How to Change the Air Filter in an LG Refrigerator: A Complete Step-by-Step Guide

2025-12-04

Changing the air filter in your LG refrigerator is a simple task that can greatly improve cooling efficiency, food freshness, and overall appliance performance. If you ignore this maintenance step, odors may build up inside the fridge, airflow can become restricted, and energy use might rise. The good news is that with just a few basic tools and a few minutes of your time, you can replace the air filter yourself without needing professional help. This guide will walk you through every detail so you can do it correctly and safely.

Regular replacement of the air filter helps maintain clean air circulation within the refrigerator. It removes airborne particles such as dust, pet dander, and other contaminants that may affect food quality and cause unpleasant smells. LG recommends changing the air filter at regular intervals, often every six months, depending on usage and environmental conditions. Following this routine ensures that your refrigerator keeps food fresher for longer and operates at its best.

In this article, we explain how to identify the correct filter type for your model, prepare your workspace, remove the old filter, install the new one properly, and reset the filter indicator if your refrigerator has one. We also cover common issues people face during the process, tips for buying genuine filters, and advice on when and why you should consider more frequent replacements. Whether you are doing this for the first time or want to make sure you are following the best practice, you will find all the necessary information here.

Why Changing the Air Filter in Your LG Refrigerator Matters

The air filter in an LG refrigerator works quietly but plays a major role in keeping the interior smelling clean and the air free from microscopic pollutants. When air moves through the refrigerator, it passes through this filter before recirculating. Over time, the filter collects dust, allergens, mold spores, and other particles brought in whenever the door opens. A clogged filter cannot trap these elements effectively. As a result, food may pick up strange odors and spoil faster.

Poor air quality inside the refrigerator also forces the cooling system to work harder to maintain temperature settings. This extra effort leads to higher electricity consumption and unnecessary wear on internal components. In homes with pets or smokers, the need to change the filter becomes even more important because contaminants enter the fridge more frequently. Keeping the air filter clean and fresh supports better preservation of fruits, vegetables, dairy products, and meats.

A blocked filter may also interfere with the operation of the cooling fans. Some models have sensors that detect airflow changes and may trigger warnings or error codes. Replacing the filter restores normal airflow and prevents such problems. Clean air circulation also helps maintain consistent temperatures in different compartments, which is essential for sensitive items like fresh seafood or prepared meals.

Understanding the Location of the Air Filter in LG Refrigerats

LG places the air filter in easy-to-reach spots in most refrigerator models, but the exact location can vary slightly between designs. In many side-by-side and French door models, the air filter is found in the upper back area of the fresh food compartment, behind a small grille or panel. On some models, especially those with top freezer configurations, the filter may be located near the ceiling or along one side wall.

To locate the filter, open the refrigerator door fully and look for a rectangular or square vented cover. This cover often has a label or icon indicating “Air Filter.” In certain models, the filter housing is part of the control assembly or mounted near the water filter. Checking the user manual is the surest way to confirm placement, but most newer LG refrigerators include clear markings on the filter itself and nearby surfaces.

Some LG units combine the air filter with an odor absorber cartridge. These types snap into place and are replaced as a single unit. Others use a cylindrical or flat panel design that slides in and out of a slot. Knowing which style your refrigerator uses helps avoid confusion when removing the old filter and preparing for the new one.

Identifying the Right Replacement Filter for Your Model

LG manufactures several types of air filters, and using the correct one for your refrigerator model is critical. An incompatible filter may not fit securely or function properly. The easiest way to ensure you get the right part is by checking the model number of your refrigerator. This number is usually printed on a label inside the fresh food section or on the wall near the crisper drawers.

Once you have the model number, look for the corresponding air filter part number in LG’s official documentation or on authorized retail sites. Genuine LG filters are designed to match the airflow requirements and filtration standards of each refrigerator. Using third-party filters can sometimes reduce effectiveness or cause installation issues.

Common LG air filter part numbers include LT120F for many French door models and similar variants for other series. Some filters come with an automatic reminder system that tracks usage time, while others require manual tracking. When purchasing a replacement, check whether it includes instructions or indicators for resetting the filter change alert. Buying from reputable sellers reduces the risk of receiving counterfeit products that may fail quickly.

Tools and Materials You Will Need

Replacing the air filter in an LG refrigerator requires minimal tools. In most cases, no special equipment is necessary. You will need the following:

A new, compatible LG air filter for your specific refrigerator model
A clean, dry cloth or paper towel
Optional: gloves to keep hands clean and avoid contact with dust on the old filter
Optional: flashlight if lighting inside the fridge is poor

Make sure the refrigerator is plugged in and running normally before starting. There is no need to unplug the unit unless advised in rare cases where electrical safety is a concern. Having everything ready before opening the filter compartment saves time and prevents interruptions.

Step-by-Step Instructions for Removing the Old Air Filter

Open the refrigerator door fully and locate the air filter cover. This is typically a plastic panel held by clips or screws.
Remove the cover by gently pulling it away from the mounting tabs. If it is screwed in, use a suitable screwdriver to loosen the screws and set them aside.
Take note of the filter orientation. Look for arrows or locking tabs that show how the filter fits into the housing. This helps ensure the new filter installs in the same direction.
Pull the old filter straight out of its slot. Some filters slide easily, while others may require a slight twist or squeeze of release levers.
Inspect the empty filter housing for dust or debris. Use a dry cloth to wipe away any buildup. Do not use water or cleaning sprays inside the housing, as moisture can damage electronic parts nearby.
Check the condition of the removed filter. If it appears heavily soiled or discolored, this confirms the need for replacement.

Handle the used filter carefully. It may contain trapped particles that could spread if shaken or dropped. Place it in a sealed bag for disposal.

Installing the New LG Air Filter Correctly

Unwrap the new filter and remove any protective packaging. Avoid touching the filtering media with bare fingers when possible.
Align the new filter according to the directional markers from the old one. Match any grooves or tabs in the housing with corresponding features on the filter.
Slide or press the filter into place until it locks securely. You should feel or hear a click if the design includes a locking mechanism.
Replace the cover panel and secure it with clips or screws. Make sure it sits flush against the surrounding surface to maintain proper sealing.
Run the refrigerator for a few minutes and listen for normal fan sounds. If the filter vibrates or feels loose, remove and reinstall it to ensure correct seating.

Proper installation guarantees that air passes through the filter rather than around it, preserving filtration efficiency.

Resetting the Filter Indicator Light

Many LG refrigerators have a filter change reminder light on the control panel. After installing a new filter, this indicator must be reset so it can track the next replacement period.

The reset method varies by model. Common steps include:

Pressing and holding the “Filter” or “Alarm” button for three to five seconds until the light turns off or changes color.
Navigating the control panel menus on models with digital displays to find the filter reset option.
Referring to the user manual for model-specific instructions if the above methods do not apply.

If the light remains on after several attempts, double-check that the filter is installed correctly and that you followed the reset procedure exactly. Sometimes disconnecting power to the refrigerator for a minute and reconnecting it can help clear minor glitches.

How Often Should You Replace the LG Refrigerator Air Filter?

LG generally suggests replacing the air filter every six months under average use. However, frequency depends on factors such as:

How often the refrigerator doors are opened
Presence of pets or smokers in the home
Cooking habits that introduce strong odors
Environmental dust levels in your area

In households with high contaminant exposure, changing the filter every three to four months is wise. Some filters include a usage tracker that counts days and signals when it is time for replacement. Even if the indicator does not activate, periodic visual inspection can reveal if the filter looks dirty or clogged sooner than expected.

Delaying replacement beyond the recommended interval reduces air quality benefits and can lead to increased energy consumption.

Tips for Buying Genuine LG Air Filters

Purchasing authentic LG filters protects your refrigerator’s performance and avoids compatibility issues. Here are practical tips:

Buy directly from LG’s official website or authorized dealers.
Verify the seller’s reputation and customer reviews.
Check that the packaging shows the LG logo and matching part number.
Avoid suspiciously low prices that suggest counterfeit goods.
Register your filter purchase if the manufacturer offers extended tracking or warranty services.

Genuine filters undergo strict quality testing and meet safety standards required for refrigeration systems.

Troubleshooting Common Issues During Replacement

Occasionally, homeowners encounter difficulties while changing the air filter. Typical problems include:

Filter stuck in housing: Apply gentle pressure and wiggle slightly while pulling. Forcing it can break the housing.
New filter does not fit: Confirm you have the correct part number for your model. Slight variations in dimensions exist between series.
Indicator light stays on after reset: Ensure the filter is seated fully and try the reset process again. Consult the manual for alternate reset methods.
Unusual noises after installation: Check for loose panels or improper alignment that may vibrate with fan movement.

If problems persist, contacting LG customer support or a certified technician is recommended.

Maintaining Overall Refrigerator Air Quality

Beyond changing the air filter, other actions help sustain clean air inside your LG refrigerator:

Wipe spills promptly to prevent odor-causing residue.
Store strong-smelling foods in sealed containers.
Keep the refrigerator well organized so air circulates freely around items.
Clean the interior regularly, including walls, shelves, and drawers.
Check door seals for cracks or gaps that let outside air in.

These habits complement filter replacement and contribute to a healthier storage environment.

Conclusion

Learning how to change the air filter in an LG refrigerator is a straightforward process that pays off in better food preservation, cleaner air, and efficient appliance operation. By understanding where the filter is located, choosing the correct replacement, and following proper removal and installation steps, you can complete the task confidently. Regular maintenance, combined with attention to usage patterns, ensures your refrigerator continues to perform at its highest level. Making filter changes part of your routine household care protects both your groceries and your appliance investment over the long term.

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