Why is the Stinol refrigerator noisy: when is it normal and when is it a breakdown?

A refrigerator Stinol is a reliable appliance, but even it can begin to make unusual sounds: humming, crackling, gurgling or vibration. Owners are often scared when they hear a noise, but this is not always a sign of a breakdown. In some cases, sounds are part of the normal operation of the unit, and in others it is a signal about the need for repairs.

In this article we will look at what noises are considered acceptable for refrigerators Stinol (including popular models STN 167, STN 195, STN 200), and which ones require intervention. You will learn how to diagnose the problem yourself, when you can get by with adjustments, and when it’s time to call a professional. We will also provide a checklist for a quick check and answers to frequently asked questions about noise in refrigerators of this brand.

Let us note right away: if yours Stinol makes noise louder than usual after moving, changing the temperature in the room or long-term inactivity, this may be a temporary phenomenon. But if the sounds do not go away for a day or more, it is worth understanding the reasons.

1. What sounds are considered normal from a Stinol refrigerator?

Any refrigerator with a compressor (and Stinol is no exception) makes sounds during operation. The manufacturer declares the permissible noise level for most models within 38–45 dB - this is comparable to a quiet conversation or computer operation. But what exactly can make noise in a working unit?

• 🔊 Compressor hum is a uniform low-frequency sound that appears when the engine starts and can slightly change its tone. In models with inverter compressor (for example, Stinol STN 185 I), the hum is smoother, without sudden jumps.
• 💧 Gurgling or gurgling is the sound of circulating refrigerant (freon) through pipes. It is especially noticeable in the first hours after switching on or when changing the cooling mode.
• 📦 Relay clicks —short sounds when the compressor is turned on/off. This works start-up protection relay, and such clicks should not be repeated more than 1-2 times per minute.
• 🌀 Fan noise —relevant for models with the system No Frost (for example, Stinol STN 200 NF). The fan may turn on periodically to distribute the cold evenly.

Normal sounds are usually cyclical not accompanied by vibration of the case. If the refrigerator Stinol makes noise continuously for more than 2-3 hours or the sounds have become sharper/louder, this is a reason to check.

2. Top 7 reasons for increased noise in a Stinol refrigerator

If the sounds go beyond the “norm”, the reasons can be divided into two groups: those that you can eliminate yourself, and those that require repair. Below is a proven checklist for diagnostics.

Uneven installation of the refrigerator (shake the body with your hand)

Are the transport bolts tightened (relevant after moving)

Is the door tightly closed (check the seal)

Are foreign objects behind the refrigerator (dust, debris)

Room temperature (optimally 16–32°C)-->

The most common cause of noise that owners miss is unremoved shipping bolts. They secure the compressor during transport, and if they are not removed, the motor will vibrate and knock on the housing. The instructions for Stinol this are indicated on the first page, but many people forget to check.

3. How to eliminate the noise of a Stinol refrigerator with your own hands

Before calling a technician, try to follow simple steps. In 60% of cases, the problem is solved without disassembling the equipment.

Step 1: Check the installation of the refrigerator

The refrigerator must be on a flat surface, without distortions. You can check this using a level or a simple test:

1. Swing the refrigerator by the upper corners diagonally. If it “walks”, the legs are not adjusted correctly.
2. Tighten or loosen the front legs (they are usually adjustable) so that the body does not swing.
3. Check whether the back wall of the refrigerator is touching the furniture or the wall. Minimum clearance - 5 cm.

Step 2: Clean the condenser and fan

Dust on the condenser (grid at the back or bottom) worsens heat transfer, causing the compressor to work harder. How to clean:

• 🧹 Unplug the refrigerator.
• 🔧 Carefully vacuum the condenser grille or rinse it with a brush.
• 🌀 If the model has a fan No Frost, check if it is blocking its ice or foreign objects.

In models Stinol with the system No Frost (for example, STN 200 NF), the fan may make noise due to ice on the blades. To eliminate:

1. Unplug the refrigerator for 12–24 hours to completely defrost.
2. After turning on, check whether the noise has disappeared.

Step 3: Check the door seal

A worn or dirty seal allows warm air to pass through, causing the refrigerator to work non-stop. How to check:

• 📄 Insert a sheet of paper between the door and the body. If it falls out, the seal is not airtight.
• 🧼 Wipe the rubber band with soapy water (without aggressive detergents!).
• 🔄 If the seal is deformed, replacement is required (for Stinol original spare parts with art. 6001000012 for most models).

4. When is the noise of a Stinol refrigerator a reason to call a repairman?

Some breakdowns cannot be repaired without special equipment. Contact the service center if:

• ⚠️ The compressor works continuously for more than 8 hours without shutdowns, and the chambers do not cool.
• ⚠️ Appears metallic grinding —a sign of a motor or fan breakdown.
• ⚠️ Refrigerator turns off after 1-2 seconds after starting (relay or compressor is faulty).
• ⚠️ Oil stains appeared on the back wall oil stains —a possible refrigerant leak.

In Stinol models with an inverter compressor (STN I series), the hum should be smooth, without sudden changes in tone. If the sound becomes either high or low, this is a sign of unstable voltage in the network or a malfunction of the control board.

The cost of repair depends on the breakdown:

What will happen if you ignore the noise of the compressor?

Long-term operation with a faulty one compressor leads to its overheating and complete failure. In the worst case, the motor winding may burn out, and then repairs will cost 70–80% of the cost of a new refrigerator. In addition, unstable operation of the compressor increases energy consumption by 20–30%.

5. Features of noise in Stinol refrigerators of different series

The design and “sound behavior” of refrigerators Stinol depends on the series. Below are the key differences:

Models with a drip system (STN 167, STN 195)

In these refrigerators, noise is usually associated with:

• 💧 Dripping water into the tray (normal sound during defrosting).
• 🔧 Compressor vibration (if the transport bolts are not removed).

Loud gurgling in the tubes may indicate excess freon - this is a manufacturing defect, which is eliminated under warranty.

Models with No Frost (STN 200 NF, STN 185 I)

Additional noise sources:

• 🌀 Fan —may make noise due to ice or falling crumbs.
• 🧊 Defrost heating element - periodically turns on with a slight crackling sound (norm).

If it appears in the freezer whistle - this may be a freon leak through microcracks in evaporator.

Inverter models (STN I series)

The inverter compressor operates almost silently, but can make:

• 🔇 High-frequency squeak during power surges.
• 📉 Uneven humming if the control board is faulty.

6. Noise prevention: how to prolong the quiet operation of a Stinol refrigerator

Following simple rules will help avoid many problems:

• 📍 Installation: the refrigerator should be on a hard floor (not on the carpet!), with a gap 5–10 cm from the walls.
• 🧹 Cleaning: every 6 months, clean the capacitor from dust and check the seal.
• ⚡ Power supply: use a surge protector - power surges shorten life compressor.
• ❄️ Defrosting: even for No Frost once a year, turn off the refrigerator for 12 hours to completely defrost.
• 🚫 Prohibited: do not place heavy objects on the refrigerator (microwave, kettle) - this deforms the case and increases vibration.

If you live in a region with a hot climate (temperatures above 30°C), consider installing an additional fan to blow the condenser. This will reduce the load on the compressor and reduce noise.

7. Frequently asked questions about the noise of Stinol refrigerators

❓ Why is the new Stinol refrigerator noisier than the old one?

Modern models are equipped with more powerful compressors for faster cooling, but they may make more noise at first. Also, new refrigerators often use a No Frostsystem that adds noise from the fan. Give the equipment 2-3 days to “break in” - the noise level should decrease.

❓ The Stinol refrigerator began to make noise after defrosting - what to do?

Probably, during defrosting the seal was damaged or moisture got into the system. Check:

1. The tightness of the door closure (use a test with a sheet of paper).
2. The presence of condensation on the back wall - if there is any, let the refrigerator stand for 12 hours.

If the noise does not go away, freon may leak through microcracks in the evaporator.

❓ Is it possible to replace the compressor in Stinol yourself?

Technically yes, but this requires:

• Special equipment for vacuuming the system.
• Knowledge on soldering copper tubes.
• Accurate refilling of freon (for Stinol usually used R-134a or R-600a).

Without experience, there is a high risk of damaging the capillary tube or incorrectly filling the system. It is better to entrust this to professionals.

❓ Why does the Stinol refrigerator make noise at night louder than during the day?

At night the apartment is quieter, so the sounds seem louder. Also possible reasons:

• 🌡️ Drop in room temperature - the compressor turns on more often to maintain the mode.
• ⚡ Power surges in the network (at night, some appliances turn off, the load on the network changes).

If the difference is significant, check the voltage in the socket with a multimeter - it should be 220–230 V.

❓ How to reduce the noise of a Stinol refrigerator without repair?

Try these methods:

• 🔌 Connect the refrigerator via voltage stabilizer.
• 🧲 Install under the legs rubber gaskets to dampen vibration.
• 📦 Rearrange the food in the refrigerator - sometimes bottles or cans resonate with the body.

If none of the tips helped, and the noise interferes with your life, contact an authorized service center StinolIn most cases, the problem can be solved, and your refrigerator will work quietly again.