When choosing a refrigerator, we often pay attention to design, volume and energy efficiency, but we forget about such an important parameter as noise level. Meanwhile, a unit that is too loud can become a source of constant discomfort - especially if the kitchen is combined with a living room or bedroom. So how many decibels are considered normal for modern refrigerators, and what to do if yours “hums like a tractor”?
In this article we will figure out which ones are installed for different types of refrigerators (single-chamber, double-chamber, noise standards installed for different types of refrigerators (single-chamber, double-chamber, No Frost, inverter), how to correctly measure decibels at home and what to do if the readings exceed the permissible values. You will also learn what design features affect the volume of operation and how to reduce noise without calling a specialist.
Noise standards for refrigerators: what do the standards say?
According to European and Russian standards (in particular GOST 16317-87 and EN ISO 3744), the permissible noise level for household refrigerators is:
- 📊 35–45 dB —the optimal range for most modern models.
- 🔊 Up to 50 dB —permissible for refrigerators with a system No Frost or large volume (over 300 l).
- ⚠️ Over 55 dB —exceeding the norm, requires diagnostics.
For comparison: a person’s whisper is about 30 dB, a conversation at normal volume is 60 dB, and a working vacuum cleaner produces 70–80 dB. Thus, a refrigerator with 40 dB will be practically unnoticeable against the background of household sounds, while a model with 50 dB can already be annoying at night.
It is important to consider that noise standards depend on the type of compressor:
- 🔄 Inverter compressors (for example, in models Samsung Digital Inverter or LG Linear Compressor) they are quieter - usually within 34–40 dB.
- ⚙️ Conventional (linear) compressors can produce up to 45–50 dB, especially at startup.
- ❄️ Refrigerators with No Frost are often noisier due to the operation of fans (additional 2–5 dB).
⚠️ Attention: Manufacturers indicate the noise level in the device data sheet, but these data often correspond to laboratory conditions. In reality, the volume may increase by 5–10 dB due to vibrations, improper installation or wear of parts.
How to measure the noise level of a refrigerator at home?
To find out exactly how many decibels your refrigerator emits, use sound meter (smartphone applications like Decibel X or Sound Meter suitable for approximate measurements). Test algorithm:
Turn off all sources of noise in the kitchen (hood, dishwasher, TV)
Place the smartphone microphone at a distance of 1 meter from the refrigerator
Measure the level for 5-10 minutes (the compressor should turn on at least 1 time)
Repeat the measurements at night - the noise may increase due to silence-->
If you do not have a sound level meter, you can estimate the volume "by ear":
- 🎵 30–35 dB — a barely audible hum, like from a computer in sleep mode.
- 🔈 40–45 dB —a noticeable but not annoying sound, similar to the operation of a quiet air conditioner.
- 🚨 50 dB and above —a loud hum, vibrations, knocking are a sign of a malfunction.
Please note: peak noise (for example, when starting a compressor) may exceed the average values by 5–10 dB If the refrigerator “growls” only for the first 10–20 seconds after turning on, this is normal, but constant. hum or grinding is a cause for concern.
Why the refrigerator became louder: 7 common reasons
If your refrigerator used to work quietly, but suddenly began to make more noise, the following problems are likely:
| Cause of noise | Characteristic sounds | How eliminate |
|---|---|---|
| 🔧 Wear of the compressor | Loud humming, vibration, overheating of the housing | Replacement of the compressor (requires a master) |
| ❄️ Freezing evaporator (in models with No Frost) | Crackling, water drips, uneven noise | Defrost for 12–24 hours, check the seal |
| 🌀 Fan failure | Whistling, grinding, intermittent clicks | Cleaning the blades or replacing the fan |
| 🏗️ Incorrect installation | Rattling, knocking during operation | Align level, tighten legs |
| 🧲 Looseness compressor mounts | Knocking, clanging when starting/stopping | Tighten the bolts or install rubber gaskets |
Particularly dangerous metal clanging - it may indicate broken compressor springs or foreign objects entering the fan. cases immediately unplug the refrigerator from the network and call a technician —further work may lead to serious damage.
⚠️ Attention: If the refrigerator makes noises hissing (as in gas leak), this may be a sign of depressurization of the system. Self-repair in such cases is prohibited - professional refilling with freon is required.
How to reduce the noise of a refrigerator without repair: 5 working methods
Not always loud operation of the refrigerator is associated with a breakdown. Often it is enough to perform simple steps to reduce the noise:
Why is the refrigerator louder at night?
At night, the apartment is quieter, and any noise seems louder. In addition, some models turn on the compressor more often due to a drop in the temperature in the room (for example, when the window is open).
- Level the refrigerator.
Use a building level to make sure the unit is level. Adjust the front legs - they usually have threads for tightening.
- Check the back wall.
Make sure the refrigerator does not touch a wall or furniture. Minimum clearance - 5 cm for air circulation. Also inspect grate (black mesh on the back) - its contamination increases the noise.
- Install rubber gaskets.
Put special anti-vibration stands (sold in household appliance stores) or ordinary rubber mats under the legs of the refrigerator. This will reduce the transmission of vibrations to the floor.
- Defrost the refrigerator.
In models with a drip defrosting system, ice on the evaporator can cause a hum. Complete defrosting for 12-24 hours often solves the problem.
- Move the food.
Sometimes noise occurs due to cans or bottles touching the walls of the refrigerator. Move them away from the ventilation holes.
Quiet refrigerators: rating of models with noise levels up to 40 dB
If you are just planning a purchase and want to choose the most silent model, pay attention to the following refrigerators (data based on tests Rostesta and reviews users):
| Model | Noise level (dB) | Compressor type | Features |
|---|---|---|---|
| LG GA-B489 YDQZ | 38 | Inverter (Linear Compressor) | System DoorCooling+, antibacterial coating |
| Samsung RB30A32N0SA | 39 | Inverter (Digital Inverter) | Freshness zone CoolSelect Zone, LED backlight |
| Bosch KAN92VI30R | 37 | Inverter | VitaFresh for long-term storage of vegetables, No Frost |
| Lieberr CKes 4055 | 36 | Inverter | Low energy consumption (class A+++), quiet fan |
When choosing, pay attention not only to declared noise level, but also reviews from real users. For example, some models Indesit or Atlant can make noise louder than the declared 40 dB due to design features.
⚠️ Attention: Cheap refrigerators with a conventional (non-inverter) compressor they are rarely quieter than 42–45 dB. If noiselessness is critical for you, be prepared to pay 20–30% more for a model with an inverter motor.
When is the noise of a refrigerator a reason for warranty repair?
If your refrigerator makes more noise 50 dB (or 10+ dB louder than the passport values), this may be a reason for warranty repair. According to the Law "On the Protection of Consumer Rights", fatal defect, which affects the comfort of use, allows you to return or replace the product within 15 days after purchase. After this period, you have the right to free repair.
To prove exceeding the noise standard:
- Do video recording operation of the refrigerator with noise measurement through the application.
- Compare the indicators with passport data (they are indicated in the instructions or on the sticker rear).
- Contact the service center with a request to conduct an examination.
If the examination confirms that the noise exceeds the norm through no fault of yours (for example, due to a defective compressor), the store obliged:
- 🔧 Repair refrigerator at your own expense.
- 🔄 Replace with a similar model.
- 💰 Return moneyif repair is impossible or takes more than 45 days.
The warranty period for refrigerators is usually 1–3 years (depending on the manufacturer). Check it in the warranty card - some brands (for example, Miele) provide an extended warranty of up to 5 years. compressor.
Frequently asked questions about the noise of refrigerators
❓ Why is a new refrigerator noisier than the old one?
Modern refrigerators are often equipped with systems No Frost additional fans, which add 3-5 dB to the overall noise. In addition, inverter compressors, although quieter in constant operation, can produce a high-frequency hum, which is subjectively perceived as more annoying.
❓ Is it possible to repair a noisy compressor yourself?
No. and any intervention without special equipment will lead to freon leakage and final breakdown. The maximum that can be done independently is tighten the fastenings the compressor or replace the rubber gaskets to reduce vibrations.
❓ Which refrigerator is the quietest on the market in 2026 year?
According to the test results, the leaders in noiselessness remain models with inverter compressors from LG (series InstaView) and Samsung (line BESPOKEFor example, LG GR-B247 JVL gives out everything 35 dB thanks to the optimized cooling system and noise insulation of the case.
❓ Does the temperature in the room affect the noise of the refrigerator?
Yes, if the room is hot (higher. 30°C), the compressor works more intensely, which increases the noise by 2–7 dB. Also in winter, at low temperatures (below 16°C), some refrigerators turn on defrosting mode, which is accompanied by additional sounds (clicking, gurgling).
❓ What to do if Does the refrigerator make noise only at night?
The problem is probably in thermostat or the temperature sensor. At night, the compressor may turn on more often due to a drop in room temperature. Try:
- 🌡️ Set the thermostat to a higher temperature. (for example, from +4°C to +6°C).
- 🚪 Check the door seal - if it is worn out, warm air gets inside, causing the compressor to work longer.