in the refrigerator compartment.
3. After 12 hours, check the temperature - it should be in the range of +2...+5°C.
4. If the temperature is higher or lower, adjust the position of the knob.

8. Where to buy a thermostat for a Biryusa refrigerator?

A new thermostat can be purchased in several ways:

• 🛒 Official service centers Biryusa - guaranteed original spare parts, but the price may be higher than the market.
• 🌍 Online stores (for example, "Spare parts for refrigerators", "220 Volt", AliExpress) - a wide range, but the risk of running into a fake.
• 🏬 Electronics stores (for example, "Chip and Dip") - sometimes there are universal thermostats suitable for Biryusa.
• 🔄 Used markets -cheaper, but there is no guarantee of performance.

Average cost of a thermostat for Biryusa (for 2026):

• K-59 —from 800 to 1,500 rubles.
• TAM-133 —from 1,200 to 2,000 rubles.
• TAM-125 —from 900 to 1,600 rubles.

When purchasing, pay attention to:

• 🔹 Refrigerator model —the thermostat must be compatible.
• 🔹 The length of the power tube —it must match the original.
• 🔹 Number of terminals —in some models there are 3, in others - 4 or 6.

⚠️ Attention: Prices and availability of spare parts may vary depending on the region. Before purchasing, check with the seller whether the thermostat is suitable for your model Biryusa.

FAQ: Frequently asked questions about connecting the thermostat

Is it possible to replace the thermostat in the refrigerator Biryusa without turning off the compressor?

No, it is necessary to disconnect the refrigerator from the network. The compressor operates at high voltage and touching live wires can be fatal. In addition, when replacing a thermostat, it is necessary to check the resistance of the circuit, which cannot be done with the device turned on.

Which thermostat is suitable for the Biryusa-18C refrigerator?

For the model Biryusa-18C original thermostat — TAM-133-1M. Analogs are also suitable: Danfoss 077B6 (with adaptation) or Ranko K-59-L2541 (universal). The main thing is that the length of the power tube matches (usually 1.2–1.5 m).

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

There may be several reasons:

1. Wires are connected incorrectly (check the diagram).
2. The new thermostat is faulty (check with a multimeter).
3. The compressor start relay has burned out (the relay needs to be replaced).
4. Breakage in the power tube (inspect it for damage).

Start by checking contacts -they should be tightly tightened and not oxidized.

Is it possible to use a thermostat from another refrigerator (for example, Atlant) in Biryusa?

Theoretically, it is possible, but only if:

• 🔹 The number of terminals and their purpose matches.
• 🔹 The temperature adjustment range is suitable for your model.
• 🔹 The length of the power tube is sufficient to connect to the evaporator.

However, it is better to use an original thermostat or a certified analogue, since incompatibility can lead to incorrect operation of the refrigerator.

How long does the replacement take? thermostat?

On average, the process takes from 30 minutes to 2 hours, depending on:

• 🔹 Experience of the master (a beginner will need more time).
• 🔹 Models refrigerator (in some Biryusa the thermostat is hidden deep).
• 🔹 Availability of tools (if everything is at hand, the work goes faster).

Take your time - it’s better to spend more time on careful installation than later redo.