If you notice that the food in your Pozis refrigerator started to deteriorate faster than usual, and the ice in the freezer is melting, this is a sure signal to action. Reduced performance can be caused by both simple settings and serious technical problems that require the intervention of a specialist. Owners of equipment from this brand are often faced with the need to manually adjust the temperature regime, especially in the hot summer months.
Before calling a technician or buying new equipment, it is worth conducting independent diagnostics. Refrigeration unit is a complex system, where disruption of one element affects the overall climate inside the chambers. In this article, we will look at how to correctly set the temperature, what factors interfere with normal operation, and when repairs are indispensable.
First, you need to understand what exactly is happening to your equipment. Pozis models They are famous for their reliability, but they are also subject to wear. Compressor may work intermittently, and the heat removal system may become clogged with dust. Only a systematic approach will allow the products to return the necessary freshness.
⚠️ Attention: If you smell a burning smell or hear an unusual hum, immediately disconnect the device from the power supply and do not try to start it again until the reasons are determined.
The main reasons for the decrease in cooling capacity
First of all, it is worth eliminating trivial operating errors. Often users themselves create the conditions under which air circulation violation occurs. For example, if you have just loaded a large amount of warm food into the chamber, it will take several hours for the system to stabilize the temperature. This is a normal process that does not require intervention.
However, there are more serious factors. Clogged condenser (grids at the back of the refrigerator) a layer of dust and pet hair reduces the efficiency of heat transfer by 30-40%. The compressor is forced to work almost non-stop, trying to compensate for losses, which leads to its overheating and premature wear.
It is also worth paying attention to the location of the equipment. If Pozis refrigerator stands close to the wall or in a niche where the distance to the side walls is less than 5 centimeters, the hot air simply has nowhere to escape. Heat transfer is broken, and the inside of the chambers becomes warmer.
- 🔥 Thermostat malfunction: The temperature sensor is “lying” and does not give a command to turn on the compressor.
- ❄️ Refrigerant leak: Freon has evaporated through microcracks, and the system has nothing to cool the evaporator.
- 🚪 Damage to the seal: the rubber on the door has dried out or torn, letting warm air from the room.
- 🧊 Evaporator freezing: a layer of ice acts as a heat insulator, preventing cold from penetrating into the chamber.
Setting the thermostat and temperature modes
The easiest way add cold is to set the regulator correctly. Most models Pozis (for example, the RK, Sviyaga, Mir series) use a mechanical thermostat. It is a rotary knob with divisions from 1 to 5 or from "Min" to "Max". Many people mistakenly believe that the number indicates degrees Celsius, but in fact it is work intensity compressor.
To increase cooling, you need to turn the knob towards a higher number. If the regulator is set to “2” and you don’t have enough cold, switch it to “3” or “4”. However, you should not immediately set the maximum value, as this will lead to continuous operation motor and freezing of products in the main chamber.
In models with electronic control (series Smart or Agidel s display) settings are made through the panel on the case. Here you set a specific temperature. The optimal value for the refrigerator compartment is considered to be from +3 to +5 degrees, and for the freezer - minus 18 degrees and below.
It is important to take into account seasonality. In summer, when the room is hot, the load on refrigeration circuit has to be increased, in winter - reduced. If the room is +25°C and the regulator is set to minimum, the refrigerator simply cannot cope.
☑️ Checking the temperature settings
Diagnostics of sealing rubber and tightness
One of the most common causes of loss of cold is a loose fit of the door. Sealing rubber Over time, it loses elasticity, cracks or becomes deformed. Through the resulting cracks, warm, moist air constantly enters the chamber, which condenses and turns into ice, and the temperature inside rises.
You can check the tightness with a simple “paper test”. Take a sheet of paper, clamp it with the door around the perimeter and try to pull it out. If the paper is pulled out easily and without resistance, it means in this place contact is broken. Pay special attention to the corners of the door - wear occurs most quickly there.
If the rubber is simply dirty, it can be washed with warm water and soap. If it is hardened, try softening it with glycerin or a special rubber restoration spray. In case of mechanical damage (cracks, tears), you will need replacement of the seal a new one, since gluing will only give a temporary effect.
| Problem | Symptom | Solution |
|---|---|---|
| Pollution | Stickiness, plaque | Wash with soapy water |
| Petrification | Rubber is hard, not stretches | Treat with glycerin or replace |
| Deformation | Waves, creases | Warm with a hairdryer and straighten |
| Rupture | Through hole | Only complete replacement of the part |
⚠️ Attention: When replacing the seal, make sure that the corners of the new rubber match the design of the door of your model Pozis. Universal tapes may not fit the profile.
The influence of the defrosting system on temperature
Refrigerators Posis can be equipped with both a drip defrosting system and technology No Frost. In drip models (“Weeping Wall”), moisture flows down the back wall into the drainage hole. If this hole is clogged with crumbs or ice, the water does not drain, freezes and forms an ice plug, which interferes with normal cooling.
In No Frost systems, a heating element and a timer are responsible for removing moisture. If Defrost heating element the defrost sensor burns out or fails, the evaporator becomes overgrown with a “coat” of ice. The fan stops driving air through the frozen radiator, and the cold stops flowing into the chamber, although the compressor may hum continuously.
For diagnostics, defrost the refrigerator completely (for 24 hours with the doors open). If after switching on it works normally, but after 1-2 weeks the problem returns, it means that the water drainage or defrost system is faulty. It is necessary to check the electrical circuits with a multimeter.
How to defrost a refrigerator correctly?
Disconnect the device from the network. Remove all food. Leave the doors open for 24 hours. Place rags to catch water. Do not use a knife or hair dryer to chip ice - this could damage the evaporator! After defrosting, wipe the chamber dry and plug in without food for 2 hours.
Checking the operation of the compressor and start relay
The heart of any refrigerator is compressor. If it works intermittently, there will be no cold. Normally, the motor should operate cyclically: for example, it hums for 15 minutes, rests for 20 minutes. If you hear that the compressor turns on, makes a few clicks and turns off, or hums, but does not start, the problem is in start relay or the motor itself.
The relay is a small plastic block that is put on the contact of the compressor. Over time, its contacts burn out, and it stops providing the necessary impulse to start. Replacing the relay is a simple procedure that you can perform yourself by selecting an analogue for your model Pozis.
If the compressor is hot, but silent, or makes a metallic knock, there may be an interturn short circuit of the winding or jamming of the piston group. In this case, it is required replacement of the compressorwhich is a complex and expensive repair that requires evacuation of the system and refilling with freon.
- 🔊 Loud hum: a sign of bearing wear or problems with motor mounting.
- 🔇 Silence: lack of power or burnt compressor.
- 🔥 Case heating: normal for a running motor, but if it is hot to the point of being touchable, it is an overload.
When you need to call a repairman
There are situations when independent actions are not only useless, but also dangerous. If you have checked the settings, cleaned the condenser and replaced the seal, but the temperature does not dropthere is most likely a refrigerant leak. Freon circulates in a closed circuit, and if there is less of it, it means that a microcrack has formed somewhere.
It is impossible to diagnose a leak at home. The technician uses a leak detector, finds the location of the damage, seals it and refills the system with the required amount refrigerant. Also, professional help is needed when replacing a compressor or restoring the No Frost system.
Not try to open sealed tubes or change the compressor yourself without special equipment. This can lead to the final failure of the equipment and even a fire hazard.
FAQ: Frequently asked questions
Why does ice freeze in the Pozis refrigerator, but there is not enough cold?
This is a classic sign of impaired air circulation. The ice crust on the evaporator (often hidden behind a plastic panel) acts as an insulator. Cold is generated, but not transferred to the chamber. Defrosting and checking the defrosting system is required.
Is it possible to increase the power of the refrigerator by installing a stronger thermostat?
No, it is not possible. The thermostat must match the parameters of the factory compressor and evaporator. Installing a “stronger” regulator will force the motor to work without stopping, which will lead to its combustion, and not to an improvement in the cold.
How often do you need to defrost a Pozis refrigerator?
Models with a drip system are recommended to be defrosted 1-2 times a year for prevention. No Frost systems do not need defrosting, but general cleaning with unplugging should be done once a year.
Does the amount of food affect the cooling rate?
Yes. An empty refrigerator cools faster, but it also cools faster when the door is opened. A full load (about 2/3) helps to accumulate cold, but food should not block the ventilation holes.