Modern two-chamber refrigerators of the brand Posis are deservedly popular due to their reliability and spaciousness, however, even the most advanced equipment requires periodic care.
Many owners mistakenly believe that the presence of a partial or complete system No Frost completely eliminates the need for defrosting, but this is not entirely true.
Ice accumulation in hard-to-reach places, the appearance of an unpleasant odor or a decrease in cooling efficiency are sure signs that your the unit requires “rest.”
In this article we will analyze in detail all stages of the process, the features of different models and nuances that will help keep the equipment in perfect condition for many years.
It is important to understand that proper defrosting is not just removing ice, but a comprehensive procedure for cleaning and maintaining the internal systems of the refrigeration chamber.
Is it necessary to defrost two-chamber Pozis models
The question of the need for defrosting often causes controversy, especially when it comes to models with marking No Frost or Frost Free.
In such systems, the evaporator is hidden behind a plastic panel, and ice forms there unnoticed by the user, automatically being removed during cyclic operation compressor.
However, in the refrigerator compartment, where fresh food is stored, moisture from the air still condenses on the walls and can turn into an ice crust.
If you ignore the formation of ice, thermal conductivity the walls deteriorate, which forces the compressor to work harder and longer.
This leads to increased energy consumption and reduced motor life.
⚠️ Attention: If you notice that ice freezes unevenly or only on one side, this may indicate a violation of the door seal.
Regular defrosting is also necessary for carrying out hygienic treatment internal surfaces.
Even in the absence of visible ice, bacteria and microparticles of products accumulate over time on the shelves and walls, which can become a source of unpleasant odor.
Manufacturer Pozis recommends carrying out complete defrosting and washing at least once a year, even if there are no visual signs of icing.
Preparing for defrosting the refrigerator
Before starting any manipulations with an electrical appliance, you must carefully prepare to minimize the risks of food spoilage and damage to the floor coverings.
First of all, empty the refrigerator and freezer compartments of all products.
If defrosting is planned, try to plan the menu in advance so that by this time food supplies are minimal.
It is better to put perishable foods in a bowl with ice or temporarily transfer them to another working refrigerator.
☑️ Preparing for defrosting
Next you need to disconnect the device from the power supply.
Simply turning the temperature dial to zero is not enough - you need to physically remove the plug from the socket.
This is critical for your safety and for the compressor to cool down before the next attempt startup.
Prepare a place for melt water in advance: lay several layers of old towels or place flat containers on the floor near the refrigerator.
Water will flow not only from the drainage hole, but can also overflow over the edges of the tray if it is not emptied in time.
Remove all removable elements: shelves, vegetable drawers, egg trays and bottle holders.
It is better to wash them immediately with warm water and a mild detergent and leave to dry separately.
Plastic parts do not like sudden changes in temperature, so do not put cold shelves under hot water.
Use a sponge for washing with a soft side so as not to leave scratches on the transparent plastic.
Natural versus accelerated defrosting
There are two main approaches to removing ice: natural thawing and the use of auxiliary means to speed up the process.
The safest and recommended by the manufacturer Pozis method is this natural defrosting.
It takes longer (from 6 to 24 hours depending on the amount of ice and the temperature in the room), but guarantees no thermal shock to the materials.
Simply leave the doors open and wait for the ice to melt on its own.
Why can't you rush the process?
Using a hairdryer or hot water creates a sharp temperature difference, which can lead to microcracks in the plastic body of the evaporator or damage to the elasticity of the door seals.
If time is running out, you can use a hairdryer, but this must be done with extreme caution.
The stream of warm air should be directed only at the ice crust, avoiding hot air getting on plastic parts and rubber seals.
Keep the hair dryer at least 30 cm from the surface and constantly move it so as not to overheat one point.
Do not use it to break off ice under any circumstances a knife, screwdriver or other sharp objects.
A breakdown of the cooling circuit will lead to an immediate release of freon and expensive repairs, which are often not economically feasible.
Another method is to install containers with hot water on shelves.
Place bowls of boiling water on wooden boards or towels so as not to damage the plastic of the shelves with heat.
Close the door and wait 15-20 minutes, then repeat the procedure if necessary.
This method is more effective than the natural one, but is gentler than direct heating with a hairdryer.
Comparison table for defrosting methods
To make it easier for you to choose the appropriate method, we have prepared a comparative table of the main methods for removing ice.
It will help you weigh the pros and cons of each option depending on your situation.
| Method | Time | Safety | Efficiency |
|---|---|---|---|
| Natural | High (6-24 hours) | Maximum | Medium |
| Hairdryer (warm air) | Low (30-60 min) | Medium (risk of overheating) | High |
| Hot water in bowls | Medium (2-4 hours) | High | High |
| Mechanical (scraper) | Low | Low (risk of puncture) | High |
As can be seen from the table, the mechanical method is the most risky.
The use of scrapers is permissible only in extreme cases and only with special plastic ones scrapers included with some models.
Metal tools are strictly prohibited.
Choose a method that will allow you to maintain peace of mind and the integrity of the equipment.
Cleaning and disinfection after thawing
Afterwards Once all the ice has melted and the water has been removed, the stage of cleaning the internal surfaces begins.
Even if the refrigerator looked clean, bacteria could have settled there during operation.
Use a weak solution of baking soda (1 tablespoon per liter of water) or a special product for cleaning refrigerators.
Avoid using aggressive chemicals, abrasive powders and chlorine-containing substances that can damage plastic and leave a persistent odor.
Pay special attention to the drainage hole in the back wall of the refrigerator compartment.
Often this is where mucus and dirt that block the condensate drain.
You can clean it using a special flexible brush or a cotton swab.
Carefully pour some warm water into it to make sure that it freely goes into the container under the compressor.
The rubber door seal also requires care.
Wipe it with a soft cloth soaked in warm water, removing food debris and sticky stains.
If the seal is dry, you can lubricate it with silicone grease to restore elasticity.
This will prevent cracks and ensure a tight fit of the door, which critical for energy efficiency.
Starting the refrigerator after defrosting
After completing washing and disinfection, all surfaces must be thoroughly wiped dry.
Residual moisture may turn back into ice upon first start-up.
Install all removable shelves and drawers into their places, making sure that they are dry and securely fixed.
Close the doors and leave the refrigerator empty for 15-20 minutes so that the temperature inside is equal to room temperature and the smell of detergents disappears.
Now you can turn on the device.
Do not load food immediately after switching on!
Let the refrigerator run idle for 1-2 hours so that it reaches the required operating temperature.
Only after the cold has established inside can you gradually fill the chambers with products.
Check the operation of the thermostat.
Set the recommended temperature (usually +4...+5°C for the refrigerator compartment and -18°C for the freezer).
If your model Pozis has a super freezing function, use it when loading a large number of products for the first time.
Monitor the operation of the appliance in the first hours: it should not make any extraneous knocks or whistles.
How long does it take to completely defrost the Pozis refrigerator?
The time depends on ice thickness and room temperature. The natural process can take from 6 to 24 hours. Using a hairdryer or bowls of hot water reduces the time to 1-3 hours, but requires constant monitoring.
Is it possible to defrost a refrigerator without unplugging it?
Absolutely not. Defrosting is only possible when the power supply is turned off. A running compressor will try to compensate for the heat from the melting ice, which will lead to its overload and breakdown, as well as electric shock.
What to do if the refrigerator does not freeze after defrosting?
Wait 2-3 hours. After defrosting, the system needs time to return to normal. If after 4-5 hours the cold does not appear, check whether the door is tightly closed and whether the thermostat is installed correctly. Otherwise, you need to call a specialist.
How often do you need to defrost a two-chamber Pozis?
Models with a No Frost system in the freezer require defrosting the refrigerator compartment approximately once a year for hygiene. Models with a drip system (crying evaporator) are recommended to be defrosted completely every 6 months or as ice forms.