Cleaning filters in the refrigerator: when, how and why to do it

A refrigerator is not just a household appliance, but a complex system that requires regular maintenance. One of the key elements to ensure freshness of food and the absence of unpleasant odors is filters. They come in different types: carbon (to absorb odors), antibacterial (to destroy germs) and water (in models with a dispenser or ice maker). Over time, filters become clogged, lose efficiency, and sometimes even become a source of contamination.

Many users forget about the need to clean filters until they encounter a problem: an unpleasant odor, cloudy water from the dispenser, or even refrigerator breakdown. Meanwhile, regular filter maintenance not only extends the service life of equipment, but also guarantees the safety of stored products. In this article we will figure out what filters are installed in your refrigeratorhow to clean or replace them correctly, and what mistakes users most often make.

What filters are in the refrigerator and where to look for them

Before you start cleaning, you need understand which filters are installed in your model. Their location and type depend on the brand and functionality of the refrigerator. Here are the main types:

• 🔹 Carbon filter —the most common. It absorbs unpleasant odors and is usually located inside the refrigerator compartment (on the back wall, ceiling or in a special compartment). In models Samsung, LG i Indesit it can often be seen in the upper part of the chamber.
• 🦠 Antibacterial filter - contains silver ions or other antiseptic materials. Most often, it is built into a carbon filter or located separately (for example, in Liebert or Beko).
• 💧 Water filter - purifies water for the dispenser and ice maker. Located behind the refrigerator (connected to the water supply) or inside the chamber (in models Whirlpool, Bosch).
• ❄️ No Frost system filter - prevents the formation of ice and mold. Located next to the fan or evaporator (for example, in Atlant or Electrolux).

To determine exactly where the filter is located in your model, look c operating instructions. If it is not at hand, inspect the refrigerator: the filters are usually hidden behind removable panels or have special markings (for example, the inscription Filter or Carbon) information about the filters may be displayed on the refrigerator. display. Samsung Family Hub) filter information can be shown on the display.

When to clean or change filters: signs and timing

Manufacturers indicate recommended periods for replacing filters, but in practice they may vary depending on the intensity of use of the refrigerator. Here are the main signsthat the filter requires attention:

• 👃 A persistent unpleasant odor has appeared in a refrigerator that does not clean even after washing.
• 💦 The water from the dispenser has become cloudy or has an unpleasant aftertaste (for models with water filter).
• ❄️ Ice or mold has appeared on the walls of the chamber (especially relevant for systems No Frost).
• ⚠️ An error appears on the display (for example, Filter Alert in LG or Change Filter in Whirlpool).

General recommendations for timing:

In models with an automated cleaning system (for example, LG InstaView or Samsung Twin Cooling Plus) filters can last longer, but still require periodic monitoring. If you are not sure about the timing, pay attention to the indicators on the body of the refrigerator - many modern devices signal the need for replacement.

⚠️ Attention: If your refrigerator is equipped with electrostatic filter (for example, in some models Midea), it cannot be washed with water - only wipe with a dry cloth or replace.

Step-by-step instructions: how to clean a carbon filter

The carbon filter is the most common, and you can clean it yourself without replacing it:

1. Unplug the refrigerator. This is a mandatory step, even if you don’t. you will disassemble the electrical components.
2. Remove the filter. Usually it is secured with latches or screws. In models Indesit i Atlant the filter can be hidden behind a decorative panel on the ceiling of the chamber. flat screwdriver if it cannot be removed by hand.
3. Vacuum the filter. Use a soft brush attachment to remove dust and large particles! Do not use a vacuum cleaner!
4. Rinse under running water. The water temperature should not be higher 40°C. Avoid aggressive detergents - a mild soap solution is enough.
5. Dry the filter. Leave it for a day in a well-ventilated place. Do not dry with a hairdryer or on a radiator —this can damage the carbon filler.
6. Install the filter back. Make sure it fits tightly into place and there are no gaps left.

If the smell does not disappear after cleaning, the filter should be replaced. In some models (for example, Bosch Serie 6), the carbon filter is integrated into the ventilation system and cannot be disassembled - in this case, a complete replacement of the module will be required.

Screwdriver (if the filter is secured with screws)

Vacuum cleaner with brush attachment

Soft sponge

Soap solution (chlorine-free)

Dry cloth -->

⚠️ Attention: Some carbon filters (for example, in refrigerators Haier) have disposable design and are not intended for cleaning. An attempt to wash them may result in coal dust getting into the chamber.

Cleaning antibacterial filter: nuances and errors

Antibacterial filters are often combined with carbon filters, but require more delicate handling. Their main task is to suppress the growth of bacteria and mold, so when cleaning it is important not to disturb the protective coating.

If the filter is removable:

• 🧼 Rinse it only with cool water (higher temperatures 30°C can destroy the antibacterial layer).
• 🧴 Do not use alcohol, chlorine or other aggressive agents - they neutralize the effect of silver ions.
• ☀️ Dry the filter in the shade, avoiding direct sunlight.

If the filter is non-removable (built into the ventilation system), it can be treated special antiseptic spray for household appliances, for example, a product based on hydrogen peroxide or miramistin. Spray it on the surface of the filter, then wipe with a dry cloth.

In models with photocatalytic filter (for example Panasonic with technology Nanoe) no cleaning is required - just wipe it with a dry cloth once a year. An attempt to wash such a filter with water will lead to its failure.

What to do if the antibacterial filter is covered with mold?

If mold appears on the filter, it is necessary replaceso How to clean it without the risk of spreading spores is impossible. Before installing a new filter, treat the mounting area with a vinegar solution (1:1 with water) and dry thoroughly.

How to replace the water filter in a refrigerator with a dispenser

Water filters in refrigerators with a dispenser or ice maker (Samsung RF28**, LG LRMVC2306, Whirlpool WRF535) require replacement every 6 months. The process is simple, but there are nuances:

1. Turn off the water. Usually the tap is located at the back of the refrigerator. If it is not there, turn off the water supply at the riser.
2. Remove the old filter. In most models, it is located at the bottom of the chamber (behind a special door) or at the back. Turning counterclockwise will release the filter.
3. Install a new filter. Screw it clockwise until it clicks. Models Bosch may need to reset the replacement indicator (hold the button Filter Reset 3 seconds).
4. Rinse the system. Drain the first 2-3 liters of water to remove air and possible coal dust particles.

If after replacement the water flows in jerks or with air, check the tightness of the connections. In refrigerators LG with the system Smart Diagnosis you can run a filter test through a mobile application.

⚠️ Attention: Never use water filters from other brands, even if they look similar. For example, a filter for Samsung is not suitable for Whirlpool —this can lead to leaks or breakage of the dispenser.

Cleaning the No Frost system filter: when and how to do it

The system filter No Frost is responsible for air circulation and preventing icing. It requires cleaning less often - once every 2-3 years, but if the refrigerator begins to cool worse or ice appears on the back wall, it’s time to do maintenance.

Instructions:

1. Defrost the refrigerator. Unplug it and leave the doors open for 12-24 hours. In models with Total No Frost (for example, Liebherr) 6-8 hours are enough.
2. Remove the back panel. It is secured with latches or screws. Be careful - there is a fan and evaporator behind the panel.
3. Clean the filter. It looks like a mesh or porous plate. Wash it with soapy water, then vacuum it.
4. Clean the fan. Remove dust from the blades with a brush or vacuum cleaner. In models Electrolux the fan can be blocked with a special protection - do not remove it unless necessary.
5. Assemble everything back. Make sure that the panel fits tightly, otherwise air circulation will be disrupted.

If after cleaning the refrigerator is still noisy or does not cool, the problem may be frozen evaporator or a faulty sensor. In this case, it is better to call a specialist.

Top 5 mistakes when cleaning refrigerator filters

Even experienced users sometimes make mistakes that can lead to damage to the refrigerator or deterioration in its performance. Here are the most common:

• 🚫 Use of abrasives. Hard brushes or powders scratch the surface of the filter and destroy its structure.
• 🚫 Drying with a hairdryer or on a battery. High temperatures deform the plastic and reduce the effectiveness of the carbon filter.
• 🚫 Installing the wrong filter side. Water filters have marks IN (input) and OUT (output) - if you mix them up, the filter will not work.
• 🚫 Ignoring the replacement indicator. In modern refrigerators (for example, Samsung French Door) the sensor is triggered when the filter has exhausted its resource. Resetting it without replacing the filter will lead to deterioration in water quality.
• 🚫 Cleaning the No Frost filter without defrosting. Ice on the evaporator can damage the filter during dismantling.

More one common mistake is purchase of non-original filters. Cheap analogs may not fit in size or cannot be cleaned, which will lead to damage to the dispenser or cooling system.

FAQ: Frequently asked questions about cleaning filters in the refrigerator

Is it possible not to clean the filter, but just change?

Yes, in most cases, replacing the filter is preferable to cleaning, especially when it comes to water or antibacterial models. However, carbon filters in budget refrigerators (for example Birusa or Stinol) are often designed for reusable use, and cleaning them extends their service life.

How to understand that the No Frost filter is clogged?

Main signs: the refrigerator has become noisier, Ice appeared on the back wall, and the temperature in the chamber increased. An alarm may also sound (on models with display). If after cleaning the problem does not disappear, check the fan and defrost sensor.

How can you replace the original filter if it is not on sale?

For carbon filters, a universal analogue with the same size and type of fastening is suitable (for example, Unifilter). For water filters, it is better to choose a certified replacement from an authorized dealer. The use of homemade filters (for example, with activated carbon from a pharmacy) is not recommended - they do not guarantee safety.

Do you need to clean the filter in a new refrigerator?

No, in new refrigerators the filters are already prepared for use. However, if the refrigerator was stored in a warehouse for a long time (more than 6 months), the carbon filter may have lost its properties - in this case, it is better to replace it before the first use.

Can cleaning the filter eliminate an unpleasant odor if it has already appeared?

Not always. If the odor is persistent, cleaning the filter may not be enough. It is recommended:

1) Wash the refrigerator with a soda solution (1 tablespoon per 1 liter of water).

2) Check the door seals - the smell often comes from there.

3) Place an odor absorber in the chamber (for example, Silane or a bag of soda).