How to Change Your LG Refrigerator Air Filter: A Comprehensive, Step-by-Step Guide for Homeowners​

• If you own an LG refrigerator, regularly changing the air filter is one of the simplest yet most critical maintenance tasks to keep your appliance running efficiently, preserving food freshness, and preventing unpleasant odors. Over time, the air filter traps dust, debris, and airborne particles, becoming clogged and less effective. In this guide, we’ll walk you through why replacing the filter matters, how to recognize when it’s time, and a detailed, easy-to-follow process to swap it out—no professional help required. By the end, you’ll feel confident maintaining your LG fridge and ensuring it performs at its best for years.

  Why Changing Your LG Refrigerator Air Filter Matters More Than You Think

  The air filter in your LG refrigerator isn’t just a minor component; it’s a workhorse that impacts three key areas of your appliance’s performance:

  1. ​Food Freshness and Odor Control​

  Your fridge’s air filter, often a activated carbon filter, works like a sponge for unwanted smells and airborne contaminants. As cold air circulates through the fridge, the filter traps mold spores, pet dander, cooking odors, and volatile organic compounds (VOCs) that could taint your food. A clogged filter can’t capture these particles effectively, leading to stale or “fridge smell” that seeps into fruits, vegetables, and leftovers. Over weeks, this can even shorten the shelf life of your groceries.

  2. ​Energy Efficiency and Cost Savings​

  A dirty air filter forces your refrigerator’s compressor to work harder. When airflow is restricted, the fridge struggles to maintain consistent cold temperatures, leading to increased energy consumption. LG estimates that a clogged filter can raise your fridge’s energy use by 10–15% annually—an extra $20–$50 on your utility bill, depending on local rates. Replacing the filter restores proper airflow, letting your fridge run smoothly and save you money.

  3. ​Preventing Bacteria and Mold Growth​

  Trapped moisture and organic matter in a saturated filter create a breeding ground for bacteria and mold. These microorganisms don’t just affect air quality—they can circulate back into your fridge, contaminating surfaces and food. For households with infants, elderly family members, or anyone with allergies, a fresh filter is a small but vital step in maintaining a healthy kitchen environment.

  How to Know When It’s Time to Replace Your LG Fridge Air Filter

  LG designed its air filters to last 6–12 months under normal use, but several signs may indicate yours needs changing sooner:

  1. ​Time-Based Replacement (Most Common)​​

  Check your fridge’s manual or the manufacturer’s website for your specific model’s recommendation. Most LG fridges (like the popular LT1000P, LT1200P, and LRFXC2416S models) suggest replacing the filter every 6 months if used daily. If you open the fridge frequently, store strong-smelling foods (like cheese or fish), or live in a dusty area, aim for every 4–6 months.

  2. ​The Fridge’s Built-In Indicator Light​

  Many newer LG models have a “Filter” or “Change Filter” light on the control panel. When the filter is nearing the end of its life, this light will turn amber or blink. Once it’s red or stays on, it’s time to replace it. Note: Some older models lack this feature, so rely on the time-based schedule or other signs.

  3. ​Unusual Odors or Poor Cooling​

  If your fridge suddenly smells musty or your food is spoiling faster than usual, a clogged filter could be the culprit. Similarly, if the fridge feels warmer than normal or the freezer isn’t freezing solid, reduced airflow from a dirty filter might be impairing cooling performance.

  4. ​Visible Dirt or Moisture on the Filter​

  Pull out the old filter (we’ll cover how in the next section) and inspect it. If it’s covered in dust, grime, or condensation, it’s no longer trapping particles effectively—even if it hasn’t hit the 6-month mark.

  Tools and Materials You’ll Need to Replace the Filter

  Before starting, gather these items to ensure a smooth process:

• ​Replacement LG Air Filter:​​ Match your model number (found on the old filter or fridge sticker) to ensure compatibility. LG filters are labeled with codes like ADQ73595701, ADQ36937301, or similar—use the manual or LG’s online filter finder tool to confirm. Avoid generic filters; they may not fit or filter as effectively.

• ​Clean Towel or Paper Towels:​​ To wipe up any condensation or spills.

• ​Flashlight (Optional):​​ If the filter is in a hard-to-reach spot (e.g., inside a bottom drawer or behind a panel).

• ​Screwdriver (Rarely Needed):​​ Some older models have screw-on panels; check your manual first.

Step-by-Step Guide: Replacing Your LG Refrigerator Air Filter

Every LG fridge is slightly different, but most follow this general process. We’ll break it down by filter location, as placement varies by model.

​Step 1: Locate the Air Filter​

LG refrigerators typically house the air filter in one of three places:

• ​Top-Mounted (Common in French Door Models):​​ Look inside the top of the refrigerator compartment, near the back wall. It’s often behind a small, rectangular panel labeled “Air Filter” or “Water Filter.”

• ​Bottom-Mounted (Found in Some Side-by-Side or Top-Freezer Models):​​ Check inside a drawer at the bottom of the fridge, near the crisper bins. You may need to pull out the drawer to access the filter slot.

• ​Side-Mounted (Less Common):​​ In some compact or counter-depth models, the filter might be on the left or right interior wall, hidden behind a door or panel.

Pro Tip:If you can’t find it, consult your fridge’s manual or search “[Your LG Model Number] air filter location” online—LG’s support site has detailed diagrams for most models.

​Step 2: Prepare the Area​

Wipe down the area around the filter with a towel to catch any loose dust. If the filter is in a panel, gently press the release tabs or unscrew any fasteners to open it. Set the panel aside—you’ll need to reattach it later.

​Step 3: Remove the Old Filter​

Grasp the old filter firmly and pull straight out. Most LG filters have a push-and-twist or slide-lock mechanism; if it’s stuck, wiggle it gently rather than yanking. Note the direction the filter was facing—there’s usually an arrow indicating airflow (from the fridge interior to the filter). You’ll install the new one in the same orientation.

​Step 4: Prepare the New Filter​

Remove the packaging from the new filter. Some filters come with a protective cover over the inlet; peel this off before installation. Do not remove the outlet cover (if present)—this stays on to direct filtered air back into the fridge.

​Step 5: Install the New Filter​

Align the new filter with the slot, ensuring the airflow arrow points in the correct direction (toward the back of the fridge). Push the filter in until it clicks into place. If it’s a twist-lock model, rotate it until it’s secure.

​Step 6: Reassemble and Reset the Indicator Light​

Close the panel or drawer, then snap or screw it back into place. Next, reset the “Change Filter” light:

• ​For Touchpad Controls:​​ Press and hold the “Filter” or “Options” button for 3–5 seconds until the light turns off.

• ​For Dial Controls:​​ Locate the “Filter Reset” option in the settings menu and select it.

Note: If the light doesn’t reset, double-check the filter is fully seated—sometimes a loose connection prevents the reset.

After Replacement: Testing and Troubleshooting

Once the new filter is in place, let your fridge run for 24–48 hours to stabilize. Here’s what to check:

• ​No Leaks:​​ Inspect the area around the filter for drips—rare, but possible if the seal wasn’t tight. Wipe dry and ensure the filter is fully inserted.

• ​Indicator Light Off:​​ Confirm the “Change Filter” light is off. If it’s still on, recheck the installation or consult the manual.

• ​Improved Air Quality:​​ Over the next few days, notice if odors diminish and food stays fresher longer. If not, the filter may be defective—contact LG support for a replacement.

Common Questions About LG Fridge Air Filters, Answered

Q: Can I clean my old filter instead of replacing it?

A: No. LG air filters use activated carbon, which can’t be washed or reused. Cleaning may remove surface dust but won’t restore the carbon’s ability to trap odors and particles. Always use a fresh filter.

Q: What if I buy the wrong model number?

A: Filters are model-specific. Using the wrong size or type could lead to poor fit, reduced filtration, or even damage to the fridge’s air circulation system. Double-check your model number (on the old filter or fridge) before purchasing.

Q: My fridge doesn’t have a filter—what now?

A: Some older or basic LG models lack an air filter. In these cases, focus on regular fridge cleaning: wipe spills immediately, store strong-smelling foods in airtight containers, and use baking soda to absorb odors.

Q: The “Change Filter” light won’t turn off after replacement.

A: First, ensure the filter is fully seated. If it is, try resetting the light again—some models require holding the button longer. If the issue persists, the control board may be faulty; contact LG’s customer service for assistance.

Long-Term Maintenance Tips to Keep Your Fridge Running Smoothly

• ​Mark Your Calendar:​​ Note the replacement date on your phone or fridge with a sticky note. This prevents forgetting the 6-month schedule.

• ​Inspect the Filter Monthly:​​ Even if you don’t change it monthly, pop it out and check for excessive dirt. Early detection can help you adjust your replacement frequency.

• ​Clean the Fridge Interior Regularly:​​ Wipe shelves, drawers, and walls with a mild detergent solution to reduce airborne particles that clog the filter.

• ​Replace Water Filters Too:​​ If your LG fridge has a water dispenser, replace the water filter every 6 months as well—clogged water filters can affect ice and water quality, and some models share airflow pathways with the air filter.

Final Thoughts: Protect Your Fridge, Protect Your Food

Changing your LG refrigerator’s air filter is a quick, low-cost task with outsized benefits: fresher food, lower energy bills, and a healthier kitchen. By following this guide—whether you’re a first-time DIYer or a seasoned homeowner—you’ll take control of your appliance’s maintenance and ensure it continues to serve you well for years. Don’t wait until you notice odors or poor cooling; set a reminder today and make filter replacement part of your routine. Your fridge (and your groceries) will thank you.