Why does the refrigerator gurgle during operation: normal or broken?

You are standing in the kitchen, and suddenly strange sounds are heard from the refrigerator gurgling soundsas if someone is pouring water inside. The first thought is that there is something wrong with the technology. But before you grab the phone and call a technician, let's figure it out: in 90% of cases, gurgling is associated with physical processes in the cooling system. However, there are exceptions when such sounds indicate a malfunction. an absolutely normal phenomenon, associated with physical processes in the cooling system. However, there are exceptions when such sounds indicate a malfunction.

In this article we will analyze in detail all the possible causes of gurgling in the refrigerator - from harmless to those requiring intervention. You will learn how to distinguish operating noise from symptoms of breakdown, which models (Samsung, LG, Atlant, Indesit etc.) are more prone to such sounds, and what to do if gurgling is accompanied by other alarming signals. We will also provide a checklist for self-diagnosis and answers to frequently asked questions.

Spoiler: if your refrigerator gurgles, but freezes normally and does not show errors on the display, there is most likely nothing to worry about. But let's take a closer look.

1. How the cooling system works: why the refrigerator makes sounds

To understand why the refrigerator gurgles, you need to imagine how it works cooling system. Most modern models (regardless of the brand - Bosch, Liebherr, Beko or Haier) are used compressor cycle with refrigerant (freon). Here's what happens inside:

• 🔄 Compressor compresses the refrigerant, heating it to a high temperature.
• ❄️ Hot gas enters in condenser (grid on the back wall), where it cools and turns into liquid.
• 💧 Liquid freon passes through capillary tube (or thermostatic valve), where its pressure drops sharply.
• ❄️ In evaporator (inside the refrigerator or freezer) the refrigerant boils, absorbing heat and cooling the air.

It is at the passage stage freon through capillary tube and evaporator gurgling sounds often occur. This is due to the fact that liquid under pressure passes through narrow channels, and when boiling, gas bubbles form in the evaporator. In refrigerators with the No Frost system, gurgling may be louder due to the additional fan and air circulation.

If your refrigerator gurgles periodically (for example, when the compressor is turned on or after defrosting), this is almost always normal. But there are nuances that we will talk about further.

2. 7 reasons for gurgling in the refrigerator: what is normal and what is not

Now let's move on to specific reasons. We divided them into two groups: natural (not requiring intervention) and potentially dangerous (diagnostics needed).

Let's take a closer look at each reason.

Natural causes (do not require repair)

• ⚙️ Starting the compressor. When the refrigerator is turned on after inactivity (for example, after defrosting or when connecting for the first time), freon begins to circulate through the system. This may be accompanied by short gurgling or hissing (1-3 seconds).
• ❄️ Evaporator operation. In the freezer compartment, the refrigerant boils, absorbing heat. This process is often accompanied by a quiet gurgle, especially in models No Frost (for example, Samsung RB30J3000 or LG GA-B409).
• 💧 Drip defrosting. In refrigerators with a drip system (for example, Atlant MXM-1708 or Indesit DF 4180) condensation flows down the back wall into the pan. This can create sounds similar to gurgling.
• 🌡️ Temperature difference. If you loaded a large amount of warm food into the refrigerator, the compressor begins to work more intensely, which can increase the gurgling sounds.

Potentially dangerous reasons (require checking)

• 🚨 Clogged capillary tube. If gurgling begins louder than usual i is accompanied by poor coolinga blockage may have formed in the tube (for example, due to moisture or oil). This interferes with the normal circulation of freon.
• 🔧 Refrigerant leak. If the tubes are damaged, freon comes out, and its boiling in the evaporator becomes uneven. This can manifest itself as irregular gurgling + heat in the chambers.
• ⚡ Compressor malfunction. If gurgling. accompanied knocking, vibration or constant operation of the motormaybe the compressor is worn out or is overloaded.

3. How to distinguish normal gurgling from a breakdown: checklist

To understand whether you need to worry, go through this checklist. If at least one of the “alarming” items suits your situation, you should contact the service center.

If you answered “yes” to the first 4 points - everything is in order. If there are matches with points 5-7, diagnostics is required.

Also pay attention to model of your refrigeratorFor example:

• B Samsung refrigerators with No Frost (series RB, RF) gurgling may be louder due to active air circulation.
• In models Atlant and Biryusa with a drip system, the sounds of dripping are often heard water.
• B built-in refrigerators (Liebherr, Bosch) gurgling can be reflected from cabinet furniture and seem louder.

4. What to do if the gurgling seems suspicious

If after checking the checklist you still have doubts, follow these steps:

1. Check the temperature in the chambers. If the refrigerator supports the specified mode (usually +4...+5°C in the refrigerator compartment and -18°C in the freezer), most likely gurgling is not due to a breakdown.
2. Inspect the back wall. In models with a drip system (Indesit, Ariston), check whether the drainage hole is clogged. If water does not drain into the pan, this may increase the gurgling sounds.
3. Listen for other sounds. Knocking, grinding or vibration paired with gurgling - a sign of a compressor or fan malfunction.
4. Check the display. Modern refrigerators (Samsung, LG with Smart Diagnosis) may display error codes (for example, E1, FF) that will indicate a specific problem.

If you find at least one of these signs of malfunction:

• 🔴 The refrigerator does not cool, but gurgles.
• 🔴 The gurgling has become constant and loud.
• 🔴 The compressor works without stopping.

— Do not delay calling a technician. Further operation may lead to more serious damage.

What will happen if you ignore the malfunction?

If gurgling is caused by a freon leak or a clogged capillary tube, over time the compressor will wear out, which will lead to to its breakdown. Repair in this case will cost 2-3 times more than timely diagnostics.

5. Features of gurgling in refrigerators of different brands

The design of refrigerators of different brands can affect the nature of the gurgling sounds. Let's consider the most popular brands:

Samsung (RB, RF, RL series)

Refrigerators Samsung with system No Frost often gurgle due to:

• 🌀 Active air circulation (fan operation).
• 💨 Rapid cooling after opening the door (function Power Cool).

In models with Digital Inverter Compressor (for example, Samsung RB30J3000WW) gurgling can be rhythmic, synchronized with the operation of the compressor.

LG (GA, GB, GR series)

In refrigerators LG gurgling sounds are often associated with:

• 🍃 System operation Smart Cooling (several fans).
• 🔄 Function Smart Diagnosisthat can change the operating mode of the compressor.

In models with linear compressor (for example, LG GA-B409SLGL) gurgling usually quieter than in traditional systems.

Atlant and Biryusa

Belarusian refrigerators (Atlant MXM-1708, Biryusa 10) often gurgle due to:

• 💧 Drip defrosting system (water flows down the back wall).
• 🔧 A simpler (and noisier) freon circulation system.

In these models, gurgling may occur louder, but it rarely indicates a breakdown.

Indesit, Ariston, Beko

In refrigerators of these brands, gurgling is often associated with:

• 🔄 Operation single compressor system (in two-chamber models).
• 🌡️ Function Super Freezethat increases the circulation of freon.

6. When gurgling is a cause for concern: alarming symptoms

There are several situations when gurgling sounds unambiguously indicate a malfunction.. Pay attention to the following signs:

⚠️ Attention: If gurgling is accompanied constant operation of the compressor (it does not turn off for more than 12 hours), this may indicate freon leakage or clogging of the capillary tube. In this case, the refrigerator will try to compensate for the lack of cooling, which will lead to overheating of the motor.

• 🔥 The compressor is hot to the touch. Normally, it should be warm, but not scalding. Overheating indicates increased load.
• ❄️ Freezing of the back wall. If ice appears in the refrigerator, this may be a sign No Frost ice has appeared, this may be a sign malfunction of the defrosting system or a freon leak.
• 📉 Temperature in the chambers has risen. Check with a thermometer: if there is more in the refrigerator compartment +8°C, and higher in the freezer -12°C, this is an alarming signal.
• 🚨 Errors have appeared on the display. Codes like E1, F2, FF (depending on the model) often indicate problems with the cooling system.

If you observe at least one of these symptoms, immediately disconnect the refrigerator from the network and call technician. Further operation may lead to:

• 🔧 Compressor breakdown (repair will cost 50-70% of the cost of a new refrigerator).
• ⚡ Fire hazard (if the electric ones overheat) components).
• 💸 Loss of warranty (if the refrigerator is under warranty, and you continued to use it despite the malfunction).

What to do if the refrigerator is under warranty?

If gurgling is accompanied by alarming symptoms, and the refrigerator is under warranty, do not try to repair it yourselfContact an authorized service center. center. Self-repair or opening the seals will lead to loss of warranty.

7. How to reduce gurgling if it bothers you

If the diagnostics showed that gurgling is a normal noise of the refrigerator, but it annoys you, you can try the following. ways:

• 🔧 Level the refrigerator. If it is not level, vibration and gurgling may increase. Use a level and adjust the legs.
• 🧲 Check the fastening of the tubes. Sometimes the gurgling sounds intensify if the freon tubes touch the body (do not. bending!).
• 📦 Rearrange the products. If bottles or cans are close to the back wall, they can resonate and amplify the sound.
• 🔇 Install the refrigerator away from the walls. This will improve air circulation and reduce noise.
• 🌡️ Disable additional functions. In models with No Frost or Super Cooling temporarily disabling these modes can reduce the noise.

If all else fails, consider buying a noise-absorbing mat under the refrigerator or installing equipment in another place (for example, in a pantry).

⚠️ Attention: Do not place the refrigerator close to furniture or walls - this impairs heat transfer and can lead to overheating of the compressor. Optimal distance: 5-10 cm behind and 2-3 cm on the sides.

FAQ: Frequently asked questions about gurgling sounds in the refrigerator

🔍 Why does the new refrigerator gurgle louder than the old one?

Modern refrigerators (especially those with No Frost) have a more complex freon and air circulation system. In addition, new models often use inverter compressorsthat operate with variable power - this can happen. create additional sounds. If the refrigerator is new and gurgles in the first days of operation, give it 2-3 days to “grind in” - often the noise decreases after break-in.

🕒 How long can a refrigerator gurgle normally?

Gurgling sounds are normal. last no more than 10-15 seconds after turning on the compressor or changing the mode. If the gurgling does not stop longer 1-2 minutes or repeats too often (once every 5-10 minutes), this is a reason to be wary: in a working refrigerator, the compressor works 10-20 minutes, then turns off for 30-40 minutes.

🧊 Why does the freezer gurgle and the refrigerator gurgles? no?

In the freezer, the temperature is lower, and the freon boils more actively, which creates gurgling sounds. In addition, the main part evaporatoris often located in the freezer, where the refrigerant boils. In the refrigerator, the sounds may be quieter or absent if it is cooled due to air circulation (as is the case). in systems No Frost).

🔊 Is it possible to eliminate gurgling yourself if it bothers you?

If gurgling is normal operating noise, it cannot be completely eliminated, but it can be reduced (see section 7). If the sound is caused by a malfunction (clogging, freon leak), self-repair is not recommended - special equipment (vacuum pump, pressure gauges) and skills are required. Exception: if you are sure that the problem is in drainage hole (in models with a drip system), it can be cleaned with a cotton swab or thin wire.

💰 How much will it cost repair if gurgling is caused by a breakdown?

The cost of repair depends on the cause:

• 🔧 Cleaning the capillary tube: 3 000 — 6 000 ₽.
• 🧪 Refilling freon: 4 000 — 8 000 ₽ (including leak diagnostics).
• ⚙️ Replacing the compressor: 8 000 — 15 000 ₽ (depending on the model).

If the refrigerator is older than 7-10 years, sometimes it is more profitable to buy a new one than to repair the old one.