Refrigerators Stinol are reliable equipment, but even they are not immune to breakdowns. One of the most common malfunctions is the failure of the thermostat (temperature regulator), which is responsible for maintaining the set temperature. If the refrigerator has stopped cooling, constantly works without stopping, or, conversely, does not turn on at all, the problem may lie in this particular unit. Replacing a thermostat is a task that even a beginner can handle if you strictly follow the instructions and follow safety precautions.
In this article we will look at how to independently connect a thermostat to a refrigerator Stinol popular series (100, 101, 103, 107, etc.), what tools are needed, where the unit is located in different models and how to avoid common mistakes. You will also learn how to check the functionality of the thermostat before installation and what to do if after replacing the refrigerator still does not work. Step-by-step photos, connection diagrams and expert advice will help you complete repairs quickly and without extra costs.
Signs of a malfunctioning thermostat in a Stinol refrigerator
Before you start replacing, make sure that the problem is in the thermostat. Here are the key symptoms of its breakdown:
- 🔴 The refrigerator does not turn on, although the light inside is on (the compressor is silent).
- ❄️ The compressor works without stopping, but the temperature in the chamber does not drop to normal.
- 🌡️ The freezer compartment is too low the temperature (food is frozen), and in the refrigerator is too high.
- 🔄 The refrigerator turns off spontaneously and turns on at short intervals.
- 💥 The relay clicks are heard, but the compressor does not start.
If you observe at least one of these signs, the problem is there is a possibility that the thermostat has failed. However, before replacing, it is worth ruling out other causes, for example freon leaka malfunction of the compressor or start-up relay. To do this, you can temporarily close the contacts of the thermostat (we will talk about this below) and see if the compressor starts.
In models Stinol-101, Stinol-103 and Stinol-107 thermostats most often fail due to oxidation of the contacts or mechanical wear. In newer series (for example Stinol RF 305), electronic thermostats can be installed, which break down less often, but their diagnosis is more difficult.
Where is the thermostat in the Stinol refrigerator
The location of the thermostat depends on the model of the refrigerator. In most cases, it can be found in the following places:
- 🔧 Inside the refrigerator compartment — on the right wall, under the plastic cover (typical for Stinol-100, Stinol-101, Stinol-103).
- 🔧 On the top panel inside the chamber (typical for Stinol-107, Stinol-110).
- 🔧 Outside the chamber - on the back wall of the refrigerator, next to compressor (found in older single-chamber models).
- 🔧 In electronic models (for example, Stinol RF 325), the thermostat can be built into the control unit.
To get to the thermostat, it is usually enough to remove the plastic cover or unscrew several screws. In some cases, you will have to dismantle the shelf or drawer. vegetables. If you are not sure about the location of the unit, look instructions for your model or find a diagram on the Internet at the request “Stinol [model] thermostat diagram».
⚠️ Attention: In refrigerators Stinol with the system No Frost the thermostat can be hidden behind the fan. Do not confuse it with the defrost sensor - these are different parts!
If your refrigerator is two-chamber, please note: it may have two thermostats separately for the refrigerator and freezer compartments. In this case, replacing one will not solve the problem if. the other one is faulty.
Tools and materials for replacing the thermostat
For work you will need:
| Tool/material | Purpose | Note |
|---|---|---|
| Phillips screwdriver (PH2) | For unscrewing the panel and thermostat mounting screws | Some models may have self-tapping screws for a flat screwdriver |
| Flat screwdriver | To pry up plastic latches and remove covers | Use a thin screwdriver so as not to damage the plastic |
| Multimeter (tester) | To check the functionality of the thermostat and circuit | Even a budget model with a dialing mode is suitable |
| Pliers or wire cutters | For crimping terminals or cutting wires (if necessary) | Not necessary if the wires are in good condition |
| New thermostat | Replacing a faulty unit | Must match refrigerator model (see section below) |
| Insulating tape or heat shrink tube | To insulate connections | It is better to use heat shrink - it more reliable |
If you buy a thermostat separately, make sure that it is suitable for your model Stinol. The most common models of thermostats for these refrigerators:
- 🔹 K-59 (for Stinol-100, Stinol-101, Stinol-103).
- 🔹 TAM-133 or TAM-125 (for Stinol-107, Stinol-110).
- 🔹 Danfoss 077B6 (for electronic models, for example, Stinol RF 325).
When purchasing, pay attention to the length of the capillary tube —it must match the original one. If the tube is shorter, the thermostat will not measure temperature correctly.
Step-by-step instructions for replacing the thermostat
Now let's move on to the replacement process itself. Follow the instructions carefully to avoid mistakes.
Step 1: Turning off the refrigerator and preparation
Before starting work be sure to unplug the refrigerator. Pull out the plug from the socket and wait until the compressor stops completely (if it was running).
Remove all food from the refrigerator compartment (you do not need to defrost the freezer if it operates separately). thermostat.
Step 2: Removing the old thermostat
Carefully remove the plastic cover under which the thermostat is hidden. In most models Stinol it is secured with latches or one or two screws. Under the cover you will see the thermostat itself with a capillary tube and. a bundle of wires.
Take a photo of the wiring diagram - this will help you avoid mixing them up when reassembling. Then disconnect the wires from the thermostat terminals. If the terminals are oxidized, clean them with fine sandpaper.
Unscrew the screws that secure the thermostat to the housing and carefully pull it out along with it. capillary tube. Be careful - the tube is thin and can be damaged!
Step 3: Checking the thermostat with a multimeter
Before installing a new thermostat, check the old one for functionality:
- Switch the multimeter to the continuity mode (or resistance measurement).
- Connect the probes to the contacts
3i4of the thermostat (usually they are marked). - Turn the thermostat knob from the minimum to the maximum position.
If the device shows open circuit (resistance tends to infinity) in any position of the knob, the thermostat is faulty. If the circuit is closed (resistance is close to zero), the unit is working, and the problem may be elsewhere.
What to do if the thermostat is working, but the refrigerator is not working?
If the thermostat rings, but the refrigerator does not turn on, check:
- start-protection relay (may be burnt out),
- compressor (ring the windings),
- power circuit (the wire may have frayed or the contacts in the plug have oxidized).
Step 4: Installing a new one thermostat
Take a new thermostat and connect the wires in the same order in which they were connected to the old one. Refer to the photo you took earlier. If the wires are oxidized, clean them with a knife or sandpaper.
Fix the thermostat in its original place with self-tapping screws. Make sure that the capillary tube is not pinched or touching hot parts (such as the compressor or condenser). Insert the tube into the same hole where it was before.
Step 5: Checking the operation of the refrigerator
Replace the plastic cover, return the shelves and drawers. Connect the refrigerator to the mains and set the thermostat knob to the middle position (usually 3 or 4).
After 10-15 minutes the compressor should start. Check if the refrigerator begins to cool. If everything works, close the door and watch the refrigerator for an hour. Make sure that the compressor turns off periodically (this means the thermostat is adjusting correctly temperature).
Has the connection of all wires been checked?|Is the thermostat secured with self-tapping screws?|Is the capillary tube pinched?|Is the thermostat knob set to the middle position?|Is the refrigerator connected to a grounded outlet?-->
Thermostat connection diagrams for popular models Stinol
The thermostat connection diagram may vary slightly depending on the model. Below are typical options for refrigerators Stinol:
Stinol-100, Stinol-101, Stinol-103
These models use a thermostat K-59 with four contacts. Standard pinout:
- 🔌 Contact
3— general (power supply). - 🔌 Contact
4— output to compressor. - 🔌 Contact
6—light bulb (if any).
Wires usually have the following color markings:
- Brown —phase (power).
- Black or orange — compressor output.
- Yellow-green —grounding (if provided).
- White or red - light bulb.
Stinol-107, Stinol-110
A thermostat is often installed here TAM-133 with six contacts Basic:
- 3 i 4 — compressor circuit.
- 2 i 6 — light bulb circuit.
These models may have an additional wire for a signal lamp or fan (in systems No Frost).
Stinol RF 305, RF 325 (electronic models)
In electronic refrigerators, the thermostat can be integrated into the control board. Replacement requires a soldering iron and skills in working with electronics. If you are not confident in your abilities, it is better to contact a specialist.
To accurately determine the connection diagram find the sticker with the electrical diagram on the back of the refrigerator or in the instructions. It is usually located next to the compressor.
Typical errors during replacement. thermostat and how to avoid them
Even experienced technicians sometimes make mistakes that lead to repeated breakdowns. Here are the most common ones:
- ❌ Incorrect connection of the wires. If you mix up the contacts
3and4, the compressor will not start. check the diagram! - ❌ Pinching of the capillary tube. It should lie freely, without bends. If the tube is damaged, the thermostat will display the wrong temperature.
- ❌ Using a thermostat from another model. parameters may not be the same. For example, K-59 and TAM-133 are not interchangeable!
- ❌ Poor insulation of connections. Exposed wires can short-circuit to the refrigerator body. Use heat-shrink tubing or electrical tape.
- ❌ Incorrect installation of the thermostat knob. If the handle is in the position
0(off), the compressor will not start. on2–4.
Another common mistake is ignoring checking the thermostat before replacement. There are cases when the problem lies in an open circuit or a malfunction of the compressor, and the user changes a working thermostat.
⚠️ Attention: If after replacing the thermostat the refrigerator turns on, but after a few seconds it turns off with a loud click, the problem may be start-protection relay or interturn short circuit of the compressorDo not continue operation - this may lead to a fire!
What to do if after replacing the thermostat the refrigerator does not work
You installed a new thermostat, but the refrigerator still does not cool? Here is the algorithm of actions:
- Check the wire connections. Perhaps one of the contacts has come loose or is mixed up.
- Make sure the thermostat is on. The handle should be in the position
1–5, and not on0. - Ring circuit with a multimeter:
- Between the contacts
3and4there should be resistance (in the handle positionMAX-close to zero). - Between
3and the housing - no short circuit (resistance tends to infinity).
- Between the contacts
If all checks were successful, but the refrigerator does not freeze, the reason may be freon leak. In this case, refueling will be required. system, which is better to entrust to a professional.
It is also worth checking door. switch (if it is in your model). If it is faulty, the refrigerator may “think” that the door is open and not turn on the compressor.
FAQ: Frequently asked questions about replacing the thermostat in a Stinol refrigerator
Is it possible to replace the K-59 thermostat with a TAM-133?
No, these thermostats have different characteristics and are not interchangeable. K-59 is used in models Stinol-100/101/103, and TAM-133 - in Stinol-107/110. Installing an unsuitable thermostat can lead to incorrect operation of the refrigerator or failure of the compressor.
How to temporarily start a refrigerator without a thermostat?
If the thermostat is broken and you don’t have a new one at hand, you can temporarily close the contacts 3 on its terminal block, so the compressor will work continuously. Monitor the temperature manually and do not leave the refrigerator in this mode for a long time - this can lead to overheating of the motor. 4 on its terminal block. The compressor will work continuously, so monitor the temperature manually and do not leave the refrigerator in this mode for a long time - this can lead to overheating of the motor.
Attention: This method is only suitable for diagnostics! Long-term operation without a thermostat is dangerous.
How much does it cost to replace a thermostat at a service center?
The cost of replacing a thermostat in a workshop depends on the region and model of the refrigerator. On average:
- Replacing a thermostat - 1500–3000 rubles (excluding the cost of the part).
- Price of a new one thermostat - from 800 to 2500 rubles (depending on the model).
Independent replacement will only cost the cost of the part, but requires care.
Why does the new thermostat click, but the compressor does not starts?
This can happen for several reasons:
- Faulty start-protective relay (needs to be replaced).
- Winding burnt out compressor (diagnostics with a multimeter is required).
- No power to the compressor (check the circuit from the thermostat to the motor).
- Low voltage in the network (the compressor cannot start).
First check the relay - it most often fails.
Do you need to defrost the refrigerator before replacing the thermostat?
Defrost freezer compartment not necessary if it works separately. However refrigerator compartment it is better to empty it of food and let it thaw if there is ice on the walls. This will simplify access to the thermostat and prevent short circuits when working with wires.