Replacing the thermostat in the refrigerator Stinol: a detailed guide with photos and nuances

Thermostat (or thermostat) is a key element of the refrigerator Stinol, which is responsible for maintaining the set temperature. When it fails, the compressor either runs without stopping or does not turn on at all. Replacing the thermostat in the refrigerator Stinol is a task of medium complexity that you can handle on your own if you know the nuances of disassembly and connection.

In this article we will look at all stages of repair: from diagnostics malfunctions before testing after installing a new thermostat. You will learn what tools you will need, how not to damage the capillary tube and where to buy original spare parts. And also - typical mistakes that beginners make, and how to avoid them.

⚠️ Important: if your refrigerator Stinol is still under warranty, self-repair will void it. In this case, contact the service center.

Signs of a faulty thermostat in the Stinol refrigerator

The first signal of problems with the thermostat is incorrect operation of the compressor. Here are the main symptoms:

• 🔄 The refrigerator does not turn off: the compressor runs constantly, even if the door is closed and the food is frozen.
• ❄️ Temperature is too low: ice forms in the main chamber, food are freezing.
• 🔥 The refrigerator does not cool: the compressor does not turn on, although the light inside is on.
• 🔊 Clicks without starting: characteristic clicks of the relay are heard, but the motor does not start.
• 📉 The temperature “floats”: either too cold, then too warm for no apparent reason.

These signs may indicate other faults (for example, a freon leak or a compressor breakdown), but in 70% of cases the thermostat is to blame. To confirm the diagnosis, you can carry out a simple test:

1. Unplug the refrigerator.
2. Remove the thermostat protective cover (usually it is located inside the chamber, next to the lamp).
3. Find two wires going to the thermostat and short them together (use a screwdriver with an insulated handle!).
4. Plug in the refrigerator.

If the compressor starts after closing the contacts, the thermostat is faulty and requires replacement. If not, the problem is in another unit (relay, motor, starting capacitor).

Yes, the compressor does not turn off|No, but the temperature is too high|No, it does not cool at all|I don’t know, I need to check-->

Which thermostat is suitable for a Stinol refrigerator

Refrigerators Stinol (models STN 100, STN 165, STN 185 etc.) are usually equipped with thermostats like K-59 or TAM-133. However, the exact model depends on the year of manufacture and modification. Here's how to choose the right spare part:

🔍 How to find out the exact model of the thermostat?

1. Look at the label inside the refrigerator (usually on the side wall or top).
2. Take a photo of the old thermostat - there should be markings on it.
3. If there is no marking, measure the length capillary tube (it should match the original!).

⚠️ Attention: if you buy a thermostat with a shorter capillary tube, it will not measure the temperature correctly. A tube that is too long may bend and break during installation.

Tools and materials for replacing the thermostat

For work you will need:

• 🔧 Screwdrivers: Phillips (PH2) and flat (3–4 mm).
• 🔨 Pliers or side cutters for removing clamps.
• 📏 Multimeter (for checking contacts).
• 🧲 Magnetic holder (so as not to lose the screws inside the case).
• 🧴 Alcohol or solvent for cleaning contacts.
• 📦 New thermostat with capillary tube.
• 🔌 Electrical tape or heat-shrink tubing (to insulate connections).

🔹 Additionally, it may come in handy:

• 📸 Camera (to photograph the wiring diagram).
• 🧤 Rubber gloves (the capillary tube is fragile and can be easily damaged).
• 🔦 Flashlight (the lighting inside the refrigerator is usually weak).

If you have model Stinol s electronic control unit (for example, STN 200 E), replacing the thermostat may be required software flashing after installation. In this case, it is better to contact a specialist.

Where to buy a thermostat for Stinol?

Original thermostats Stinol possible find:

- In branded service centers (the most reliable option, but more expensive).

- On AliExpress or eBay (cheaper, but the risk of running into a fake).

- In stores spare parts for refrigerators (for example, "Holod-Service", "Rembyttekhnika").

- On Avito or Yule (used parts, but check the functionality!).

The average price of an original thermostat K-59 is 800–1500 ₽, analogues are 500–1000 ₽.

Step-by-step instructions: how to remove the old thermostat

Before starting work unplug the refrigerator and defrost it (if there is ice). Next, follow the algorithm:

Disconnect the refrigerator from the outlet|Remove all products and shelves|Take a photo of the location of the wires|Prepare tools and a new thermostat-->

1. Remove the top cover of the refrigerator.

   It is attached to 2–4 screws (depending on the model). Carefully pry it out with a flat screwdriver and set it aside.

2. Remove the control panel.

   On models Stinol STN 165/185 it is secured with latches and 1-2 screws. Remove the temperature control knob (pull it towards you) and unscrew the screws.

3. Disconnect the wires from the thermostat.

   Take a photo of the connection diagram! Usually there are 3-4 wires:

   • Orange/red — power from the compressor.
   • Brown/black —ground.
   • Yellow/white —signal from sensor.

Remove the capillary tube.

It is attached to the evaporator with a plastic clamp or metal bracket. Do not pull the tube - it is thin and may burst! Carefully loosen the fastening and pull it out it.

Remove the thermostat from the mount.

It can be fixed on a metal plate or a plastic holder. Unscrew the screws and remove the part.

⚠️ Attention: If the capillary tube is stuck to the evaporator, do not tear it off by force. Water the mounting area alcohol or use a hair dryer to heat (maximum 60°C).

Installing a new thermostat: nuances and connection diagrams

The new thermostat is installed in in reverse order, but there are several critical points:

1. Check the capillary tube.

   It should be solidwithout kinks or cracks. If the tube is damaged, the thermostat will show the wrong temperature.

2. Connect the wires according to the diagram.

   Use your photo or standard diagram for Stinol:

   
   Terminal 3 (blue) → Compressor
   Terminal 4 (brown) → Ground
   Terminal 6 (yellow) → Temperature sensor
     

   If the wires are oxidized, clean them sandpaper and treat with alcohol.

3. Secure the capillary tube.

   It should fit tightly to the evaporator. Use original clamp or a plastic tie (but do not overtighten!).

4. Install the adjustment knob.

   On some models Stinol it is fixed retaining ring —don’t lose it!

🔧 Check before assembly:

• Make sure that all wires tight are seated are in the terminals.
• Blow out the capillary tube (it should not be pinched).
• Check that the adjustment knob turns smoothlywithout jamming.

Testing after replacement: how to make sure everything works

After assembly, do not rush to load the refrigerator with food. First, carry out diagnostics:

1. Plug in the refrigerator.

   The compressor should start in 5-10 minutes. If it does not start, check the wire connections.

2. Check the operating cycle.

   Normally, the compressor should work 15–20 minutes, then turn off for 30-40 minutes. If it works without stopping or turns off too quickly, the thermostat is faulty or incorrectly installed.

3. Measure the temperature.

   Place the thermometer in the center of the chamber. After 2-3 hours it should be:

   • +4…+6°C in the main chamber.
   • -18…-20°C in the freezer (if the thermostat is also responsible for it).

Check the adjustment knob.

Turn it to maximum cooling - the compressor should turn on. Return to the middle position - after 10-15 minutes it should turn off.

⚠️ Attention: if after replacing the thermostat the refrigerator Stinol hums, but does not freeze the problem may be in freon leakage or clogged capillary system. In this case, you need a master.

Typical replacement errors thermostat and how to avoid them

Even experienced professionals sometimes make mistakes. Here are the most common ones:

🔹 Another common problem: after replacing the thermostat, the refrigerator Stinol starts make a lot of noise. The cause is usually that the capillary tube is touching the housing or compressor. The solution is to carefully bend it and secure it with electrical tape.

FAQ: Frequently asked questions about replacing the thermostat in Stinol

Is it possible to replace the thermostat without defrosting refrigerator?

Technically yes, but not recommended. Ice can interfere with access to the fasteners, and if you are not careful, you risk damaging the capillary tube. If there is no time for defrosting, at least remove the ice around the thermostat with a hairdryer (do not direct hot air at the plastic!).

How much does it cost to replace a thermostat in the service?

Cost of work in service centers:

• 1500–2500 ₽ — replacement of the thermostat without spare parts.
• 3000–4500 ₽ —turnkey (including parts).

If the refrigerator is under warranty, the repair is free.

What to do if after replacing the thermostat the refrigerator does not turn on?

Check:

1. The correct connection of the wires (check the photo).
2. Fuse (may burn if shorted).
3. Voltage in the socket (should be 220–230V).
4. Compressor condition (if it does not hum, it may have burned out).

If everything is in order, but the refrigerator does not work, the thermostat may be defective.

How to check the thermostat with a multimeter?

Switch the multimeter to continuities and connect the probes to the terminals 3 and 4 (see diagram). At room temperature, the contacts should be closed (place the thermostat in cold water - the contacts should open. If this does not happen, the part is faulty.

Is it possible to install a thermostat from another refrigerator?

It is possible, but only if:

• Coincide type (for example, K-59 on K-59).
• Length capillary tube identical.
• Connection diagram compatible (number and location of terminals).

For example, a thermostat from Atlanta or Biryusy may be suitable, but it is better to take the original for Stinol.