LG LRFXS2503S how to replace the Fresh Air Filter
When the air filter icon lights, or about every six months.
You need
- Replacement air filter LT120F
Steps
- Turn the filter cover counterclockwise by pushing down on its upper left corner and up on its lower right corner, then pull the cover forward.
- Take the filter out of the cover by pressing its side in and pulling the center out.
- Set the new filter in the cover with FRONT facing outward and the cover tabs lined up with the hooks on the refrigerator wall.
- Rotate the cover clockwise until it locks.
- Press and hold the Fresh Air Filter button for 3 seconds to reset the filter sensor.
The Fresh Air Filter button also switches between Auto mode (10 minutes on, 110 minutes off) and Power mode (4 hours at 10 minutes on, 5 minutes off, then back to Auto).
Source: Operation: Control Panel (Fresh Air Filter); Maintenance: Air Filter Source: Operation: Control Panel (Fresh Air Filter); Maintenance: Air Filter, pp. 31, 51-52
Used for
- Replace Filter icon (Fresh Air Filter): The Fresh Air Filter is due for replacement, about every six months.
Other LRFXS2503S procedures
- How to set the refrigerator and freezer temperatureTo change the target temperature on a model with a Wi-Fi control panel.
- How to turn off Display Mode (store display)When the display shows OFF and the refrigerator is not cooling.
- How to turn Sabbath mode on or offWhen the display shows sb, or to use the refrigerator on the Sabbath and holidays.
- How to turn the icemaker on or offBefore the water line is connected, before leaving home, or after the icemaker was switched off.
- How to replace the water filterWhen the Replace indicator lights, about every six months, or when dispenser output drops.
- How to level the refrigerator and align the doorsWhen the refrigerator seems unsteady, a door closes poorly, or the doors are uneven.
Sources
- Owner's Manual, French Door Refrigerator LRFXS2503, LFXS26973 and related models. LG Electronics Inc. Document MFL67227321, revision Rev.01, 2026-06-22, 76 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.