Double-chamber refrigerators Stinol are deservedly considered reliable equipment, however, even time-tested units have failures in the thermoregulation system. When the temperature in the chambers no longer corresponds to the set values, or the compressor works without interruptions, most often the culprit is a failed one. This small device is responsible for turning the motor on and off, maintaining the necessary microclimate for storing food. thermostat. This small device is responsible for turning the motor on and off, maintaining the necessary microclimate for storing food.
Independent replacement of this element is quite within the capabilities of a home craftsman, if he acts carefully and follows the sequence of operations. You do not need complex specialized equipment, just a standard set of tools and an understanding of the basic principles of operation of the refrigeration machine. In this article, we will look at all the nuances of diagnosing and installing a new temperature sensor so that you can return your equipment to working order.
Before you start disassembling, you should make sure that the problem lies in the thermostat, and not in a freon leak or a compressor malfunction. A characteristic sign of a sensor failure is the absence of a click when turning the adjustment knob or constant operation of the refrigerator with signs of deep freezing of food. If you observe exactly this picture, then repairing the thermostat is the most likely solution to the problem.
Symptoms of a malfunctioning thermostat
Understanding the exact signs of a breakdown allows you to avoid unnecessary diagnostics and immediately order the necessary spare part. In two-chamber models Stinol thermostat failure manifests itself quite clearly, and an attentive owner will notice changes in the behavior of the unit long before a complete stop. Symptoms can vary from a complete absence of cold to the formation of an ice coat.
One of the most obvious signals is a situation when the compressor either does not start at all, or runs continuously without turning off. In the second case, food in the refrigerator compartment may freeze, and a thick layer of ice forms on the back wall. This indicates that the sensor is “stuck” in the “on” position and does not send a signal to turn off the motor when the desired temperature is reached.
⚠️ Attention: If the refrigerator operates around the clock without stopping, this leads to overheating of the compressor and a significant increase in electricity consumption. Do not delay repairs, so as not to provoke a more expensive engine breakdown.
You should also pay attention to the temperature indicators, if the model is equipped with them, or simply listen to the sounds of operation. The absence of a characteristic click when turning the dial to minimum or maximum often indicates mechanical damage to the internal contacts of the device.
Necessary tools and preparation
To successfully replace the thermostat in the refrigerator Stinol you will need a minimum set of tools that can be found in the arsenal of most men. It is important to prepare the workplace in advance, providing good lighting, since some fastening elements may be located in hard-to-reach places.
You will need the following tools and materials:
- 🔧 Phillips and flat-head screwdrivers for dismantling panels and terminals.
- 🔑 An adjustable wrench or a set of open-end wrenches (often a 10 or 12 mm wrench is required).
- ✂️ Pliers or pliers for working with wires and clamps.
- 🧹 Clean rags for wiping internal surfaces.
- 🧤 Gloves to protect hands from sharp metal edges.
Before starting work, be sure disconnect the refrigerator from the power supply. This is a critical safety rule and, if ignored, may result in electric shock. It is also recommended to defrost the unit if a lot of ice has accumulated in the chambers, so that water does not get on the electrical contacts.
Removing the old thermostat
The process of removing a faulty temperature sensor in refrigerators Stinol of the two-chamber type has its own characteristics, depending on the specific modification, but the general algorithm of actions is the same. Most often, the thermostat is located inside the refrigerator compartment, hidden behind a plastic panel or directly in the niche of the adjustment knob.
First you need to remove the temperature adjustment knob. It may be a tight fit, so be careful not to break the plastic stem. After removing the handle, you will see a nut or screw securing the thermostat housing. Unscrew the fasteners and carefully remove the device from the seat.
Pay special attention capillary tube to the thin copper conductor that comes out of the thermostat housing and is fixed inside the chamber. It is very fragile and easily damaged. Carefully release the tube fasteners on the chamber wall, trying not to jerk it sharply. Then remove the terminals from the thermostat contacts.
⚠️ Attention: The capillary tube is filled with sensitive gas. Damage to its tightness will lead to failure of even a working thermostat. Avoid kinks and creases in the tube during dismantling.
Installation and connection of a new sensor
Installation of a new thermostat is carried out in the reverse order of dismantling. Make sure that the purchased part fully matches the technical characteristics and dimensions of the removed device. For two-chamber Stinol thermostats of the TAM series or similar parameters are often used.
Insert the new thermostat into the niche and secure it with a nut or screw. Then carefully route the capillary tube along the same route where it was secured previously. The end of the tube must be securely fixed in its proper place on the evaporator or chamber wall in order to correctly read the temperature.
Connecting electrical wires requires care. Typically, three wires go to the thermostat: phase, neutral and ground (or wire to the lamp/compressor). Use the photo you took earlier or the markings on the terminals to make the correct connections. Place the terminals tightly onto the contacts of the new device until you hear a characteristic click.
☑️ Check before assembly
Comparison of popular models of thermostats for Stinol
When choosing a spare part, it is important to focus not only on brand, but also on specific parameters, such as the length of the capillary tube and the temperature range of operation. For different series of refrigerators Stinol modifications with different characteristics may be required.
Below is a table to help you navigate the main types of thermostats compatible with this equipment:
| Thermostat model | Capillary length tubes | Type of contacts | Note |
|---|---|---|---|
| TAM-112 | 0.6 - 0.8 m | 2 contacts | Basic model for old Stinolov |
| TAM-133 | 1.2 - 1.4 m | 3 contacts | Has output to a red light bulb |
| K-59 | 1.0 m | 2 contacts | Analogue for more modern series |
| TAM-145 | 2.5 m | 2 contacts | For models with No Frost |
Pay attention to the presence of a third contact. If your refrigerator has an indicator light that lights up when the compressor is running, you will need a thermostat with three terminals. Installing a two-pin analogue will result in the lamp simply stopping burning, although the refrigerator will work.
Is it possible to use a thermostat with a longer tube?
Yes, you can. The excess length of the capillary tube is carefully wound into a ring and secured inside the case or behind the rear panel, being careful not to violate the bending radius. The main thing is that the tube is not shorter than the original.
Setting up and testing operation
After assembling all the panels and connecting the refrigerator to the network, you should not immediately load it with food. Let the unit idle to reach operating mode. The initial startup can take from 30 minutes to several hours depending on the ambient temperature in the room.
Check the operation of the thermostat by turning the knob to the minimum and maximum positions. The compressor must respond to these changes: when set to minimum, it should turn off (or not turn on), and when turned to maximum, it should start. The cyclic operation should be approximately 10-15 minutes of work and 15-20 minutes of rest.
If the refrigerator Stinol after replacement begins to behave incorrectly, for example, it often turns on or does not freeze enough, it may require calibration or checking the tightness of the capillary tube fastening. Make sure that the sensitive element fits tightly to the cooled surface.
⚠️ Attention: Technical characteristics and location of the elements may vary slightly depending on the year of manufacture of your model. It is recommended to check the connection diagram with the markings on the body of the thermostat itself or in the official manual.
Frequently asked questions (FAQ)
Is it possible to replace a thermostat with an analogue from another manufacturer?
Yes, this is possible if the main parameters match: temperature response range, capillary tube length and number of contacts. The main thing is that the physical size allows the part to be installed in its normal place.
Why, after replacement, does the refrigerator freeze less than before?
This may be due to incorrect installation of the capillary tube (it should be in close contact with the evaporator) or because the new thermostat has slightly different calibration settings. Try setting the regulator to the maximum value.
Do you need to call a technician to replace the thermostat?
If you have basic skills in working with tools and an understanding of electrical safety rules, you can do it yourself. However, if you are not confident in your abilities, it is better to entrust the work to a professional so as not to damage the fragile capillary tube.
How long does it take to replace a thermostat?
An experienced technician needs about 20-30 minutes. If you replace it yourself without experience, the process can take from 1 to 1.5 hours, including time for careful dismantling and checking connections.