Modern systems No Frost i Low Frost have greatly simplified the lives of owners of household appliances, but even they require periodic attention. If your refrigerator is an old model or you notice that an ice crust has formed on the walls, you cannot ignore it. A thick layer of ice not only reduces the useful volume of the chamber, but also forces the compressor to work at its limit.
Impaired heat transfer due to ice leads to increased energy consumption and the risk of engine failure. Many users mistakenly believe that it is enough to simply turn off the device from the network and leave the door open, but this process has its own nuances. The correct sequence of actions will help avoid unpleasant odors, the growth of bacteria and damage to the internal coating of the chambers.
In this article we will analyze in detail the entire process: from preparing the products to the first start after defrosting. You will learn how to speed up the process without a hairdryer (which is often recommended, but with risks), what cleaning products to use and why you should not suddenly change the temperature inside the chambers. Compliance with technology will extend the life of your equipment.
Preparation for the defrosting process
The first and most important stage is preparation. Defrosting the refrigerator It should not come as a surprise to the products stored in it. Plan in advance where you will put your supplies, especially if we are talking about frozen meat or prepared foods. In the summer, food can spoil in a couple of hours, so you need to act quickly and in an organized manner.
Empty the chambers of the contents. All products that you plan to store should be placed in thermal bags, ice packs, or temporarily placed on the balcony (if it is cold enough there). It is also necessary to remove all removable elements: shelves, vegetable drawers, egg trays and containers on the door. Plastic becomes brittle at low temperatures, so remove them carefully.
☑️ Preparing for defrosting
Prepare a place to collect water. When the ice begins to melt, water will flow down. Most models have a special tray to collect condensate, but its volume may not be sufficient for a large amount of melting ice. Cover the floor around the appliance with old towels or rags to prevent water from flowing under the baseboard or to the neighbors below.
⚠️ Attention: Never leave a defrosting refrigerator unattended for a long time if you have pets or small children. An open door can cause injury or foreign objects getting inside.
How long does defrosting take?
The duration of the process directly depends on the thickness of the ice layer, the room temperature and the model of your unit. On average, complete defrosting takes from 3 to 10 hours. Older models with a weeping evaporator may defrost faster than modern two-chamber systems if they have developed a "fur coat" due to a malfunction.
Do not try to artificially speed up the process using aggressive methods, which will be discussed below. Natural melting is the safest option for plastics and seals. If you are in a hurry, you can open the windows a little to increase the temperature in the room, but you should not create a draft inside the chamber.
The table below shows the approximate time costs depending on the conditions:
| Conditions | Ice thickness | Approximate time |
|---|---|---|
| Summer, hot (+25°C) | Up to 5 mm | 2-3 hours |
| Winter, cool (+18°C) | Up to 5 mm | 4-5 hours |
| Any time | More than 1 cm | 8-12 hours |
| No Frost system (planned) | Absent | 1-2 hours (wash) |
It is important to understand that the compressor must warm up to room temperature before restarting. This is necessary so that the oil in the circulation system has time to return to the engine crankcase and restore its viscosity.
What you ABSOLUTELY NOT DO
The desire to quickly complete the procedure often leads to fatal mistakes. The most common and dangerous mistake is using a knife, screwdriver or other sharp objects. The interior walls of the refrigerator, especially the back panel, hide thin evaporator tubes. Damage to one such tube will lead to a refrigerant leak. ice chipping knife, screwdriver or other sharp objects. The interior walls of the refrigerator, especially the back panel, hide thin evaporator tubes. Damage to one such tube will result in a refrigerant leak.
Repair after a breakdown of the evaporator requires calling a technician, evacuation of the system and refilling with freon, which can cost a significant part of the price of a new refrigerator. No ice is worth such risks and costs.
What to do if you do pierce the wall?
If you hear the hiss of escaping gas, stop work immediately. Open windows for ventilation (freon can be toxic in high concentrations). Do not plug in the refrigerator. The only solution is to call a specialist for sealing and filling.
The second prohibited method is using a hair dryer or heater. A directed jet of hot air can deform plastic parts, melt door seals, or cause cracks in glass shelves due to sudden temperature changes. In addition, moisture from melting ice getting on a working electrical appliance (hair dryer) is dangerous to life.
⚠️ Attention: The use of chemical ice solvents not intended for food-grade equipment can lead to the absorption of toxic vapors by the plastic. Subsequently, these odors will be transferred to the products.
The third prohibition concerns boiling water. Do not pour boiling water on ice blocks. Sharp heating can damage the structure of the plastic, make it cloudy or cause deformation of the shape of the chamber.
Correct sequence of actions
After you have emptied the refrigerator of food and removed the shelves, the stage of direct thawing begins. If you have a model with drip system, the process will go faster, since the back wall will give off heat faster. There should be no ice build-up in the systems; only hygienic washing is carried out there. No Frost There should be no ice build-up; only hygienic washing is carried out there.
Leave the doors of the refrigerator and freezer compartments completely open. Secure them if there is a risk of spontaneous closing (for example, due to drafts or pets). Place an additional rag or flat tray under the bottom of the refrigerator, where the drain is located.
While the process is in progress, start washing the removed shelves and drawers. They can be washed in the bathroom using mild detergents. Rinse them thoroughly to remove any remaining chemicals and let them dry at room temperature. Do not place cold plastic directly under hot water.
Check the water collection tray periodically. If it overflows, water will overflow onto the floor. In some models, the pan is located at the bottom, near the compressor, and access to it is difficult - in this case, monitor the water level inside the chamber and scoop it out with a rubber bulb or sponge.
Cleaning and eliminating odors
After all the ice has melted and the water has been collected, you need to thoroughly wash the internal surfaces. During operation, bacteria and mold could settle on the walls, which are sources of unpleasant odors. To wash, use a weak solution of baking soda (1-2 tablespoons per liter of water) or a special refrigerator cleaner.
Avoid using abrasive powders and hard brushes that can scratch the smooth surface of the plastic. Contaminants will subsequently accumulate in the scratches, and it will no longer be possible to wash them. The rag should be soft, microfiber or cotton.
Pay special attention to the rubber seals on the doors. Dirt and black mold often accumulate in folds. Wipe them with a cotton swab dipped in a solution of soda or vinegar. If the rubber band is very dirty, you can carefully bend it (without fanaticism) and wash the space under it.
To prevent unpleasant odors after washing, you can wipe the internal surfaces with a cloth soaked in a solution of lemon juice or put an open pack of activated carbon inside. Special odor absorbers for refrigerators also work great.
First start-up and commissioning
When the refrigerator is washed and wiped dry, do not rush to immediately load it with food. Let it dry completely and warm up to room temperature. This will take about 30-60 minutes after the wash is finished. Wet surfaces may cause condensation to form when first turned on.
Plug in the refrigerator. At this stage it is important do not load camera products. Let the equipment run idle for 1-2 hours. During this time, the unit will reach the required temperature, and the thermostat will turn off the compressor. This will be a signal that the system is working correctly.
Check the operation of the door: it should close tightly, with slight air resistance. If the door does not fit tightly, the cold will escape and the compressor will run continuously. If necessary, adjust the legs of the refrigerator to allow a slight tilt back for self-closing.
⚠️ Note: Construction details and refrigerant types may vary by manufacturer and year of manufacture. Always check the user manual (operating manual) for your specific model, especially in the "Maintenance" section.
Only after the refrigerator has entered mode and turned off, you can gradually load food. Do not put everything at once, especially in the freezer, so as not to dramatically upset the temperature balance.
Frequently asked questions (FAQ)
Do you need to defrost a No Frost refrigerator?
Technically, the No Frost system does not require defrosting to remove ice, since this happens automatically. However, it is recommended to carry out hygienic washing and drying at least 1-2 times a year to remove bacteria and odors.
Is it possible to wash the inside of the refrigerator with water?
Yes, you can wash it, but the cloth must be wrung out well. Do not allow large amounts of water to get into the ventilation holes and electrical contacts (light bulbs, thermostats).
Why does the refrigerator close poorly after defrosting?
Most likely, you were in a hurry. The rubber seal may have become deformed or simply not cooled down. Let the refrigerator run empty for a couple of hours, the rubber will straighten out and become elastic again.
How often should you defrost an old refrigerator?
Old models with manual defrosting are recommended to be unplugged when the thickness of the ice on the walls reaches 5-7 mm. This usually happens once every 3-6 months, depending on the moisture content of the food and the frequency of opening the door.