The Stinol refrigerator works, but does not cool: reasons and what to do

Is your refrigerator Stinol humming, the light inside is on, but the temperature in the chambers is far from normal? This is a classic situation when the equipment “works, but does not cool.” The reasons may lie in simple problems (clogged filter, loose door) or serious breakdowns (freon leakage, compressor failure). In this article we will analyze why 7 main reasons, Why Stinol stopped cooling, and give checklists for self-diagnosis.

Important: if the refrigerator Stinol 101/103/107 or another model from the line with the No Frost system stopped freezing, the troubleshooting algorithm will differ from models with drip defrosting. We will indicate the nuances for each type. Also pay attention to the nature of the compressor: if it turns off 5-10 seconds after starting or works without stopping, these are key symptoms for diagnosis.

Before starting repairs, check the obvious: whether the electricity is turned off panel, whether the outlet is overloaded (the refrigerator must be connected directly, without extension cords!). If everything is in order with the power supply, read on.

1. Malfunction of the thermostat (thermostat)

The thermostat is the “brain” of the refrigerator, which controls the temperature and sends signals to the compressor. If it breaks, the compressor either does not turn on at all or works chaotically. In models Stinol thermostats often fail due to power surges or mechanical damage (for example, during defrosting, ice damaged the sensor tube).

Signs of thermostat failure:

• 🔴 The compressor does not start, although the light in the refrigerator is on.
• 🔴 The refrigerator turns on for 1-2 minutes and immediately turns off.
• 🔴 In the freezer, the temperature is above -10°C, although the regulator is set to maximum.
• 🔴 When you rotate the thermostat knob, clicks are heard, but there is no reaction.

How to check the thermostat yourself? Unplug the refrigerator, remove the protective casing (usually it is secured with latches or screws) and find the thermostat - it is usually located next to the light bulb. Carefully remove the terminals and connect them together with a piece of wire (this simulates a signal about the need for cooling). If the compressor starts working, the thermostat is faulty and requires replacement. Stinol it is usually located next to the lighting lamp. Carefully remove the terminals and connect them together with a piece of wire (this simulates a signal about the need for cooling). If the compressor starts working, the thermostat is faulty and requires replacement.

⚠️ Attention: Not all models Stinol allow you to close the thermostat contacts directly. In refrigerators with electronic control (for example Stinol STS 165), this method will not work - diagnostics of the board will be required.

2. Freon leak: how to recognize and what to do

Freon is a refrigerant that circulates through the system and provides cooling. If a leak occurs, the refrigerator Stinol will run “idle”: the compressor hums, but the temperature does not drop. Leakage can occur due to corrosion of tubes, mechanical damage (for example, when moving the refrigerator) or manufacturing defects.

Signs of a freon leak:

• 🔍 The compressor works without stopping or with very short pauses.
• 🔍 Condenser (grid on the back wall) remains cold.
• 🔍 An oily spot may appear at the leak site (freon is mixed with oil).
• 🔍 If there is a leak in the freezer, ice stops forming and the food is defrosted.

Fix the leak yourself freon is not possible - it will be required special equipment for soldering pipes and charging refrigerant. However, you can check for leaks visually by inspecting the back of the refrigerator for oil stains or blistering paint (a sign of corrosion). If you find a damaged place, do not try to solder it yourself: freon is under pressure, and unprofessional repairs can lead to an explosion!

⚠️ Attention: If a freon leak occurred in a refrigerator with a system No Frost, do not turn it on until repaired! In such models, the refrigerant circulates at higher pressure, and prolonged operation with a leak can damage the compressor.

3. Compressor failure: when replacement is required

The compressor is the “heart” of the refrigerator, which pumps freon through the system. If it fails, the refrigerator Stinol may stop cooling completely or do so very weakly. Reasons for compressor failure:

• 🛠️ Natural wear (compressor service life is 10–15 years).
• 🛠️ Power surges (especially relevant for houses with old wiring).
• 🛠️ Overheating due to poor ventilation (the refrigerator is close to the wall).
• 🛠️ Hydraulic hammer (if moisture has entered the system).

How to check the compressor? Listen to its operation:

• ✅ Normal: even humming, cyclical on/off (works for about 20 minutes, rests for 10 minutes).
• ❌ Failure: the compressor clicks and immediately turns off, gets very hot, makes knocking noises sounds.

For accurate diagnosis you will need a multimeter: check the resistance of the compressor windings. In good condition, the resistance between the contacts should be within 20–50 Ohm. If the device shows an open circuit (infinity) or a short circuit (zero), the compressor is faulty and must be replaced.

How to test the compressor with a multimeter?

Disconnect the refrigerator from the network and discharge the capacitor (short-circuit it screwdriver with insulated handle). Remove the cover from the compressor and find three contacts: they are usually labeled C (common), S (start winding), R (run winding). Measure the resistance between pairs of contacts: C–S, C–R, S–R. If at least one value is outside the range of 20–50 Ohms, the compressor is faulty.

Replacing a compressor is a complex procedure that requires evacuating the system filling with freon. In most cases, it is cheaper and more reliable to contact a service center, especially if the refrigerator is more than 10 years old.

4. Clogged capillary tube or filter drier

The capillary tube is a thin channel through which freon enters the evaporator. Over time, it can become clogged due to moisture, oil, or small particles. The same thing happens with the filter-drier, which cleans freon from impurities. If the blockage is serious, the refrigerant stops circulating and the refrigerator Stinol does not cool.

Signs of a blockage:

• 🔧 The compressor runs without stopping, but the condenser (grid at the back) remains cold.
• 🔧 The temperature in the freezer is slightly lower than in the refrigerator (if clogged, freon partially passes through).
• 🔧 Frost appears on the evaporator tubes only in one place.

To remove the blockage you will need cleansing the system using special equipment. This cannot be done at home - you need a vacuum pump, a freon cylinder and experience working with refrigeration equipment. If a blockage is detected, the technician usually:

1. Pumps out the remaining freon.
2. Cleans the capillary tube with nitrogen under pressure.
3. Changes the filter-drier (it is disposable!).
4. Refills the system with new freon.

⚠️ Attention: In refrigerators Stinol with the system No Frost clogs are less common, but if they occur, it is usually not the filter that is to blame, but ice plug in the drainage system. In this case, complete defrosting for 24 hours will help.

5. Problems with the No Frost system: fan, heating element, sensors

If your refrigerator Stinol is equipped with a system No Frostbut has stopped cooling, the reasons may lie in a malfunction of its components:

Typical breakdowns:

• ❄️ Fan —if it is broken, cold air is not distributed among the chambers. Symptom: it’s cold in the freezer, but not in the refrigerator.
• ❄️ Defrosting heating element - if it doesn’t work, the evaporator becomes covered with ice and the system stops cooling. Symptom: there is a thick layer of ice on the back wall of the freezer.
• ❄️ Defrosting sensor - if it gives incorrect signals, the heating element does not turn on, and the ice blocks air circulation.
• ❄️ Control board —if it fails, the system No Frost stops working entirely.

How to diagnose?

1. Disconnect the refrigerator and defrost it for 12-24 hours. If after turning it on, the problem was icing.
2. Check the fan: when the door is open, it should rotate (in some models Stinol it turns on only when the door is closed).
3. Listen to see if the defrost heating element relay clicks (usually this happens every 8-12 hours).

If the problem returns after defrosting, it is most likely faulty The heating element or defrost sensor. You can replace these parts yourself if you have experience with electrical work. The control board requires professional repair.

6. Loose door fit or worn seal

If the refrigerator door Stinol does not close tightly, warm air constantly penetrates inside and the compressor cannot cope with the load. Over time, this causes the refrigerator to stop cooling. Reasons: (it becomes hard and cracks). packaging).

• 🚪 Wear of the sealing rubber (it becomes hard and cracks).
• 🚪 Door misalignment due to loose hinges.
• 🚪 Ingress of foreign objects (crumbs, packaging).
• 🚪 Deformation of the case (for example, after moving).

How to check the tightness? Take a piece of paper, insert it between the seal and the body and close the door. If the sheet is easily pulled out, the seal is faulty. Check the tightness around the entire perimeter.

Solutions:

• 🔧 If the seal is damaged, it needs to be replaced (for Stinol rubber bands from Atlant or Indesit similar are suitable size).
• 🔧 If the door is skewed, tighten the hinges or adjust its position.
• 🔧 If the body is deformed, try to align it, but in serious cases it will be necessary replacement.

7. Failures in the electronics: control board, relay, start-up relay

Modern models Stinol (for example, STS 165 or RF 305) are equipped with electronic control boards that control the operation of the compressor, fans and sensors. If the board fails, the refrigerator can:

• 💻 Turn on and turn off immediately.
• 💻 Not respond to temperature changes.
• 💻 Show errors on the display (if there is one).

There may also be problems s start-protection relay —it protects the compressor from overloads. If the relay is burned out, the compressor will not start. Signs:

• 🔌 The compressor does not turn on, but clicks are heard (the relay is trying to start the motor).
• 🔌 The relay gets very hot.

Diagnostics of electronic components requires special skills. If you suspect a board or relay failure:

1. Unplug the refrigerator.
2. Remove the back cover to gain access to the board and relay.
3. Inspect the board for blackened elements, swollen capacitors or burnt marks.
4. Check the relay with a multimeter (the resistance between the contacts should be within 10–30 Ohm).

If damage is visible on the board, it needs to be repaired or replaced. The start-up protection relay can be replaced yourself by choosing an analogue according to the brand of the compressor (it is indicated on it case).

⚠️ Attention: Electronic parts are sensitive to static electricity. Before working with the board, touch a grounded object (for example, a heating battery) to remove the charge.

FAQ: Frequently asked questions about malfunctions of Stinol refrigerators

My Stinol 103 works without stopping, but does not freeze. What's the matter?

Most likely, it happened freon leak or clogging of the capillary tube. Other possible reasons: a malfunction of the thermostat or compressor. Check whether the condenser is hot (the grille at the back) - if it is cold, it is. confirms a leak or blockage. If it is hot, but the compressor does not turn off, the thermostat is at fault.

The Stinol No Frost refrigerator does not cool, but the freezer is working.

Probably the problem is fan (does not distribute cold) or frozen evaporator (ice block blocks air circulation). data-i="233">fan

The Stinol compressor turns on for 5 seconds and turns off. What is this?

This is a typical symptom fault of the start-up protection relay or turn-to-turn short circuit in the compressor. The relay can be replaced independently (costs about 500–1000 rubles). If the problem is in the compressor, it will need to be replaced.

After defrosting Stinol stopped cooling. Why?

Possible reasons:

• 🔹 The tubes were damaged when cleaning the ice (freon leakage).
• 🔹 Moisture got into the system (you need to vacuum and fill with freon).
• 🔹 The defrost heating element has burned out (in models with No Frost).
• 🔹 The thermostat settings have gone wrong.

Check if oil stains have appeared on the back wall - this is a sign of a leak.

Stinol STS 165 shows error E1. What is it? does that mean?

Error E1 in models Stinol with electronic control indicates problem with the temperature sensor the refrigerator compartment. Try:

1. Turn off the refrigerator for 10 minutes, then turn it on again.
2. Check whether the sensor is frozen (defrost the refrigerator).
3. If the error remains, the sensor needs to be replaced.