Finding the critical element of the temperature control system in a household refrigerator often becomes the owner’s first task when problems with cooling arise. If your unit stops turning off or, conversely, stops freezing, the first suspicion falls on the thermostat. In brand models Stinol this unit can be located in different places, which depends on the year of manufacture and the specific series of equipment. Understanding the design is necessary to carry out competent diagnostics without calling a technician.
The thermostat, or thermostat, is an electromechanical device that opens or closes the electrical circuit of the compressor depending on the temperature in the chamber. In refrigerators Stinol, especially older series, this element often fails due to natural wear and tear or power surges. Precise location parts are determined by the difficulty of accessing them: in some cases, replacement takes 15 minutes, in others it requires complete disassembly of the case.
In this article we will look in detail at where the thermostat is located in various models Stinol, how to get to it and what to look for when checking. You will learn about the design nuances that beginners often miss, and will receive a clear algorithm of actions. In models with electronic control, there may be no mechanical thermostat at all, which requires a fundamentally different approach to repair.
⚠️ Attention: Before starting any search or replacement work thermostat, be sure to disconnect the refrigerator from the electrical network. Working with live electrical wiring is prohibited by safety regulations.
The operating principle and types of thermostats in Stinol
To successfully find a part, you need to understand what exactly we are looking for. In classic two-chamber refrigerators Stinol capillary thermostats are most often used. They are a sealed unit with a bellows, inside of which there is a sensitive liquid or gas. A long thin tube extends from this block - capillary, the end of which is fixed to the evaporator or in a special zone of the fridge compartment.
The principle of operation is simple: when the temperature in the chamber changes, the pressure inside the capillary changes, which leads to mechanical compression or expansion of the bellows. This movement is transmitted to the contacts, opening or closing the compressor power circuit. In more modern or specific models Stinol there may be electronic sensors, but they, as a rule, are not called thermostats in the everyday sense, but are part of a complex system No Frost.
The main task when searching is to distinguish the thermostat from other sensors. A mechanical thermostat always has a rotary temperature control knob located inside the chamber or on the front panel. Electronic sensors are small resistance elements without control knobs. Fault localization It begins with determining the type of control of your refrigerator.
- 🔹 Mechanical thermostats have an adjustment knob inside the refrigerator compartment or on the case.
- 🔹 The capillary tube always goes deep into the chamber wall or wraps around the evaporator.
- 🔹 Electronic models are controlled via a display on the outer panel of the door.
- 🔹 In systems No Frost the thermostat is often replaced by an air sensor and timer.
Location in models with a top freezer
In classic refrigerators Stinol with the freezer on top, the thermostat is most often located inside the refrigerator compartment. This is the most common scheme for budget and mid-range models. You need to look for it in the upper corner of the camera, usually on the right or left, depending on the modification.
Access to the device is often hidden by a plastic cover or a lampshade. In some models, the temperature control knob protrudes directly from the wall, and the mechanism itself is located immediately behind it. In other cases, especially in older versions, the thermostat may be hidden behind a decorative panel that is secured with latches or screws.
To access the part, in most cases it is not necessary to dismantle the entire refrigerator. It is enough to remove the shelves to provide a convenient overview and carefully open the plastic casing. Capillary tube in such models it passes through the back wall of the chamber and is attached to the evaporator, which is located behind the plastic panel of the rear wall or in a foamed space.
If the adjustment knob is located outside the body, then The thermostat itself is most likely located in a special technological compartment, closed with a lid. This arrangement is typical for models where the internal space is optimized to the maximum. In this case, the search shifts to the outer part of the unit.
☑️ Search in the upper chamber
Search for a thermostat in refrigerators Stinol 101, 102, 104, 107
Series Stinol 101, 102, 104, 107 are among the most widespread in the post-Soviet space. Structurally, they are very similar, but have their own peculiarities in the arrangement of control elements. In these models, the thermostat is almost always located inside the refrigerator compartment.
In models Stinol 101 and 102 the thermostat is often closed with a plastic box, which is attached to the back wall. To get to it, you need to unscrew the screws holding the lampshade (if it is combined with the control unit), or remove the special cover in the upper corner. Underneath it you will see the thermostat itself with wires suitable for it and a capillary tube extending into the wall.
Models Stinol 104 and 107 can have a remote adjustment knob located outside, above the door of the refrigerator compartment. In this case, the thermostat mechanism itself is located in a niche above the refrigerator body, under the decorative cover. To replace, you will have to remove the top cover of the unit, which requires care so as not to damage the plastic.
If handled carelessly during search or replacement, it can be damaged, which will lead to freon leakage and failure of the entire system. Tightness contour is a critical parameter, so all manipulations are carried out without excessive effort.
| Model Stinol | Handle location | Where to look for the mechanism | Access features |
|---|---|---|---|
| Stinol 101 | Inside the chamber | Upper corner, under ceiling | Removing the lighting ceiling |
| Stinol 102 | Inside the chamber | Behind the rear panel | Requires panel removal |
| Stinol 104 | Outside (above the door) | In the niche above the body | Removing the top cover |
| Stinol 107 | Inside/Outside | Depends on the modification | Checking both options |
How to remove the lampshade lighting?
Usually the lampshade is held on by latches. Carefully pry up the edge of the transparent plastic cover with a flat-head screwdriver, previously wrapped in a cloth, to avoid leaving scratches. Do not pull sharply so as not to break the lamp wires.
Features in models with the No Frost system
Refrigerators Stinol with the system No Frost have a fundamentally different temperature control scheme. Here, a classic mechanical thermostat with a capillary is often absent. Instead, air sensors are responsible for temperature control. electronic control module and air sensors.
If your refrigerator No Frost has lost cooling, you need to look not for a thermostat, but for a defrost sensor or an air temperature sensor. They are usually located in the evaporator area, which is hidden behind the rear panel of the freezer (in models with a bottom freezer) or behind a panel in the refrigerator compartment.
In some hybrid models Stinol a mechanical thermostat may still be present, but it only controls the damper that regulates the flow of cold air from the freezer to the refrigerator compartment. In this case, you need to look for it in the area of the air duct connecting the two chambers.
⚠️ Attention: In refrigerators with a system No Frost independent replacement of electronic sensors requires accurate diagnostics with a multimeter. A simple replacement “at random” may not solve the problem if the control module or defrosting heating element is faulty.
Access to the insides of the system No Frost is more difficult than in drip models. It is necessary to remove many plastic panels and possibly dismantle the fan. Air circulation in such models depends on the cleanliness of the channels, so when troubleshooting it is worth checking them too.
- 🔹 Sensors in No Frost often have a resistance that changes with temperature.
- 🔹 The malfunction may manifest itself in the form of ice freezing on the back wall.
- 🔹 Electronics are sensitive to power surges in the network.
- 🔹 To check, a multimeter and a resistance circuit are required.
Diagnostics of thermostat malfunctions
Before disassembling the refrigerator in search of the thermostat, you should make sure that it is the problem. There are several signs indicating failure of this unit. The most obvious is that the compressor works continuously without turning off, or, conversely, remains silent, even if the maximum temperature is set.
For an initial check, you can use a simple method. If the thermostat is accessible (located inside the chamber), try turning the adjustment knob. If you do not hear a characteristic click when turning, and the compressor does not respond, this is a sure sign of a faulty contact. You can also close the thermostat contacts directly (after disconnecting the refrigerator from the network!).
If, after closing the contacts, the refrigerator started up and began to freeze, then the problem is definitely in the thermostat. However, this method requires caution and understanding of electrical circuits. Safety When working with electrical appliances, it should be in the first place.
Another sign is the correct operation of the cycle. For example, the refrigerator turns off too early, without reaching the desired temperature, or turns on too late, allowing food to defrost. This indicates that the calibration of the thermostat has gone wrong or its sensitive element has degraded.
Replacement process and important nuances
Replacing the thermostat in the refrigerator Stinol is a procedure accessible to a person with basic repair skills, but requiring care. After you have found the device and are convinced that it is faulty, you need to purchase an analogue. It is important to choose a model with similar parameters, especially the length of the capillary tube and the temperature range of operation.
The replacement process begins with dismantling the old device. Carefully disconnect the wires, remembering their color coding or photographing the connection diagram. Then remove the capillary tube from its seat. Be careful: the tube is thin and breaks easily. The new thermostat is installed in the reverse order.
Pay special attention to fastening the sensing element. In some models Stinol the end of the capillary must be pressed tightly to the evaporator with a special plate. If the contact is weak, the thermostat will “lie” about the actual temperature in the chamber, which will lead to incorrect operation of the refrigerator.
After assembly and switching on, check the operation of the unit for several hours. The compressor should turn on and off normally. If the problem persists, it may not be a problem with the thermostat, but with the start relay, the compressor itself, or a freon leak.
- 🔹 Always photograph the wiring diagram before disconnecting.
- 🔹 Do not allow the capillary tube to be kinked during installation.
- 🔹 Make sure that the new thermostat has a similar temperature range.
- 🔹 After replacing, let the refrigerator operate for several hours without loading food.
Is it possible to temporarily do without a thermostat?
Theoretically, by closing the contacts, you can make the compressor runs constantly. However, this will result in deep freezing of food and possible damage to the compressor due to lack of rest cycles. This mode is only possible for a short time to check the system.
Why doesn’t the new thermostat click?
Some modern thermostats operate silently or have a very quiet switching mechanism. The absence of a loud click does not always mean a defect. The main thing is the opening and closing of the electrical circuit, which is checked by a tester.
Where to buy an original thermostat for Stinol?
Since the production of Stinol refrigerators has been stopped, it is difficult to find the “original” in the package. However, many thermostats (for example, Tam, Danfoss, K59) are universal analogues. The main thing is the correspondence of the parameters, and not the logo on the case.
What to do if the capillary tube of the new part is longer?
The excess length of the capillary tube can be carefully twisted into a ring and placed in the free space behind the back wall or in a niche. The main thing is not to break the tube and not allow it to come into contact with moving parts or heat sources.
How to understand that the problem is not in the thermostat?
If the compressor does not start when the contacts of the thermostat are closed, the problem is in the start relay, the motor itself, or the wiring. If the compressor is working, but there is no cold, there is likely a freon leak or a clogged capillary system.