The appearance of a foreign odor in the refrigerator compartment is a signal which cannot be ignored. Often, equipment owners notice that a smell has appeared in the refrigerator only after it becomes intrusive and begins to permeate the food. This is not just a matter of comfort, it is an indicator of a violation of sanitary standards or a technical malfunction.
The primary task of the owner is to determine the nature of the amber and its source. Specific odor It can be caused either by a banal spoiled product or by more serious problems, such as a clogged drainage system or a thermostat failure. In this article, we will analyze in detail why there is a smell in the refrigerator and how to effectively fix the problem.
Primary diagnosis: determine the source of the aroma
First of all, it is necessary to conduct a thorough audit of the contents of the chambers. Often the answer to the question “why does the refrigerator smell” lies in a forgotten piece of cheese or a cracked egg, the juice of which could have flowed into hard-to-reach places. Organic residues during decomposition, they release hydrogen sulfide and other gases that quickly spread throughout a closed volume.
If a visual inspection of the products does not produce results, you should listen to the operation of the unit. Bosch Refrigerators, Liebherr or Indesit may react differently to malfunctions, but the hum of the compressor or the absence of the characteristic sound of a running motor can suggest the direction of search. Sometimes a burning or plastic smell indicates overheating of electrical components.
Pay attention to the location of the smell: does it come from the back wall, from the freezer, or is it felt evenly throughout the entire volume.
⚠️ Attention: If you smell a strong smell of burnt rubber or scorched wiring, immediately Unplug the appliance and move it away from the wall. Operation of such equipment may lead to a short circuit or fire.
Organic reasons: food and their storage
The most common reason for the appearance of an unpleasant odor in the refrigerator is a violation of the rules for storing food. Food spoilage happens faster if the temperature conditions are chosen incorrectly or if the products are stored without packaging. Even a fresh-looking fruit with a damaged peel can become a source of mold.
Meat and fish products require special attention. At temperatures above +4°C, bacteria begin to actively multiply in them, releasing corpse poison and ammonia. If the refrigerator smells of rotten meat, check the tightness of the meat containers. Plastic trays With loosely fitting lids, odors are allowed to pass through, which are then absorbed into the walls of the chamber and rubber seals.
Dairy products are also prone to rapid souring, especially if they stand on the door, where the temperature fluctuates (fluctuates) most often.
- 🥩 Check the expiration dates of deli meats every 24 hours.
- 🥛 Store open packages of milk and kefir in a tightly closed container.
- 🍓 Separate fruits from vegetables, so how some of them emit ethylene, which accelerates the rotting of neighbors.
Technical faults and plastic smell
If the food is in order, but the refrigerator smells of plastic or chemicals, the problem may lie in the device itself. A new refrigerator may have a factory grease or plastic smell that usually dissipates within a few days. However, if the equipment is several years old, the appearance of such aromas is an alarming sign.
Often the source of the odor becomes clogging of the drainage hole. The water that drains during defrosting does not go into the pan, but stagnates inside the housing, causing flowering and the appearance of a musty smell. In this case, it is necessary to clean the channel with a special brush or soft wire.
Another possible reason is failure Heating element defrost or problems with the wiring, when the insulation begins to melt from overheating.
⚠️ Attention: Independent disassembly of the compressor compartment or repair of the electrical part without the appropriate skills can lead to electric shock and loss of warranty.
Why does a new refrigerator smell like plastic?
In new models, the smell may come from packaging materials remaining inside, or from the initial heating process of the insulating foam. It usually disappears after 2-3 days of work.
Mold and mildew: a hidden threat
The appearance of a damp or earthy smell often indicates the proliferation of mold fungi. Mold spores can hide in microcracks in plastic panels, under rubber door seals or in vegetable containers. Moisture is an ideal environment for their development, especially in areas with poor air circulation.
They are especially susceptible to the formation of fungus refrigerators with the No Frost systemif the evaporator does not undergo regular sanitation. Air passing through a contaminated heat exchanger carries spores throughout the chamber. It is not possible to eliminate such a smell by simply washing the shelves - deep disinfection of hidden cavities is required.
To fight fungus, use special antibacterial agents or solutions based on vinegar and hydrogen peroxide.
☑️ Check for mold
Table: Determination of the type of odor and method of elimination
For quick diagnosis, use the following table, which will help compare the nature of the odor with the probable cause and method of solving the problem.
| Type of odor | Probable cause | Method elimination | Complexity |
|---|---|---|---|
| Rotten, hydrogen sulfide | Spoiled products | Inspection, washing, ventilation | Low |
| Musty, damp | Mold, drainage blockage | Cleaning channels, disinfection | Average |
| Melted plastic | Faulty wiring, heating element | Call a technician, diagnostics | High |
| Chemical, sharp | New refrigerant, packaging | Ventilation, washing with soda | Low |
| Burnt rubber | Compressor overheating | Urgent repair | High |
Effective methods of neutralizing odors
After eliminating the root cause, it is necessary to neutralize residual effects. There are many folk and professional remedies that will help restore freshness. Activated carbon is one of the best adsorbents: just crush 10-15 tablets and leave in an open container on a shelf for a day.
Also do the job perfectly special odor absorbers, which can be purchased at hardware stores. They work on the principle of ion exchange or contain gel formulations with flavors. However
For prevention, you can use natural coffee beans or an open pack of soda, which will work as a permanent filter.
- ☕ Ground coffee absorbs odors and gives a light coffee aroma.
- 🍋 A lemon peel or an apple slice will naturally freshen the air.
- 🧂 A solution of baking soda (2 tablespoons per liter of water) is ideal for washing interior walls.
Prevention and operating rules
To ensure that the question “what is that smell in the refrigerator” no longer arises, you must follow the operating mode. Regular defrosting (for drip systems) and washing the chamber at least once a quarter will prevent the accumulation of bacteria. Temperature conditions must correspond to the type of stored products: for the dairy department it is optimal +2..+4°C, for the general compartment +4..+6°C.
Do not place hot food inside the chamber - this creates condensation and stress on the compressor, which can lead to the smell of overheated oil. Use airtight containers for all foods with a strong aroma, such as smoked meats, fish or spices.
Keep door seals clean by wiping them with a dry cloth to prevent crumbs from sticking and mold developing in the folds.
How often should you clean your refrigerator?
General cleaning with complete defrosting is recommended once every 3-4 months. You should wipe down shelves monthly and check expiration dates on products. If any stains or spilled liquids appear, clean up immediately.
Why does it smell like sewer?
The smell of sewer almost always indicates a dry water seal in the drainage system or a clogged drain hose. Water stops blocking the exit of gases from the general ventilation system or siphon if the refrigerator is connected to the sewer (in some models).
Can an ozonizer be used?
Yes, household ozonizers effectively kill bacteria and eliminate odors. However, they must be used strictly according to the instructions, removing products from the chamber during processing, since ozone in high concentrations is toxic.
What to do if the smell remains after washing?
If the smell persists, it may have been absorbed into the plastic or rubber parts. Try leaving the refrigerator turned off and open for 24-48 hours with a fan running in the room. Treatment with a weak solution of vinegar will also help.