How to Replace LG Refrigerator Air Filter: A Complete Step-by-Step Guide for Homeowners
Replacing the air filter in your LG refrigerator is a simple but essential task that ensures fresh, clean air inside your fridge and better food preservation. You do not need special tools or professional help—just a few minutes of your time every six months, or as recommended by your model’s manual. This guide explains how to locate the filter, remove the old one, install a new one correctly, and maintain optimal performance. Doing this regularly helps reduce odors, removes airborne particles, and keeps your appliance running efficiently.
Why Replacing Your LG Refrigerator Air Filter Matters
The air filter in an LG refrigerator plays a key role in maintaining air quality inside the unit. It traps dust, allergens, bacteria, and odor-causing molecules. Over time, the filter becomes saturated and loses its effectiveness. If unchanged, it can lead to unpleasant smells, reduced cooling efficiency, and possible strain on the fridge's components. Changing the air filter at proper intervals supports hygiene, extends the life of your refrigerator, and contributes to energy savings.
LG recommends replacing the air filter approximately every six months with average use. However, if your home has pets, smokers, or high humidity, more frequent changes may be needed. The process is straightforward, but knowing the correct steps avoids mistakes and damage to the unit.
Understanding the Type of LG Refrigerator Air Filter
LG uses different kinds of air filters across its models. Most common is the Fresh Air Filter, which slides into a compartment either in the back wall of the refrigerator section or behind the crispers in the fresh food area. Some newer models include combination water and air filtration systems, while others have separate units.
To identify the right replacement, check your user manual or look for the model number printed inside the fridge. LG air filters are labeled with part numbers such as LT120F, LT1000P (for some combined systems), or ADQ73214404. Using the manufacturer-approved filter guarantees proper fit and function.
Tools and Materials Needed
You will not require any tools for most LG refrigerator models when replacing the air filter. The only item you must have is a compatible new filter. It is helpful to have a clean cloth or small vacuum to clean the filter housing area before installing the new filter. Working in a well-lit area makes it easier to see the filter cover and locking tabs.
Before starting, ensure you have the correct replacement part. Buying from authorized sellers or directly from LG ensures authenticity and reliability. Keep the packaging of the new filter until installation is complete; it sometimes contains important handling instructions or expiration dates.
Identifying the Location of the Air Filter
The position of the air filter varies by refrigerator style and model. In French door models, the filter is often located in the upper right corner of the interior back wall or inside the ceiling panel. In side-by-side models, it might be found near the top of the fresh food section or behind a small grille. Some models hide the filter behind the vegetable drawers.
If you are unsure where to find it, consult the user manual. Many manuals include diagrams showing the exact placement. Another option is to search online using your refrigerator’s model number along with “air filter location.”
Once you open the refrigerator doors, look for a rectangular or square plastic grille marked with an icon of an air filter or the word "Filter." Some models have indicator lights on the control panel that remind you when it is time to change the filter.
Preparing for Replacement
Do not pull out the old filter immediately upon opening the compartment. First, take a moment to observe how it sits and the direction of airflow arrows printed on the filter body. These arrows show how the air moves through the filter and must face the correct way during installation. Noting this prevents installing the new filter backward.
It is also wise to photograph the setup before removal. This gives you a visual reference to follow during installation. Make sure the refrigerator is plugged in and running so that you can test operation after changing the filter.
Have a trash bag or container ready to collect the used filter. Although it does not contain hazardous waste, it may hold dust and debris that you do not want to spread in your kitchen.
Removing the Old LG Refrigerator Air Filter
To remove the old filter, grip it firmly and push in slightly toward the slot. Then rotate or pull down depending on the model. Some filters turn counterclockwise before pulling straight out. Others simply slide out after releasing a latch or tab.
If the filter feels stuck, do not force it. Check whether there is a locking mechanism or clip holding it in place. Referring to the diagram in your manual can clarify the release method. Once loose, gently pull the filter outward, keeping it level to avoid spilling trapped particles.
After removal, inspect the filter. A heavily discolored or clogged filter shows why regular changes matter. Clean the cavity around the slot with a dry cloth or soft brush. Avoid using water unless the manual specifies it is safe. Any moisture left inside can encourage mold growth.
Installing the New LG Refrigerator Air Filter
Take the new filter out of its packaging carefully. Do not touch the pleated filtering material with bare fingers. Hold it by the edges or frame to prevent clogging from skin oils or dirt. Check for the airflow direction arrow and align it with the markings inside the compartment.
Insert the filter into the slot gently. If your model requires rotation, turn it clockwise until it locks. For slide-in types, push it fully until you hear a click or feel resistance. Ensure it sits flush and even without gaps around the edges. An improperly seated filter reduces efficiency and may allow unfiltered air to pass.
Close the filter cover or grille securely. Some covers snap shut, while others twist or slide into place. Make sure all clips engage and seals are tight. If the cover resists closing, double-check alignment of the filter.
Resetting the Filter Indicator Light
Many LG refrigerators feature a control panel light or display message that signals when the air filter needs replacement. After installing a new filter, this reminder must be reset so it can track the next replacement period.
Reset methods vary. On some models, press and hold the “Filter” or “Alarm” button for three to five seconds until the light goes off. Other models require navigating through menu settings using the refrigerator’s touchpad. If unsure, refer to the owner’s manual for exact steps.
Failure to reset the indicator means you could receive unnecessary reminders or miss future alerts. Keeping track manually is less reliable than using the built-in system.
Testing After Installation
Once the new filter is in place and the indicator reset, give the refrigerator a few minutes to circulate air. Listen for normal fan sounds. There should be no unusual noises or vibrations. Smell the interior to detect any lingering odors; a clean filter often noticeably improves air freshness within hours.
Check that the temperature settings remain stable. A properly working filter does not affect cooling performance, but an incorrect installation might disrupt airflow. If the fridge seems warmer than usual, recheck the filter seating and compartment seal.
Run the appliance for at least 24 hours and monitor food freshness. If odors persist, verify that the filter is genuine and correctly installed, and examine other potential causes such as spoiled food items or dirty condenser coils.
How Often to Replace the Air Filter
Most LG refrigerators require air filter replacement every six months under standard conditions. However, usage patterns affect frequency. Homes with heavy cooking, pets, or allergy sufferers may need new filters every three to four months. Infrequent use may extend the interval up to nine months.
Some models display a countdown timer based on estimated use. Others rely on manual tracking. Keeping a calendar reminder helps maintain consistency. Maintaining a supply of extra filters ensures you are never caught without one.
Buying filters in multi-packs can lower cost and ensure you always have a spare. Store unused filters in a cool, dry place away from direct sunlight. Filters have expiration dates; using an expired filter lowers effectiveness.
Choosing the Right Replacement Filter
Using the correct filter model is critical. LG designs filters specifically for each series to match airflow rates and coverage area. Third-party filters may fit physically but often lack certified filtration media, reducing protection against contaminants.
When selecting a replacement, match the part number exactly. If unavailable, confirm compatibility with your specific refrigerator model via LG’s website or customer service. Look for filters that meet NSF or similar standards for air quality assurance.
Avoid generic brands that make unverified claims. Poor-quality filters may deteriorate faster, shed particles into the air, or fail to trap odors effectively. Investing in genuine LG filters protects your appliance and health.
Troubleshooting Common Issues During Replacement
Sometimes, the filter compartment is hard to access due to misaligned drawers or shelves. Remove any obstruction carefully following your manual’s directions. If the filter grille refuses to close, check for debris or improper insertion. Filters inserted backward can cause poor sealing and ineffective filtration.
If the indicator light stays on after replacement and reset attempts, disconnect the refrigerator power for a minute and reconnect. This can clear electronic glitches. Persistent issues may indicate a faulty control board requiring technician inspection.
Unusual noises after installation can point to a loose filter rattling inside the slot. Remove and reseat the filter, ensuring it locks or seats fully. If vibrations continue, contact LG support for guidance.
Maintenance Beyond Filter Replacement
While replacing the air filter is vital, overall refrigerator maintenance enhances results. Regularly clean interior surfaces with mild detergent. Empty and wash crisper drawers monthly. Vacuum condenser coils every six months to improve cooling efficiency.
Inspect door gaskets for cracks or looseness. Damaged seals let warm air enter, making the appliance work harder. Wipe spills promptly to prevent odor buildup that burdens the air filter.
Keep ventilation spaces around the fridge clear. Blocked vents restrict airflow, making the filter less effective. Following these routines prolongs freshness and reduces strain on the compressor.
Environmental and Health Benefits of Regular Replacement
Clean air inside the refrigerator influences more than just food taste. It reduces exposure to airborne irritants that can trigger allergies or asthma attacks. Families with young children benefit from minimized microbial presence in stored food areas.
Regular filter changes also mean less frequent deep cleaning of the fridge interior. Odors are captured before they spread, making the environment more pleasant. Efficient airflow reduces energy consumption, lowering electricity bills and environmental impact.
Proper disposal of used filters—by placing them in sealed bags before trashing—prevents redistribution of trapped particles into indoor air. Responsible maintenance aligns with sustainable living practices.
Frequently Asked Questions About Replacing LG Refrigerator Air Filter
Can I wash and reuse my LG air filter?
No. LG air filters are not designed for washing. Cleaning destroys their structure and filtration ability. Always replace with a new filter.
What happens if I do not replace the filter?
Over time, the filter clogs and loses effectiveness. Odors build up, air circulation suffers, and the fridge works harder, shortening lifespan and raising energy costs.
Do all LG refrigerators have air filters?
Not all models include air filters. Some older or basic versions lack this feature. Check your model specifications.
How do I know which filter part number I need?
Look inside the fridge for the label with model and serial numbers. Use these to search LG’s official parts list or consult your manual.
Is it difficult to replace the filter myself?
No. The process is simple and intended for homeowners to perform without special skills or tools.
Conclusion
Replacing the air filter in your LG refrigerator is a quick and necessary task that anyone can do. By understanding the importance of the filter, locating it correctly, removing the old unit carefully, and installing the new one properly, you ensure fresher food storage and cleaner air. Regular changes, combined with basic maintenance, keep your refrigerator performing reliably while protecting your household’s health. With the steps outlined here, you can confidently handle this routine job and enjoy the full benefits of your LG appliance.