The refrigerator gurgles: 7 reasons and what to do about it

You are standing by the refrigerator, pouring a glass of water, and suddenly you hear strange gurgling sounds as if someone is pouring liquid inside or boiling soup. First thought: “Is this normal or is it time to call a specialist?” Don’t rush to panic: in 80% of cases, such sounds do not indicate a breakdown. But sometimes they signal problems that are best solved immediately.

In this article we will analyze all possible causes of gurgling from harmless features of the compressor to serious malfunctions that require repair. You will learn how to distinguish “healthy” sounds from alarming ones, which refrigerator models (Atlant, Samsung No Frost, Indesit) gurgle most often, and what to do if the noise becomes too loud. And also - a list of 5 actions that absolutely cannot be performed if a freon leak is suspected.

For convenience, we have collected diagnosis table by the nature of the sound and checklist for self-check. If after reading you still have questions, at the end of the article there is a detailed FAQ with answers to the most common cases.

1. Why does the refrigerator gurgle: is it normal or is it broken?

Most modern refrigerators gurgle gurgling, gurgling or hissing sounds this is part of their normal operation. Here's why:

• 🔄 Circulation of refrigerant (freon). In the cooling system, the liquid changes from a gaseous state to a liquid state and back, which is accompanied by sounds similar to the pouring of water. This is especially noticeable in models with drip defrosting (for example, Biryusa or Stinol).
• ❄️ Ice thawing. During automatic defrosting, melt water flows down the drainage system - hence the gurgling sound, reminiscent of the operation of an aquarium filter.
• ⚙️ Compressor operationWhen starting or stopping the motor, hydraulic sounds may occur due to changes in pressure in the tubes.

When gurgling should not cause concern:

• 🕒 Sounds appear periodically (for example, once every 1-2 hours) and last no longer than 1-2 minutes.
• 🔊 Volume comparable to light boiling of a kettle at a distance of 3–4 meters.
• 🌡️ Refrigerator maintains the specified temperature, no ice or smudges.

⚠️ Attention: If gurgling is accompanied by a constant hum of the compressor, increase in temperature. in the cells or puddles under the refrigerator it is a sign of a malfunction. Read on to find out what to do.

2. TOP 5 causes of gurgling: from harmless to dangerous

Let's look at all possible sources of sound - from natural to those requiring professional intervention.

The most dangerous situation is leakage. freonIf, along with the gurgling, you notice that:

• 🔥 Compressor does not turn off (works 24/7),
• ❄️ In the freezer ice appears, and in the main compartment it is warmer than usually
• 💧On the floor under the refrigerator a puddle of oily liquid (this could be freon),

— immediately disconnect the device from the network and call a specialist. Freon is toxic: if it leaks, you cannot turn on the refrigerator until repaired.

What happens if you ignore a freon leak?

If the leak lasts for a long time, the refrigerant will completely evaporate, which will lead to overheating of the compressor and its breakdown. Repair in this case will cost 50-70% of the cost of a new refrigerator. In addition, some types of freon (for example, R-22) if leaked in a closed room can cause dizziness or nausea in people with sensitivity to chemical vapors.

3. How to distinguish “healthy” gurgling from a breakdown: 3 tests. data-i="138">Before calling the service center, conduct your own diagnostics. Here are three simple tests:

Before calling the service center, carry out self-diagnosis. Here are three simple tests:

Test 1: Checking the temperature

Take a thermometer (you can use a kitchen thermometer) and measure the temperature in the main chamber and freezer: Normal readings:

• 🥦 Main camera: +2°C ... +5°C,
• ❄️ Freezer: –18°C ... -24°C.

If temperature above normal, and the compressor works without interruption - this is a sign of a freon leak or a thermostat failure.

Test 2: Visual inspection

Move the refrigerator away from the wall and inspect:

• 🔌 Power cord — is there any damage to the insulation.
• 💧 Back wall —is there any rust on the tubes or oily smudges (a sign of leakage).
• 🧊 Drainage hole (at the bottom of the rear wall)—is it clogged debris.

Test 3: Checking the drainage

If the gurgling sounds like “squelching” and water accumulates in the refrigerator, the drainage system is most likely clogged. To check:

1. Unplug the refrigerator. network.
2. Find a drainage hole (usually in the center of the back wall of the main chamber).
3. Carefully clean it with a plastic tube or a syringe with warm water.

Check the temperature in the chambers

Inspect the back wall for smudges

Clean the drainage hole

Listen to the compressor (the norm: cyclical operation, not a constant hum)

Try to restart the refrigerator (turn it off for 10 minutes)

-->

4. The refrigerator gurgles No Frost: system features

Refrigerators with a system No Frost (for example, Samsung RB30J3000WW, LG GA-B489YVQZ) gurgle more often than others. This is due to their design:

• 🌀 Fan evenly distributes cold air, which can create air currents similar to gurgling.
• ❄️ Automatic defrosting occurs every 6-12 hours: the ice melts, water flows down the drain - hence sounds.
• 🔄 Additional tubes For freon circulation, the length of the line is increased, and therefore the noise from the movement of the refrigerant.

If yours No Frost gurgles, but:

• 🌡️ The temperature is stable,
• 🕒 The sounds last no longer than 5 minutes,
• 💧 There are no puddles inside or outside,

— worry nothing about it. For models Samsung i LG with No Frost this is the normal mode.

⚠️ Attention: In refrigerators No Frost you cannot block the ventilation holes food. This leads to icing of the evaporator and increasing gurgling sounds during defrosting.

5. The refrigerator gurgles Atlant, Indesit, Stinol: models with a drip system

In refrigerators with drip defrosting (for example, Atlant MXM 1708-80, Indesit DF 4180 W) the gurgle is associated with the melting of frost on the back wall. The water flows through special grooves into the drainage hole and then evaporates above the compressor. This process may be accompanied by sounds similar to:

• 💧 Drops falling into the water (if the drainage is clean),
• 🌊 Gurgling in the tube (if water has accumulated in the drainage),
• 🔊 Hissing (when moisture evaporates on a hot compressor).

What to do if the sounds become too loud:

1. Clean the drainage hole (see section 3).
2. Check whether the access of warm air to the compressor is blocked (for example, if the refrigerator is close to the wall).
3. If gurgling is accompanied an unpleasant odor, rinse the drainage with a soda solution (1 tablespoon per 1 liter of water).

For models Stinol (for example, STN 167) is typical increased sounds when turned on for the first time after defrosting. This is normal: freon is distributed throughout the system and hydraulic noise may occur. They should disappear after 1–2 hours.

6. When to call a technician: 4 warning signs

If you observe at least one of these symptoms along with gurgling, do not delay repairs:

• 🔥 Compressor works without stopping (normally it should turn off for 10-20 minutes every hour).
• ❄️ A “coat” of ice is growing in the freezer, and in the main chamber it is warmer than +10°C.
• 💦 There is an oily puddle under the refrigerator liquid (there may be a leak of freon or oil from the compressor).
• 🔊 The gurgling has become constant and is accompanied by metallic clanging (there may be a breakdown of the pipes or compressor).

The cost of repairs depends on reasons:

⚠️ Attention: Prices are approximate and may vary depending on the region, refrigerator model and service center policy. For the exact cost, check with the specialist after diagnostics.

If you decide to call a specialist, prepare for the visit:

• 📝 Write down refrigerator model (located on the sticker inside or behind).
• 🎥 Take a video with sound (this will help the technician identify the problem faster).
• 🔌 Free access to the back wall (move the refrigerator away from the wall).

7. How to reduce gurgling: 5 working methods

If diagnostics show that everything is in order with the refrigerator, but the noise is disturbing, try these methods:

• 🔧 Level the refrigerator. An uneven installation increases the vibration of the tubes, which makes the gurgling sound louder. Use a level and adjust the legs.
• 🧲 Check the sealing rubber band. If it is worn out, the compressor runs longer and the sounds become louder. Wipe the rubber band with soapy water and check its density (the sheet of paper should not fall out when the door is closed).
• 📦 Rearrange food. Cans, bottles or pans touching the back wall may resonate and increase the gurgling noise.
• 🌡️ Set the optimal temperatureExcessive cooling (below -20°C in the freezer) increases the load on the system. Recommended settings: main chamber +4°C, freezer –18°C.
• 🔌 Use a voltage stabilizer. Power surges cause the compressor to work unstably, which can increase noise.

For models with No Frost (for example, Bosch KAN92VI20R) will help regular cleaning: dust on the fan increases the noise. Wipe the back wall and grille of the condenser every 3-6 months.

FAQ: Frequently asked questions about gurgling sounds in the refrigerator

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

Modern models use more eco-friendly refrigerants (for example, R-600a instead of R-12), which circulate at a higher speed. In addition, new refrigerators are often installed inverter compressorsworking continuously at low speeds - this can create background gurgling. If the sounds are not accompanied by other problems (ice, puddles, overheating), this is normal.

❓ Is it possible to refill freon yourself if the refrigerator gurgles and does not cool?

❗ No. Freon refilling requires:

• Special equipment (vacuum pump, pressure gauges),
• Knowledge about the types of refrigerants (for example, R-134a incompatible with R-600a),
• Safety precautions (freon is explosive when in contact with an open flame).

An error during refueling can lead to compressor breakdown or poisoning (if there is a gas leak into the room.

❓ The refrigerator gurgles Atlant after defrosting - is this normal?

Yes, in the first 1-2 hours after turning on the refrigerator Atlant (especially models with a drip system, for example MHM 1840-80) may gurgle louder than usual. This is due to:

• Distribution of freon throughout the system after inactivity.
• Thawing of the remaining ice in the drainage system
• Starting the compressor at full power to set the temperature.

If after 2-3 hours the sounds have not decreased, check the drainage hole for blockages.

❓ Why does the refrigerator gurgle Samsung No Frostwhen you open the door?

In models Samsung s No Frost (for example, RB37J5200SA) when the door is opened, it is triggered fan, which distributes cold air. At the same time, it may turn on defrost heater (if the frost on the evaporator has reached a critical thickness). The combination of these processes creates gurgling and hissing sounds. This is normal if:

• Sounds. last no longer than 1–2 minutes after closing the door,
• The temperature in the chambers does not increase,
• There is no smell of burning or plastic (a sign of fan failure).

❓ How often should the refrigerator gurgle in normal mode?

The frequency of gurgling depends on:

• Type of system: No Frost - every 6-12 hours (during defrosting), drip - 1-2 times a day (when frost melts).
• Room temperatures: in hot weather the compressor turns on more often, therefore gurgling is heard more often.
• Chamber loads: if the refrigerator is full of food, the compressor runs longer.

On average, a “healthy” gurgle is heard 2-4 times a day for 1-3 minutes. If the sounds are constant or repeated every 10-15 minutes, this is a reason to check.