How to Change Air Filter on LG Fridge: A Step-by-Step Guide for Homeowners​

2025-12-05

Keeping your LG refrigerator running efficiently and keeping your food fresh relies on a often-overlooked component: the air filter. Over time, this small but critical part traps dust, odors, and contaminants, gradually losing its effectiveness. If you’ve noticed your fridge smelling less fresh, ice forming unevenly, or the “change filter” light blinking, it’s likely time to replace the air filter. Fortunately, changing an LG fridge air filter is a straightforward task that most homeowners can complete in under 15 minutes—no professional help required. This guide will walk you through every step, from identifying your fridge model to testing the new filter, ensuring you avoid common mistakes and keep your appliance in top shape.

Why Changing Your LG Fridge Air Filter Matters

Before diving into the “how,” let’s clarify why this maintenance task is non-negotiable. LG refrigerators use advanced air filtration systems to:

  • Remove odors: Traps smells from strong foods (think garlic, cheese, or last night’s leftovers) so they don’t linger.

  • Improve air quality: Reduces airborne particles like dust and mold spores, which can affect food safety.

  • Boost efficiency: A clogged filter forces the fridge’s fan to work harder, increasing energy consumption and potentially shortening the compressor’s lifespan.

  • Prevent ice buildup: Clogged filters restrict airflow, leading to uneven cooling and frost accumulation in the freezer.

LG recommends replacing the air filter every 6–12 months, depending on usage. Households that store pungent foods, have pets, or live in dusty areas may need to swap filters more frequently. Ignoring this can lead to spoiled food, higher utility bills, and costly repairs down the line.

Step 1: Identify Your LG Fridge Model and Filter Type

The first hurdle? Figuring out which air filter your LG fridge uses. LG offers dozens of models, and filter designs vary by series. Here’s how to find yours:

Check the User Manual

Your fridge’s original manual (digital or physical) lists the exact filter model number. Search for keywords like “air filter replacement” or “part number” in the index. If you don’t have the manual, LG’s website lets you search by fridge model number (located on a sticker inside the fridge or on the back panel).

Look for a Filter Number on the Old Filter

If you still have the old filter, remove it (we’ll cover removal later) and check for a label. Most LG filters have a part number like “LRAFX2006W” or “ADQ73591701.” This number ensures you buy the correct replacement.

Use LG’s Online Tool

LG’s official website has a “Parts Finder” tool. Enter your fridge’s model number, and it will display compatible filters. This is the most reliable way to avoid buying the wrong part.

Note the Filter Type

LG fridge filters typically fall into two categories:

  • Standard carbon filters: Absorb odors and large particles. Common in older or budget-friendly models.

  • HEPA/advanced filters: Capture smaller particles (down to 0.3 microns) and are found in newer, high-end models like LG InstaView or French door fridges. These often have longer lifespans (up to 12 months).

Step 2: Gather Tools and Prepare Your Workspace

Replacing an LG air filter requires minimal tools—usually just your hands. However, having these items nearby will make the process smoother:

  • Replacement filter: Ensure it matches your model (double-check the part number!).

  • Soft cloth or paper towels: To wipe away dust or condensation.

  • Flashlight: Some filters are in dark, hard-to-reach areas.

  • Gloves (optional): If you’re sensitive to dust or mold on the old filter.

Before starting, unplug the fridge or turn off the ice maker/water dispenser (if connected to the filter system). While most LG fridges don’t require full power disconnection, powering down prevents accidental water leaks from the dispenser during installation.

Step 3: Locate the Air Filter Compartment

LG fridges have three common filter locations. Identifying yours is key to avoiding frustration:

1. Top-Mounted Filters (Common in Older Models)

Older LG fridges, especially top-freezer models, often have the filter in the ceiling of the fresh food compartment. Look for a small, round or rectangular cover labeled “Air Filter” or “Replace Filter.” It may blend in with the fridge’s interior lining, so run your hand along the top panel to feel for a seam.

2. Bottom-Mounted Filters (French Door or Side-by-Side Models)

Most modern LG French door or side-by-side fridges house the filter in the bottom drawer. Open the crisper drawers (the ones with humidity controls) and look for a filter access panel on the right or left side. Some models have a button or lever to release the panel; others require sliding it out.

3. Door-Mounted Filters (InstaView or Specialty Models)

LG’s InstaView fridges (with the glass panel you knock to see inside) sometimes place the filter behind the crisper drawers or in the upper right corner of the fresh food compartment. Newer “Smart” models may also integrate the filter into the door’s interior lining, near the water dispenser.

Step 4: Remove the Old Filter

Once you’ve located the compartment, removing the old filter is simple:

Twist-and-Pull (Most Common)

Grasp the filter by its base (not the plastic cap) and twist it counterclockwise (to the left). It should unscrew easily. Pull it straight out—don’t force it if it’s stuck; a gentle wiggle usually does the trick.

Slide-and-Release

Some filters slide into the compartment horizontally. Push the filter in slightly (to release a locking tab) and pull it out toward you.

Lift-Out Panel

If the filter is behind a cover, press the release tabs on either side of the panel and lift it out. The filter will be attached to the back of the panel or sitting inside the cavity.

Pro Tip: As you remove the old filter, note the direction of the airflow arrow (usually printed on the filter). The new filter must be installed with the arrow pointing in the same direction (toward the fridge’s fan).

Step 5: Install the New Filter

With the old filter out, it’s time to install the replacement. Follow these steps to ensure a proper fit:

Inspect the Compartment

Wipe away any dust or debris from the compartment using a soft cloth. Moisture or grime here can reduce the new filter’s effectiveness.

Align the New Filter

Hold the new filter with the airflow arrow pointing toward the fridge’s rear (where the fan is located). Match the filter’s shape to the compartment—most have notches or grooves that guide alignment.

Insert and Secure

Push the filter in until it clicks into place. For twist-style filters, screw it clockwise (to the right) until it’s snug. Don’t overtighten—this can crack the filter housing.

Replace the Cover

If you removed a panel to access the filter, slide or snap it back into place. Ensure all tabs lock to prevent the cover from falling off.

Step 6: Test the Filter and Reset the Indicator Light

After installation, power the fridge back on (if you unplugged it) and run a quick test:

Check for Leaks

Run the water dispenser (if applicable) for 10–15 seconds. A small amount of water may drip as air bubbles clear—this is normal. Wipe up any spills immediately.

Monitor Performance

Over the next few days, notice if odors diminish, ice forms evenly, and the fridge feels cooler. If issues persist, double-check the filter installation or consult the manual.

Reset the “Change Filter” Light

Most LG fridges have a filter indicator light that blinks when replacement is due. To reset it:

  • Press and hold the “Filter Reset” button (often near the ice maker or on the control panel) for 3–5 seconds.

  • If there’s no dedicated button, unplug the fridge for 1 minute, then plug it back in. The light should turn off.

Common Problems and How to Fix Them

Even with careful installation, you might encounter issues. Here’s how to troubleshoot:

The “Change Filter” Light Won’t Turn Off

This usually means the filter isn’t seated correctly. Remove it, check for debris in the compartment, and reinstall, ensuring it clicks into place. If the light still blinks, try resetting it manually.

Reduced Airflow or Poor Cooling

A loose filter or incorrect model can restrict airflow. Verify the filter part number matches your fridge. If it does, check for blockages in the condenser coils (located on the back or bottom of the fridge)—dust here can also cause cooling issues.

Water Leaking from the Dispenser

If leaks occur after filter replacement, the O-ring inside the filter may be damaged. Remove the filter, inspect the O-ring for cracks, and replace it if needed. Some filters come with a new O-ring—install it before inserting the filter.

How to Extend Your Filter’s Lifespan (and Save Money)

While LG recommends 6–12 month replacements, you can maximize your filter’s performance with these tips:

  • Clean the fridge regularly: Wipe spills and remove expired food to reduce odor and particle buildup on the filter.

  • Change filters sooner in high-use households: If you cook daily or store strong-smelling foods, swap filters every 4–6 months.

  • Avoid “universal” filters: Generic filters may not fit or filter as effectively. Stick to LG OEM or certified compatible parts.

Final Thoughts: Why DIY Filter Changes Matter

Changing your LG fridge’s air filter is a small task with big rewards: fresher food, lower energy bills, and a longer-lasting appliance. By following this guide—whether your fridge is a decade-old top-freezer model or a brand-new InstaView—you’ll keep it running smoothly without relying on costly professional service. Remember: when in doubt, consult your user manual or LG’s support team for model-specific advice. With regular maintenance, your LG fridge will continue to be a reliable cornerstone of your kitchen for years to come.

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