The No Frost 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 something strange gurgling from inside. The sound appears and disappears - as if liquid is overflowing somewhere. If your refrigerator with the system No Frost starts to “talk” in this way, do not rush to panic: in 80% of cases this is not a breakdown, but a feature of the equipment’s operation. But there are exceptions when gurgling signals a malfunction.

In this article we will analyze all possible reasons gurgling sounds - from harmless (refrigerant circulation) to critical (freon leakage). You will learn how to distinguish normal from breakdown, what you can do yourself, and when you should call a professional. We also collected unique data on refrigerator models Samsung, LG, Indesit and Atlantwhere gurgling occurs most often.

1. How the No Frost system works and why it can gurgle

To understand why the refrigerator makes strange sounds, you need to understand its structure. Unlike drip models, where moisture flows down the back wall, the system No Frost (or Frost Free) uses forced air circulation. The fan evenly distributes the cold, and the frost that still forms on the evaporator automatically thaws.

Gurgling is most often associated with by the movement of refrigerant (freon) through the circuit tubes. When the compressor turns on or off, the pressure in the system changes and fluid begins to flow - this is what creates sounds similar to water pouring. In new models (Samsung RB30A3200SA, LG GA-B409SLGL), manufacturers even indicate in the instructions that periodic gurgling is the norm.

• 🔄 Cycle compressor operation: gurgling is more often heard in the first 5-10 minutes after starting the engine, when freon begins to actively circulate.
• ❄️ Evaporator defrosting: in models with Total No Frost (for example, Bosch KAN92VI30R) the heater is turned on once every 8-12 hours, which melts the frost. At this moment, not only gurgling can be heard, but also a slight hissing.
• 💧 Condensation in the drainage system: water flowing into the pan sometimes creates sounds similar to gurgling (especially if the drainage tube is clogged).

If sounds appear regularly, but not accompanied by other symptoms (poor cooling, puddles under the refrigerator, constant operation of the compressor), most likely everything is in order with the equipment. But there are also alarming signs, which we will talk about further.

2. When gurgling is normal and when it is not: checking symptoms

To distinguish “healthy” sounds from signs of breakdown, pay attention to frequency, volume and related problems. We have collected key signs in the table:

If your refrigerator falls into the “Potential breakdown” column, proceed with diagnostics. Start with the simplest:

Check that the refrigerator is not touching walls or furniture (vibration can amplify sounds)

Make sure that the compressor works in cycles (on/off) and not constantly

See if there is water under the refrigerator or inside (at the bottom of the chambers)

Check the temperature in the refrigerator and freezer compartments-->

⚠️ Attention: If gurgling is accompanied strong chemical odorimmediately unplug the refrigerator! This may indicate a leak of freon, a substance hazardous to health. Ventilate the room and call a technician.

3. Top 5 reasons for gurgling in the No Frost refrigerator

Now let's figure out what exactly can cause gurgling sounds. We analyzed data from service centers and identified five most common reasons:

1. Circulation of refrigerant (freon)

The most harmless reason. Freon moves through the tubes of the circuit, changing its state of aggregation from liquid to gaseous and back. At the same time, it can make sounds similar to pouring water. This is especially noticeable in models with inverter compressor (Samsung RB37A5200SA, LG GB-B399SLQZ, where the motor operates almost silently, and gurgling is heard more clearly.

2. Clogged drainage system

In refrigerators No Frost condensation flows through a special tube into the pan, where it evaporates. If the tube becomes clogged with dust or mold, water accumulates and creates gurgling sounds as it drains. Most often this happens in models with a bottom freezer (Indesit DF 5200 W, Atlant XM 4025-000).

How to check the drainage tube?

Unplug the refrigerator and carefully remove the back panel at the bottom (if it is removable). Under the drainage hole there should be a tube leading to Shine a flashlight on the pan - if water or dirt is visible, the system is clogged. You can clean it with a syringe with warm water or a special brush (available in hardware stores).

3. Compressor malfunction

If gurgling is accompanied loud rumbling, vibration or overheating of the compressor, there is a problem. may be in the motor. In older models (Stinol 104, Biryusa 130) this is often due to wear of the piston group. In new refrigerators (Liebherr CNef 4315) - with a malfunction of the start relay.

4. Freon leak

A dangerous breakdown that requires urgent repair. When a freon leaks, gurgling begins permanent, and the refrigerator stops cooling. Most often, a leak occurs in places where pipes are soldered (for example, after careless transportation in models). data-i="133">the leak may be hidden - freon comes out slowly, and at first you will only hear gurgling, and then you will notice that the food spoils faster. No Frost The leak may be hidden - the freon comes out slowly, and at first you will only hear gurgling, and then you will notice that the food is spoiling faster.

5. Problems with the evaporator

In refrigerators Total No Frost The evaporator is located behind the back wall. If it is covered with ice (due to a malfunction of the heater or defrost sensor), when the defrosting system is turned on, the ice melts unevenly and water flows out with gurgling sounds. This problem is typical for models Beko GNE 114620 X i Gorenje NRK 6191 MC.

4. step-by-step instructions

If you have ruled out breakdowns and want to get rid of annoying sounds, try the following steps. Start with the simplest methods:

Step 1: Check the installation of the refrigerator

Sometimes gurgling intensifies due to incorrect installation. that:

• 📏 The refrigerator is level (check with a level or leveling app on your phone).
• 🔌 There is no contact with furniture or walls (vibration from the compressor can be transmitted and amplify sounds).
• 🧲 The door closes tightly (check the seal - if it is dirty, the refrigerator is working in high mode).

Step 2: Clean the drainage system

If the cause is a blockage, proceed as follows:

1. Unplug the refrigerator.
2. Find the drainage hole (usually at the bottom of the back wall of the refrigerator camera).
3. Use a cotton swab or brush to carefully clean the hole.
4. Pour 50–100 ml of warm water with the addition of soda (1 teaspoon per glass) into the hole for disinfection.

Step 3: Defrost the refrigerator

Even in models No Frost sometimes ice forms, which creates gurgling sounds when defrosting. Complete defrosting will help eliminate the problem:

1. Unplug the refrigerator.
2. Remove all food and shelves.
3. Leave the doors open for 10-12 hours (you can speed up the process by placing a pan of hot water inside).
4. After defrosting, wipe the walls with a dry cloth and turn on the refrigerator.

⚠️ Attention: Do not use a hair dryer or other heating devices to speed up defrosting! A sudden change in temperature can damage plastic parts and seals.

Step 4: Check the temperature conditions

Sometimes the gurgling noise increases if the refrigerator is operating in maximum cooling mode. Try lowering the temperature:

• In the refrigerator compartment, the optimal temperature is: +4…+5°C.
• In the freezer: -18°C (not lower, if not necessary).

In models with electronic control (Samsung RL38T6117SA, LG GA-B459SQDL) the temperature can be adjusted through the menu on the display. In mechanical refrigerators (Atlant MXM 1705-80) use the regulator on the back wall.

5. When to call a professional: signs of serious damage

If independent measures do not help, and the gurgling is accompanied by other symptoms, professional repairs will most likely be required. Pay attention to the following signs:

• ❌ The refrigerator does not cool, but the compressor is working (possible freon leak or compressor malfunction).
• ❌ Constant gurgling without pauses (may indicate a blockage in the capillary tube).
• ❌ Water under the refrigerator or inside the chambers (problems with drainage or evaporator).
• ❌ Loud rumbling compressor with vibration (motor wear or faulty start relay).
• ❌ Ice in the freezer despite No Frost (defrosting system does not work).

The cost of repair depends on the breakdown:

⚠️ Attention: Prices and terms may vary depending on the region, refrigerator model and service center policy. Check the details with the technician before starting work.

If your refrigerator is under warranty, do not try to repair it yourself! Doing so may void your warranty. Contact the brand's authorized service center.

6. Refrigerator models where gurgling occurs most often

Analysis of user complaints and data from service centers shows that gurgling sounds most often occur in the following models:

• 🔹 Samsung RB30A3200SA, Samsung RL38T6117SA — gurgling is associated with the operation of the inverter compressor and the circulation of freon in thin capillary tubes.
• 🔹 LG GA-B409SLGL, LG GB-B399SLQZ — sounds aggravated due to the characteristics of the system Total No Frost and the location of the evaporator.
• 🔹 Indesit DF 5200 W, Indesit ITF 118 W - frequent blockages of the drainage system due to the design of the pan.
• 🔹 Atlant XM 4025-000, Atlant MXM 2835-90 - gurgling can appear when the voltage in the network is unstable.
• 🔹 Beko GNE 114620 X - problems with the defrosting system, leading to ice and gurgling sounds when melting.

If you have one of these models, do not panic - gurgling in them is often a design feature. However, if the sounds appear suddenly and are accompanied by other problems, it is worth conducting a diagnosis.

7. Prevention: how to prevent gurgling in the future

To minimize the risk of gurgling sounds, follow these recommendations:

• 🔌 Stable voltage: use a surge protector or voltage stabilizer, especially if your network has frequent fluctuations.
• 🧹 Regular cleaning: every 3-6 months, clean the drainage hole and check the door seal.
• ❄️ Correct loading: do not put hot food in the refrigerator and do not overload the freezer (this will increase the load on the compressor).
• 📱 Software update: in modern models with electronic control (Samsung Family Hub, LG ThinQ), updates are periodically released that optimize the operation of the cooling system.

Also pay attention to climatic conditions. If the refrigerator is placed in a room with high humidity (for example, in a kitchen without a hood), condensation can accumulate faster, leading to clogged drains and gurgling sounds. In this case, regular ventilation or installing a moisture absorber near the equipment will help.

Frequently asked questions

Gurgling in the refrigerator appeared after defrosting. Is this normal?

Yes, in the first hours after defrosting, the gurgling may increase. This is due to the fact that freon begins to actively circulate through the “heated” system. If the sounds disappear after 6 to 12 hours, there is nothing to worry about. If not, check the drainage system for blockages.

The refrigerator gurgles and does not freeze. What to do?

This is an alarming sign that may indicate freon leak or compressor malfunction. Immediately unplug the refrigerator and call a technician. In this case, independent repair is impossible - special equipment is required for refilling freon or diagnosing the compressor.

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

No, refilling freon is dangerous procedurewhich requires certified equipment and skills. Freon is toxic, and its leakage can lead to poisoning. In addition, without special testers it is impossible to determine the exact amount of refrigerant, which can lead to repeated breakdowns.

Why does the new No Frost refrigerator gurgle louder than the old one?

Modern models (Samsung, LG, Liebherr) often are equipped inverter compressors, which are quieter, but the freon circulates in them at a different speed, which can create more noticeable sounds. Also, new refrigerators use thinner capillary tubes, where the movement of the refrigerant is heard more clearly.

The gurgling intensifies at night. Why?

At night the apartment becomes quieter, and sounds that are drowned out by household noise during the day become more noticeable. Also at night, the compressor may turn on more often due to changes in room temperature (for example, if you turn off the air conditioner or open the windows). This is normal and does not require intervention.