How to Replace Air Filter on LG Refrigerator​

2025-11-28

Replacing the air filter in your LG refrigerator is a simple, essential maintenance task that typically takes less than five minutes and requires no special tools. The process involves locating the filter compartment, usually inside the back upper-right section of the refrigerator interior, removing the old filter by twisting it or releasing a tab, and inserting the new filter after removing its protective cover. The key to success is purchasing the correct replacement filter model, which is clearly listed in your refrigerator's manual and on the LG website, corresponding to your specific refrigerator model number. Performing this replacement every six months ensures optimal air quality, eliminates odors, and maintains the efficiency of your refrigerator's air circulation system.

To complete this task successfully, you need to understand the purpose of the filter, gather the correct materials, and follow a straightforward sequence of steps. This guide provides a comprehensive, step-by-step walkthrough to ensure you can replace your LG refrigerator's air filter with confidence and ease.

Understanding Your LG Refrigerator's Air Filter

The air filter in an LG refrigerator is not related to the cooling system itself. Instead, it is a component of the Fresh Air system, designed to improve the environment inside the refrigerator compartment. Its primary job is to circulate air through a charcoal filter to neutralize odors released by stored food. This prevents strong smells from items like onions, cheese, or fish from permeating other foods, thereby keeping everything tasting fresh. Unlike the water filter, which affects the water you drink, the air filter is solely concerned with maintaining air quality. Most LG refrigerators are equipped with an indicator light on the control panel that alerts you when it is time to replace the air filter. This light typically turns on after six months of use, but the actual need can vary depending on how heavily you use the refrigerator and the types of food you store.

Why Regular Replacement is Crucial

Replacing the air filter on schedule is a critical aspect of refrigerator maintenance. A fresh filter works effectively to ​eliminate odors, ensuring that your food retains its intended flavor. An old, saturated filter loses its effectiveness, allowing odors to build up and mix, which can compromise the taste of your food. Furthermore, a clogged filter can restrict air circulation within the refrigerator compartment. While this won't stop the refrigerator from cooling, it can lead to uneven temperatures and force the fan to work harder, potentially affecting long-term energy efficiency. Regular replacement is a small investment that guarantees your refrigerator continues to perform as designed, providing a clean, odor-free environment for your groceries.

Gathering the Necessary Materials

Before you begin, you must have the correct replacement filter. Using the wrong filter will not fit and will not function properly. The most important step is to ​identify your refrigerator's model number. You can find this on a sticker located inside the refrigerator compartment, usually on the side wall, the back wall, or on the door frame. The model number will look something like "LFXS30796S" or "LRFVC3006S". Once you have this number, you can purchase the correct OEM (Original Equipment Manufacturer) air filter from an authorized LG parts dealer, the LG website, or various appliance parts retailers. Using an OEM filter ensures perfect compatibility and performance. The only "tool" you might need is a step stool if the filter compartment is located high up and out of reach. No screwdrivers or other instruments are required for the vast majority of LG models.

Step-by-Step Guide to Replacing the Filter

The following steps provide a universal guide for most LG refrigerator models. Always refer to your owner's manual for any model-specific variations.

Step 1: Locate the Air Filter Compartment
The air filter compartment is almost always located inside the main refrigerator section, not the freezer. Look at the upper-back ceiling of the refrigerator interior. You will see a rectangular plastic cover. This is the filter housing. On some newer models, the filter might be housed in the back wall of the refrigerator compartment, behind a vented grill.

Step 2: Remove the Old Air Filter
The method for removal is straightforward. For filters in the ceiling:

  1. Place your fingers on the sides of the filter cover.
  2. Push the tab or gently squeeze the sides of the cover to release it. The cover will swing down.
  3. You will now see the filter itself. To remove it, you typically need to turn it counterclockwise. There is often an arrow indicating the direction for removal.
  4. Once unlocked, gently pull the old filter straight out from the housing.

For filters located on the back wall, the process is often even simpler. The grill may just clip in place, and the filter pulls straight out.

Step 3: Prepare the New Air Filter
Take your new, genuine LG air filter out of its packaging. You will notice a protective sealing tape or a plastic cover over the charcoal filter material. It is vital that you ​remove this protective cover​ before installation. If you fail to do this, air cannot pass through the filter, rendering it useless. Peel off the tape or plastic cover completely.

Step 4: Install the New Air Filter

  1. Insert the new filter into the compartment in the same orientation as the old one you removed.
  2. If it's a ceiling filter, push it in and then turn it clockwise until it locks into place. You should feel it click or stop turning.
  3. Close the cover by pushing it back up until it snaps securely into position.

Step 5: Reset the Air Filter Indicator Light
After replacing the filter, you must reset the indicator light on your refrigerator's control panel. If you do not do this, the light will remain on, reminding you to change a filter you have already replaced. The reset method is generally simple:

  1. Locate the "Filter Reset" or "Light" button on the control panel. It may be a dedicated button or part of a touch-sensitive display.
  2. Press and hold this button for approximately 3 to 5 seconds.
  3. You will see the indicator light turn off, confirming the reset is complete.

If you cannot find the specific button, consult your owner's manual for the exact reset procedure for your model.

Troubleshooting Common Issues

Sometimes, you may encounter minor issues during the process. If the ​new filter does not fit, double-check that you have the correct model number for both your refrigerator and the filter. An OEM filter for your specific model will always fit correctly. If the filter feels difficult to turn, ensure it is aligned properly; do not force it, as this could damage the housing. If the ​indicator light does not reset, confirm you are holding the correct button for the full duration. If it still does not work, try unplugging the refrigerator for one minute and then plugging it back in before attempting the reset again. This can sometimes clear a minor electronic glitch.

Maintenance Schedule and Tips

LG recommends replacing the air filter every six months. However, this is a general guideline. If you store a lot of pungent foods, you may need to replace it more frequently. A good practice is to make a note on your calendar or set a reminder on your phone for six months from the installation date. Purchasing filters in a two-pack can be more economical and ensures you always have a spare on hand when the indicator light comes on. Keeping up with this simple maintenance task is one of the easiest ways to ensure your LG refrigerator continues to provide a fresh, clean environment for your family's food.