The Biryusa refrigerator hums, but does not freeze: 7 reasons and what to do

Has your refrigerator Biryusa suddenly stopped freezing, but the motor is humming as usual? This is a classic symptom that can indicate a simple malfunction or a serious breakdown. In 80% of cases, the problem is solved without calling a specialist - it is enough to correctly diagnose the cause. In this article we will analyze all possible scenarios: from banal icing of the evaporator to failure of the compressor, and also give step-by-step instructions on what to do in each case.

Features of refrigerators Biryusa (especially models 10K, 18K, 22K i series No Frost) - sensitivity to voltage changes and a tendency to clog the capillary tube. If your unit has been in service for more than 5 years, the likelihood of breakdown increases by 30%. But don’t rush to write off the equipment: often it’s not the parts that are to blame, but improper operation. For example, overloading the camera with products or placing hot food may cause a malfunction.

Before disassembling the refrigerator, check the obvious: whether the power is turned off at the outlet, whether the power cord is pinched, whether the temperature regulator is set to the “0” or “Off” position. If everything is in order, but the motor is humming and there is no cooling, read on.

1. Clogged capillary tube: the main culprit of a “humming” refrigerator

The capillary tube is a thin copper channel through which the refrigerant (freon) enters the evaporator. It is especially vulnerable due to its design features: the diameter of the tube is only Biryusa it is especially vulnerable due to its design features: the tube diameter is only 0.6-0.8 mm, and even microscopic particles of oil or moisture can clog it. At the same time, the compressor works for wear, trying to push freon, hence the hum.

Signs of a blockage:

• 🔊 The compressor hums continuously, without pauses (normal should turn off every 15-20 minutes).
• ❄️ The freezer compartment cools slightly, but does not freeze (temperature above -10°C).
• 🌡️ The condenser (grid at the back) is cold or barely warm (should normally warm up).

What to do? If you are not a master do not try to clean the tube yourself this is fraught with depressurization of the system. The best option is to call a specialist with nitrogen purging equipment. The cost of repairs is from 2500 to 4500 rubles (depending on the region). In 90% of cases, after cleaning, the refrigerator restores its functionality.

⚠️ Attention: Some “craftsmen” advise tapping the tube with a hammer or heating it with a blowtorch. This will lead to cracks in the copper circuit and freon leakage -repair will cost 2-3 times more!

2. Freon leak: why the refrigerator “coughs” but does not cool

Freon is the “blood” of the refrigeration system. If it leaks through microcracks in tubes or joints, the compressor begins to idle: it hums, heats up, but there is no cooling. In Biryusa leaks often occur in places where the circuit is soldered (especially in models produced before 2018) or due to corrosion of aluminum parts.

How to recognize a leak:

• 🕳️ On the back wall of the refrigerator oily spots are visible (freon comes out along with the oil).
• 🔥 The compressor overheats (the housing is hot to the touch).
• ⏳ The refrigerator may briefly “come to life” after shutting down, but quickly loses its cold.

Diagnostics of a leak requires special equipment (leak detector). If suspicions are confirmed, the technician will:

1. Search for the leak (most often in the condenser or evaporator).
2. Eliminate the crack (soldering or replacing a section of the tube).
3. Evacuate the system and refill with new freon (usually R134a or R600a).

Average repair cost: 3500–6000 rubles. If there is a leak in the evaporator (inside the chamber), a complete replacement of the unit may be required - this will cost 8000–12000 rubles.

What will happen if the freon leak is not eliminated?

Without freon, the compressor wears out, which leads to its overheating and failure. After 1-2 months of continuous operation without cooling, the motor will burn out - repairs will cost 70-80% of the cost of a new refrigerator. In addition, oil stains from leaks can damage the plastic parts of the housing, which will make restoration economically unfeasible.

3. the hum is the agony of the motor

The compressor is the most “long-lasting” device in the refrigerator, but it does not last forever. Biryusa motors often fail due to:

• 🔌 Power surges (especially important for rural areas).
• 🌡️ Overheating due to blockages or freon leaks.
• ⏳ Natural wear and tear (compressor service life is 10-15 years).

Symptoms of a “dying” compressor:

• 🔊 The hum is uneven, with extraneous sounds (grinding, knocking).
• 🔥 The motor body is scalding hot (more than 80°C).
• ⚡ The refrigerator knocks out the machine in the panel when turned on.
• ⏳ The motor runs for 5-10 minutes and turns off (thermal protection is triggered).

You can check the compressor with a multimeter:

1. Disconnect the refrigerator from the network.
2. Remove the start relay (black box on motor).
3. Measure the resistance between the compressor contacts:
   • Between C (common) and S (start) —should be ~20-30 Ohm.
   • Between C and R (run) — ~10-15 Ohm.
   • Between S and R —the sum of the two previous values (~35-45 Ohm).

If the resistance is equal 0 or ∞ - open circuit or short circuit. The motor must be replaced.

The cost of a new compressor for Biryusy is from 5,000 to 9,000 rubles (depending on the model). Replacement with freon refilling will cost 8,000–12,000 rubles. 10 years, it is more economical to buy a new one.

4. Malfunction of the thermostat or temperature sensor

The thermostat (in mechanical models) or the temperature sensor (in electronic models) is responsible for turning on/off the compressor. If it is broken, the motor may run continuously or, conversely, not turn on at all. data-i="132">most often they fail: Biryusa Most often they fail:

• 🔘 Mechanical thermostat (models Biryusa 3, 6, 8K).
• 📱 Electronic sensor (series No Frost i Biryusa-22).
• 🔌 Start relay (may “stick” and not turn off the compressor).

How to check the thermostat:

1. Disconnect the refrigerator from the network.
2. Remove the protective casing from the thermostat (usually located inside the chamber, next to the lamp).
3. Connect the 2 wires going to the thermostat (if the model is mechanical).
4. Plug in the refrigerator If. the compressor started working - the thermostat is faulty.

The cost of a new thermostat is from 500 to 1500 rubles. Replacing the sensor in electronic models will cost 1,500–2,500 rubles. If the problem is in the starting relay, you can replace it yourself (the price of the part is 300–800 rubles).

5. Evaporator icing: problem No Frost and more

If your refrigerator Biryusa with system No Frost hums, but does not freeze, an iced-up evaporator may be to blame. Normally, a fan blows air across the evaporator, distributing the cold evenly. But if the drainage hole is clogged or the defrost heater is broken, the ice blocks the air circulation - the compressor works, but the cold does not enter the chamber.

Signs of icing:

• 🌬️ The fan is humming, but the air is not blowing (or it blows weakly).
• ❄️ There is a thick layer of ice on the back wall of the freezer.
• 💧 Water under the vegetable drawers (the ice melts, but does not go into the drain).

How to defrost the evaporator:

Unplug the refrigerator

Take out all the food and shelves

Leave the doors open for 12-24 hours (the ice should melt completely)

Clean the drainage hole with a cotton swab or wire

Rinse the internal surfaces with a solution of soda (1 tablespoon per 1 liter of water)

Turn on the refrigerator and check the operation of the fan

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If after defrosting the problem repeats, check:

• 🔌 Defrost heater (resistance should be 200–500 Ohm).
• 🌡️ Defrost sensor (normally 0 Ohm at temperatures below 5°C).
• 🌀 Defrost timer (in mechanical models).

Replacing the defrost heater will cost 1500–2500 rubles, sensor – 1000–1800 rubles. If the timer burns out, you can replace it yourself (price - 500–1200 rubles).

6. Problems with the electronic control unit

In modern models Biryusa (for example, Biryusa-130, 140, 150) the electronic module is responsible for the operation of the compressor. If it burns out or “glitches,” the motor may turn on chaotically: it either hums without stopping, or does not respond to the thermostat. Frequent reasons:

• ⚡ Voltage surge.
• 💧 Moisture getting on the board (for example, when defrosting).
• 🐜 Short circuit due to oxidation of contacts.

Symptoms of unit malfunction:

• 📛 Errors flash on the display (for example, E1, E2, E4).
• 🔄 The compressor turns on at 2-3 seconds and turns off.
• 🔊 The hum is accompanied by clicks of the relay.

It is not recommended to repair the board yourself - this requires soldering work and diagnostic equipment. The cost of repairing the control unit is 2000-4000 rubles. If the module is completely burned out, replacing it will cost 5000-8000. rubles.

⚠️ Attention: If the refrigerator is under warranty, do not open the electronic unit. on your ownthis will void the warranty. Contact the service center Biryusa (contacts are indicated in the warranty card).

7. Other reasons: from a faulty fan to incorrect installation

Sometimes the refrigerator hums, but does not freeze due to little things that few people pay attention to:

• 🌀 The fan is broken (in models No Frost). If it does not spin, the cold is not distributed throughout the chamber. Check whether the blades are blocked by ice or foreign objects. Replacing the fan - 1500–2500 rubles.
• 🔌 Malfunction of the starting capacitor. It helps the compressor to start. hum, but will not start pumping freon. Replacement - 500–1200 rubles.
• 📏 Incorrect installation. If the refrigerator is close to the wall or battery, the compressor overheats and turns off. Move at least 5 cm from the walls. and 30 cm from heat sources.
• 🔋 Low voltage in the networkIf the voltage is lower 190 V, the compressor cannot reach full capacity. power. Use a stabilizer.

Also check:

• 🔒 Door closure tightness. If the seal is worn, warm air enters the chamber and the compressor runs without stopping. 1000–2000 rubles.
• 🌡️ Operating mode. Some models have a “Vacation” function (Vacation), which turns off the freezer. Make sure it is not activated.

FAQ: Frequently asked questions about Biryusa refrigerators

🔍 Why does the Biryusa refrigerator hum, but not? freezes after defrosting?

Most likely, after defrosting the fan did not turn on (in models No Frostor the compressor did not work. Check:

• Is the fan blades blocked by ice (if there is any left).
• Is the heater burned out? defrost (call with a multimeter).
• Have the thermostat settings gone wrong (set the temperature to -18°C and wait 2 hours).

If the problem persists, call a technician - perhaps the contacts were damaged during defrosting or a freon leak occurred.

⚡ The Biryusa refrigerator began to hum loudly and does not freeze - what should you do first?

Sequence of actions:

1. Unplug the refrigerator for 10 minutes, then turn it on again (the overheating protection may work).
2. Check the voltage in the socket (there should be 220–230 V).
3. Inspect the compressor: if it is scalding hot, the malfunction is serious (leakage or motor failure).
4. See if the fan is working (in models No Frost).
5. If nothing helps, call a technician.

💰 How much does it cost to repair a Biryusa refrigerator if it hums but does not freeze?

The cost depends on the reason:

Breakage	Price (rub)
Replacement thermostat	500–1500
Cleaning the capillary tube + refilling with freon	3500–6000
Replacing the compressor	8000–12000
Repairing the electronic unit	2000–4000
Eliminating freon leaks	3500–6000

If the refrigerator is larger 10 years, repairs may be impractical - the cost of spare parts and labor sometimes exceeds 50% of the price of a new unit.

🛠️ Is it possible to fill the Biryusa refrigerator with freon yourself?

Noif you do not have special equipment (vacuum pump, manometric manifold, freon cylinder) and experience Incorrect. refilling will lead to:

• Damage to the compressor due to air entering the system.
• Overcharging or undercharging of freon (the refrigerator will not work correctly).
• Leakage of refrigerant through loose connections.

If you are confident in your abilities, buy refill kit R134a (from 3000 rubles) and follow the instructions. But it is better to entrust this to a professional.

🔧 How to check if it works compressor in the Biryusa refrigerator?

Checking methods:

1. By hearing and touch: if the compressor hums and vibrates, it is working. If it is hot to the touch (more than 80°C), overheating is possible.
2. Multimeter: measure the resistance of the windings (see the section on the compressor).
3. Ammeter: current consumption should be 0.8–1.2 A (if less, the motor is worn out, if more, short circuit).

If the compressor does not start at all, check the start relay and capacitor.