The situation when the refrigerator Stinol freezer continues to freeze food properly, and in the main chamber the temperature rises to room temperature, is a classic symptom for two-compressor and some single-compressor models of this brand. The owner is faced with spoiled food in the upper compartment, while everything below turns to ice. Such a stratification of the temperature regime indicates that the cooling system has not completely failed, but the cold circulation is disrupted precisely in the refrigeration compartment circuit.
Most often, the problem lies not in a complete loss of system tightness, but in a local electronics failure, a clogged capillary tube, or a malfunction of the defrost system. Brand units Stinol, especially models of the 102, 103 and 104 series, have their own design features that must be taken into account when troubleshooting. Understanding the operating principle of your specific device is the first step to successfully restoring functionality without calling a technician.
The further algorithm of actions depends on how many compressors are installed in your refrigerator. If there are two of them, then a breakdown of one of them or its control circuit will leave the second camera in working condition. If there is only one compressor, then the reason almost certainly lies in the cold distribution system or in the control unit, which has stopped sending a signal to turn on the fan or defrost heating element.
Diagnostics of two-compressor Stinol models
In models with two compressors, each cooling circuit operates independently. This means that if the freezer freezes, it means that one compressor, its start relay and thermostat are working. The problem is localized exclusively in the circuit responsible for the refrigeration compartment. First of all, you need to listen to the operation of the unit: is the second motor-compressor working at all?
If the motor is humming, but there is no cold, there may be a freon leak in the refrigeration chamber circuit or the thermostat has failed. In models Stinol-102 and Stinol-104 thermostats often fail due to power surges. They simply stop closing the contacts, and the compressor does not receive a command to start, although there is electricity in the outlet.
⚠️ Attention: When diagnosing two-compressor models, do not try to replace the thermostat from the freezer to the refrigerator - they have different temperature response ranges, which will lead to food spoilage or freezing of the evaporator.
It is important to check the starting relay. If the compressor hums for several seconds, clicks and turns off, the relay or the motor itself requires replacement. However, if the motor is completely silent, check for voltage at its terminals using a multimeter. The lack of voltage with a working thermostat will indicate a break in the wiring or a problem with the control board, if it is present in your modification.
Problems of the No Frost system in the refrigerator compartment
If your Stinol is equipped with a system No Frostthen there is no cold in the upper compartment when the freezer is running often indicates a violation of air circulation. Cold is generated in the freezer and is forced by a fan into the refrigerator compartment through special channels. If these channels are clogged with ice or snow, the air simply does not reach the products.
The cause of the formation of an ice plug in the air ducts is most often a malfunction of the defrost system. This could be a burnt-out evaporator heating element, a faulty defrost timer or a defrost sensor. As a result, the evaporator becomes overgrown with a “fur coat” that blocks the air flow. This can be seen visually if you remove the back plastic panel inside the freezer (where the ice usually lies).
- ❄️ Ice on the back wall of the freezer is a sure sign that the defrosting system is not working.
- 🌬️ Lack of air flow from the holes in the refrigerator compartment when operating fan.
- 🔊 The fan may hum or crackle if its blades touch frozen ice.
To temporarily solve the problem, you can completely defrost the refrigerator. Unplug the appliance, open the doors and leave it for at least 24 hours (preferably two days). This will allow the ice in the hidden channels to completely melt. If after switching on the cold appears, but after a week or two it disappears again, the elements of the defrosting system need to be replaced.
Malfunctions of the thermostat and temperature sensors
The thermostat (thermostat) is the “brain” that decides when to turn the compressor on and off. In mechanically controlled refrigerators, the thermostat is a device with a capillary tube that is attached to the evaporator. If this tube has shifted, oxidized, or the mechanism itself has failed, the refrigerator compressor may not start at all. Stinol A mechanically controlled thermostat is a device with a capillary tube that is attached to the evaporator. If this tube has become dislodged, oxidized, or the mechanism itself has failed, the refrigerator compressor may not start at all.
In electronically controlled models, temperature sensors (thermistors) perform the role of a thermostat. Their resistance varies depending on the temperature of the environment. If the sensor “lies” and shows the control module that it is -10°C in the chamber, although in fact it is +15°C, the refrigerator will not cool. The sensors are checked with a multimeter in resistance measurement mode.
A frequent problem is oxidation of the contacts in the sensor connectors due to high humidity. Remove the plastic trim in the refrigerator compartment, locate the sensor (usually located closer to the ceiling of the refrigerator or on the back wall) and check the integrity of the wiring. Sometimes it is enough just to clean the contacts for the device to work.
Clogged capillary tube and freon leak
One of the most unpleasant reasons why the freezer works, but the refrigerator does not, is a partial blockage of the capillary tube or a micro-leak of refrigerant. Unlike a complete leak, in which no chamber works, with a partial loss of freon or blockage, the pressure in the system drops, and the refrigerant has time to freeze only in the primary circuit (freezer), without reaching the evaporator of the refrigeration chamber.
It is difficult to diagnose a leak or blockage at home, but there are indirect signs. Pay attention to the condenser (the grill on the back of the refrigerator). If it is only partially hot or, conversely, cold everywhere except the area near the compressor, this is a bad sign. Also, the problem is indicated by a too hot compressor housing, which works non-stop, trying to gain temperature.
| Symptom | Probable cause | Check method |
|---|---|---|
| The compressor runs constantly | Freon leak or blockage | Checking the pressure with a pressure gauge |
| The evaporator is covered with uneven ice | Lack of freon | Visual inspection after removing the panel |
| The refrigerator turns on rarely | Thermostat is faulty | Thermostat contacts are checked |
| A gurgling sound is heard | Leakage or air in the system | Audio diagnostics during operation |
To eliminate a leak or blockage, you need to call a technician with a vacuum pump and equipment for refilling freon. It is impossible to add gas or clean the system without special tools. Stinol Often uses refrigerant R600a (isobutane), which is a fire hazard, so working with it requires strict adherence to safety precautions.
Why can’t you just add freon?
Adding freon without eliminating the cause of the leak is temporary measure. In addition, there may be moisture in the system, which, when mixed with oil and freon, forms an acid that kills the compressor within a few months.
Failure of the electronic control module
Modern models Stinol (especially series 205, 256 and higher) are controlled by an electronic module. If the control board is malfunctioning, it may not supply voltage to the solenoid (valve) that opens the supply of freon to the refrigeration chamber circuit, or may not turn on the fan. At the same time, the freezer continues to operate in normal mode, since its circuit can be independent or priority.
Signs of a module malfunction: chaotic blinking of indicators on the panel, spontaneous turning on and off of the compressor, lack of response to changes in temperature settings. Sometimes a module fails due to a power surge. Visually, you can see blackened traces, swollen capacitors, or traces of burning on the board.
Module repair requires soldering skills and knowledge of electronics. It is often cheaper and more reliable to replace the entire board with a similar one or reflash the existing one, if such a possibility is provided by the manufacturer. However, before you sin on the electronics, make sure that all actuators (heating elements, sensors) are in good working order, since the module could burn out precisely because of a short circuit in one of them.
☑️ Diagnostics of the control module
Mechanical damage and door seals
Don’t forget about simple things. If the refrigerator door does not close tightly, warm, moist air constantly enters. The cooling system cannot cope with the heat influx, and the temperature rises. In a freezer that is visited less often and kept closed, the cold is retained better, creating the illusion that the lower part is in good working order.
Check the rubber seal around the perimeter of the door. On Stinol he becomes tanned over time, cracks or moves away from the body. Do a test with a sheet of paper: clamp the sheet with a door around the perimeter. If it is pulled out without force, the seal is broken. Also check the hinges: if the door is skewed and does not fit tightly, no technique will help until you adjust the awnings.
⚠️ Attention: If the seal is simply dirty, wipe it with soapy water. If it is deformed, try softening it with a hairdryer and straightening it, but if there are cracks, only replacement will help.
Frequently opening the door or placing hot foods in the chamber can also cause a temporary temperature failure. In this case, the compressor will wear out, but will eventually restore the temperature if the system is working properly. Give the refrigerator time to enter mode without loading food.
Frequently asked questions about Stinol repair (FAQ)
Is it possible to operate the refrigerator if one chamber does not work?
Technically start the device it is possible, but this will lead to overload of the compressor and its rapid failure. In addition, food in a warm chamber will spoil. It is better to turn off the device before repair.
How much does it cost to replace a compressor with Stinol?
The cost consists of the price of the unit itself, soldering, vacuuming and refilling with freon. On average, this is about 60-70% of the cost of a new budget refrigerator, which often makes repairs economically unfeasible.
Why did the refrigerator work after defrosting, but after 3 days it stopped again?
This is a classic symptom of a malfunction of the defrost system (No Frost). The ice melted, the channels became free, and the cold began to set in. But since the heating element or timer is not working, ice has accumulated again and blocked the channels. Replacement of defrosting elements is required.
Where can I find an electrical diagram for Stinol 102?
The diagrams are often pasted on the back wall of the refrigerator or are in the technical data sheet. They can also be found on the Internet by searching for “Stinol 102 refrigerator diagram”, paying attention to the modification (K, L, Q, etc.), as they may differ.