Independent installation of the thermostat on the Biryusa refrigerator: from diagnostics to calibration

The thermostat is the “brain” of the refrigerator Biryusa, responsible for maintaining the set temperature. If your unit stops freezing, works nonstop, or, conversely, turns on too rarely, the problem with a 90% probability lies in this unit. Replacing a thermostat is a task of average complexity, which even a beginner can handle with a minimum set of tools and precise instructions.

In this article we will look at step-by-step algorithm for installing the thermostat for all popular models Biryusa (from Biryusa-3 to Biryusa-220K), we will indicate typical pitfalls and teach you how to calibrate a new sensor. We will pay special attention electrical safety —errors here can lead not only to equipment breakdown, but also to a short circuit.

⚠️ Warning: If your refrigerator Biryusa was produced before 2010, the thermostat connection diagrams may differ. In such cases, check the device passport or take photographs of the original wire connection before removal of the old sensor.

1. Diagnosing a malfunction: how to understand that the thermostat is to blame

Before you run to the store for a new thermostat, make sure that it is the problem. Symptoms of a broken thermostat often coincide with signs of other problems (for example, a freon leak or a compressor failure). Here key signalsthat the temperature sensor has failed:

• 🔴 Refrigerator does not turn off (the compressor runs continuously 24/7).
• ❄️ In the freezer compartment ice has formed, and in the main compartment - the temperature is too low (below +2°C).
• 🔥 Refrigerator does not turn on at all (no characteristic click relay when turning the thermostat knob).
• 🌡️ The temperature in the chambers does not correspond regulator position (for example, at “2” - too cold, at “5” - warm).

For accurate diagnostics, use a multimeter:

1. Disconnect the refrigerator from the mains and remove the thermostat protective cover (usually it is located inside the chamber, behind the plastic panel).
2. Disconnect the wires from the sensor terminals (memorize or photograph them location!).
3. Switch the multimeter to resistance testing mode (200 Ohm) and connect the probes to the contacts 3 and 4 (on most models Biryusa these are terminals for measuring the resistance of the thermistor).
4. Turn the thermostat knob from the minimum to the maximum position. A working sensor will show a smooth change in resistance from 2-4 kOhm (at +5°C) to 0.5-1 kOhm (at -20°C).

If the resistance is not varies or equal 0/∞ —the thermostat is faulty. Also check the circuit for an open circuit: in the “Off” position. between the contacts 3 and 4 there should be infinite resistance.

2. Choice of thermostat: original vs analogs

For refrigerators Biryusa thermostats of the series K-59 (for single-chamber models) and TAM-133 or TAM-145 (for two-chamber models) are used. The original sensors are produced at Kursk Electrical Equipment Plant (KEAZ) and are labeled as "Biryusa" or "Atlant" (they are interchangeable!).

If original The thermostat could not be found, analogues will do:

When purchasing an analogue, pay attention on:

• 📏 Length of the capillary tube (must match the original ±2 cm).
• 🔌 Terminal location (on some Chinese thermostats the numbering of contacts may differ!).
• 🌡️ Temperature range (for freezers you need a sensor that supports up to -24°C).

⚠️ Attention: On the market there are often counterfeit thermostats Danfoss and Ranco with inappropriate characteristics. Buy only from authorized dealers or trusted stores (for example, "220 Volt", "Platan").

3. Tools and preparation for replacement

To install the thermostat on Turk you will need:

Phillips screwdriver (PH2)

Flat screwdriver (3 mm)

Pliers with insulated handles

Multimeter (for checking)

Insulating tape or heat-shrink tube

Hair dryer (for drying contacts)

Camera (for fixing the circuit connections)-->

Also prepare your workplace:

1. Unplug the refrigerator and defrost it (if ice interferes with access to the thermostat).
2. Pull out the refrigerator 50-60 cm from the wall for easy access to the back panel.
3. Cover the floor with cardboard or a rag - small parts (springs, washers) may fall out during dismantling.

Important! If you are replacing the thermostat in a refrigerator with a system No Frost (for example, Biryusa-130NF), you will also need:

• 🔧 8 mm socket wrench (for removing the evaporator panel).
• 🧴 Silicone grease (for processing the seal after assembly).

What to do if the thermostat is “stuck” to the housing?

If the plastic thermostat housing is stuck to the metal panel (a common problem with old ones Turkish), do not try to tear it off by force! data-i="183">or WD-40 or alcohol solution and wait 10-15 minutes. Then carefully pry out the case with a flat screwdriver, placing a piece of plastic under it so as not to scratch the coating.

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

The algorithm for installing a new thermostat depends on the refrigerator model. Below is a universal instruction, suitable for 80% of devices Biryusa (exceptions are models with electronic control, for example, Biryusa-220K).

Step 1: Dismantling the old thermostat

1. Remove the temperature control knob (it is attached to a latch or screw under the decorative plug).

2. Unscrew the screws holding the plastic panel inside the chamber (usually 2-3 screws for a Phillips screwdriver).

3. remove the panel - behind it you will see a thermostat attached to a metal plate. Do not pull on the capillary tube! - it is fragile and can come off.

4. Disconnect the wires from the thermostat terminals. Be sure to photograph or sketch the connection diagram - on new thermostats the numbering of contacts may be different!

Step 2: Installing a new sensor

1. Move the capillary tube of the new thermostat to the same position as the old one. It should fit tightly to the evaporator (metal plate on it. back wall of the chamber).

2. Secure the thermostat to the plate using screws or latches (depending on the model).

3. Connect the wires according to the diagram. Typical pinout for Biryusa Biryusa:

Terminal 1: Yellow wire (power)
Terminal 2: Red wire (compressor)
Terminal 3: Black wire (ground)
Terminal 4: White wire (light bulbs)

4. Replace the plastic one. panel and adjustment knob.

Step 3: Checking operation

1. Connect the refrigerator to the network and set the thermostat knob to the middle position (usually “3”).

2. After 10-15 minutes, check:

• 🔊 The compressor should turn on (hear a slight click and hum).
• ❄️ Frost should appear on the back wall of the chamber (a sign of the evaporator working).
• 💡 The lighting lamp should turn off turn off when the door is closed.

⚠️ Attention: If after replacing the thermostat the refrigerator Biryusa turns on, but after 1-2 minutes it turns off with a loud click - there is a problem in compressor start relay, and not in the temperature sensor.

5. temperature

The new thermostat may have factory errors in measurements. In order for the refrigerator to maintain the temperature accurately (for example, +4°C in the main chamber and -18°C in the freezer), calibrate:

1. Place thermometer (preferably an electronic one with an external sensor) in the center of the main one. camera.
2. Set the thermostat knob to “3” and leave the refrigerator to work for 6-8 hours.
3. Compare the thermometer readings with the expected values:
   • 🥛 Main chamber: +3…+5°C.
   • ❄️ Freezer compartment: -16...-20°C.

If the temperature is higher than normal, turn the regulator one notch clockwise. If lower - against.

Repeat the measurement after 4-5 hours. Typically, 2-3 iterations are required for fine tuning.

🔹 For models with. electronic control (for example, Biryusa-220K) calibration is performed through the service menu. To enter it:

1. Disconnect the refrigerator from the network for 30 seconds.
2. Press and hold the button «Super Freeze» (or "Eco"), then turn on power.
3. After 5 seconds, a code will appear on the display «F0» - this is the service mode.
4. Use the «+»/«–» buttons to find the parameter «dF» (temperature delta) and adjust the value within -5…+5.

6. Typical mistakes and how to avoid them

Even experienced professionals sometimes make mistakes when replacing the thermostat. Here TOP-5 mistakes and their consequences:

Error	Consequences	How to fix
Incorrect connection of wires to the terminals	Short circuit, compressor combustion	Check the connection diagram using the photo taken before dismantling
Kink in the capillary tube	Incorrect temperature readings, frequent compressor starts	Straighten the tube, give it its original shape
Poor attachment of the thermostat to the evaporator	Inaccurate temperature measurement, freezing of the rear wall	Secure the sensor using clamps or thermal paste
Using a thermostat with the wrong range	The refrigerator does not freeze or freezes food	Replace the sensor with a model with the correct temperature range
Forgot to dry the contacts after replacement	Oxidation of the terminals, poor contact	Dry with a hairdryer (temperature up to 60°C) and treat the contacts with alcohol

🔧 Advice from the expert: If after replacing the thermostat the refrigerator Biryusa became noisier than usual, check:

• 🔨 Compressor mounting (the bolts may have loosened when moving the refrigerator).
• 🧲 Location capillary tube - it should not touch the fan (in models with No Frost).

7. When is it better to call a specialist: 3 cases

Replacing the thermostat is a task that most users can handle. However, in some situations it is better to trust a professional:

1. The refrigerator is under warranty. Independent repair will void the warranty. Biryusa.
2. The thermostat is soldered into the board. controls. This is relevant for new models with an electronic unit (for example, Biryusa-220K). Replacement requires skills in working with a soldering iron.
3. After replacing the thermostat, the compressor does not turn on. The reason may lie in a malfunction of the start relay, compressor or freon leak - this requires professional diagnostics.

Cost of replacing the thermostat at the service center:

• 💰 Replacement of the sensor: 1500–2500 rubles (excluding the cost of the part).
• 💰 Diagnostics + replacement: 2500–3500 rubles.

⚠️ Attention: If you live in a region with high humidity (for example, Krasnodar Territory, Primorye), after replacing the thermostat, treat the contacts silicone grease - this will prevent corrosion and extend the life of the sensor.

8. Prevention: how to extend the life of the thermostat

The average service life of a thermostat in refrigerators Biryusa is 7-10 years. longer:

• 🧊 Defrost. Regularly (every 3-6 months) defrost the refrigerator, even if it has a system No Frost. Ice on the evaporator deforms the capillary tube of the thermostat.
• 🔌 Stable power supply. Connect the refrigerator via surge protector —voltage surges reduce the life of the sensor.
• 🚪 Closing the door tightly. Worn out the seal forces the compressor to work in increased mode, which increases the load on the thermostat.
• 🧹 Cleanliness. Dust on the condenser (rear grill) increases the temperature in the chamber, causing the thermostat to operate more often.

🔹 For models with electronic control (Biryusa-220K, Biryusa-130NF) once a year, reset the settings:

1. Disconnect the refrigerator from the network for 1 minute.
2. Press and hold the buttons «Super Cool» + "Eco" for 10 seconds.
3. Wait for the sound signal - this is confirmation of the reset.

FAQ: Frequently asked questions about thermostats Biryusa

❓ Is it possible to replace the thermostat with Biryusa-18 without defrosting?

Technically yes, but not recommended. Ice on the evaporator will interfere with accurate placement of the capillary tube, which will lead to incorrect temperature readings. If there is no time to defrost, at least remove the ice around the thermostat using a plastic scraper.

❓ Why does the new thermostat click, but the compressor does not turn on?

There are two reasons:

1. The starting relay is faulty (needs replacement).
2. The compressor is jammed - check it with a multimeter (the resistance between the windings should be 20-40 Ohm).

Also make sure that there is supply to the thermostat terminals 220V (check with a tester).

❓ Which thermostat is suitable for Biryusa-3 1998 release?

For this model you need the original K-59-L2511 or its analogue Danfoss 077B6-0150. Pay attention to the length of the capillary tube - it should be 1.2 meters. A problem that often occurs in old refrigerators. s oxidized terminals, so before installing a new thermostat, clean the contacts with sandpaper.

❓ Is it possible to use a thermostat from Atlanta in a refrigerator Biryusa?

Yes, thermostats Atlant i Biryusa are completely interchangeable, since both brands are produced on Kursk Electrical Equipment Plant. The exception is models with electronic control (for example, Atlant XM-6021), which use specialized sensors.

❓ How much does a thermostat cost at Biryusa-22?

Prices for 2026:

• Original TAM-133-1M: 1200–1800 rubles.
• Analog Orion T-133: 800–1200 rubles.
• Set with a capillary tube: 1500–2000 rubles.

Buy only in trusted stores - there are many fakes on the market with inappropriate temperature characteristics.