Where Your LG Water Filter Sits and How to Access It

Most LG refrigerators have the water filter in one of two places: inside the refrigerator compartment (usually in the upper right corner behind a small panel or grille) or underneath the fridge near the floor on the front or back. Open your refrigerator and look for a cylindrical cartridge about the size of a soda can, or check under the unit for a filter housing. If you cannot find it visually, your model number—printed on a sticker inside the fridge or on the back—will tell you exactly where it is. You can search that model number plus "water filter location" on LG's website or your product manual.

Before you start, turn off the water supply to the refrigerator. Most units have a small shutoff valve behind or underneath the fridge where the water line connects. Turn it clockwise until it stops. If you cannot find a shutoff valve, you can proceed carefully and have towels ready to catch any remaining water in the line.

Key Takeaways

  • LG water filters are located either inside the fridge compartment or underneath the unit, and your model number tells you which one you have.
  • Turn off the water supply before you remove the old filter to prevent water from spraying out.
  • Most filters twist counterclockwise to remove and twist clockwise to install—hand-tight is all you need.
  • After installation, run water through the dispenser for 3 to 5 minutes to flush the new filter before drinking.
  • LG filters typically last 6 months under normal use, and your refrigerator will alert you when replacement is due.

Removing the Old Filter

If your filter is inside the fridge, locate the small panel or grille covering it and twist it counterclockwise by hand until it comes free. Some models have a release button on the side of the filter housing—press it and the cartridge will pop out slightly so you can grip and pull it straight out. Have a towel ready; there will be a small amount of water in the line.

If your filter is underneath the fridge, you may need to get down on your back or knees to see it clearly. Use a flashlight if the space is dark. Grip the filter housing and twist counterclockwise. Again, water may drip, so place a towel or shallow pan underneath before you start turning.

Installing the New Filter

Before you open the new filter box, check that you have the correct LG model for your refrigerator. The filter number should match what was on the old one or in your manual. Remove the new filter from its packaging and remove any plastic caps or seals on the inlet and outlet ports (the small openings where water enters and exits the filter).

Insert the new filter into the housing and twist it clockwise by hand until it stops. Do not use a wrench or pliers—hand-tight is the correct tension. If the filter does not turn smoothly, you may have it slightly misaligned; remove it, line it up straight, and try again. Once it is seated, turn the water supply back on by turning the shutoff valve counterclockwise.

Flushing the New Filter

After you turn the water back on, run water through the dispenser for 3 to 5 minutes without stopping. This flushes air and loose carbon particles out of the new filter. The water may look slightly cloudy or gray at first—this is normal and will clear. Do not drink the water during this flushing period.

If you have an ice maker, it will also begin filling with water during this time. Let it run through one or two cycles and discard the first batch of ice cubes. After flushing is complete, your water and ice should taste and look normal.

Resetting the Filter Alert Light

Most LG refrigerators have a filter status light on the control panel or inside the fridge. After you install the new filter, this light may still show red or display a "replace filter" message. You need to reset it manually so the refrigerator knows a fresh filter is in place.

The reset method varies by model. On many units, you hold down a button labeled "Filter Reset" or "Water Filter" for 3 to 5 seconds until the light turns blue or green or the message clears. Some models require you to press a specific sequence of buttons on the touchscreen. Check your manual or search your model number plus "reset filter light" to find the exact steps for your fridge. If you cannot locate the reset button, the light will eventually turn off on its own after several weeks of use, but resetting it now gives you an accurate countdown to your next replacement.

Choosing the Right Replacement Filter

LG makes several filter models, and using the wrong one can result in poor water quality or a filter that does not fit. The safest option is to buy a filter with your refrigerator's model number printed on it. You can find genuine LG filters through the manufacturer's website, major appliance retailers, and online marketplaces.

Third-party filters certified to NSF/ANSI Standard 42 or 53 will also work in most LG refrigerators and are often less expensive than OEM (original equipment manufacturer) filters. Check the product listing to confirm it is compatible with your specific model before you buy. If you are unsure, call LG customer service with your model number and they will tell you exactly which filter you need.

When to Replace Your Filter

LG recommends replacing the water filter every 6 months under normal household use. If you have a large family, use the ice maker frequently, or have hard water in your area, you may need to replace it sooner. The filter alert light will turn red or display a message when the filter is due for replacement—this is your signal to order a new one and schedule the swap.

If you notice the water pressure from the dispenser dropping, the water tastes off, or ice cubes look cloudy or discolored, the filter may be clogged even if the alert light has not come on yet. In those cases, replace it when ready rather than waiting for the scheduled time.

Frequently Asked Questions

What do I do if water sprays out when I remove the old filter?

This happens when the water supply was not fully shut off or when you twist the filter too quickly. Stop when ready, turn off the water supply valve, and let the line depressurize for a minute. Place towels under the filter housing and try again more slowly. A small amount of dripping is normal; a spray means the valve is still open.

Can I use a third-party filter instead of an LG filter?

Yes, as long as it is certified to NSF/ANSI Standard 42 or 53 and is listed as compatible with your model number. Third-party filters work the same way and cost less, but confirm compatibility before you buy. Avoid very cheap filters with no certification, as they may not filter effectively.

How do I know if I have the right filter for my model?

Check the model number on your refrigerator (usually on a sticker inside the fridge or on the back) and search it on LG's website or in your manual. The manual will list the correct filter part number. You can also call LG customer service with your model number and they will tell you which filter you need.

What if the new filter will not turn clockwise to tighten?

The filter may be misaligned with the housing. Remove it completely, look at the inlet and outlet ports on both the filter and the housing, and make sure they line up straight. Reinsert the filter and turn it slowly. It should turn smoothly without resistance. If it still will not turn, the filter or housing may be damaged—contact LG support.

Do I have to reset the filter light after installation?

You should reset it so the refrigerator gives you an accurate countdown to the next replacement. The reset method depends on your model—check your manual or search your model number plus "reset filter light." If you do not reset it, the light will eventually turn off on its own, but you will lose track of when the filter actually needs replacing.