LG LFX28978 Serie Guide D'utilisation page 36

REPLACING THE WATER FILTER
It is recommended that you replace the filter
approximately every 6 months, when the water filter
indicator reaches 0 months, or when the ice and
water dispenser noticeably decreases out-put.
1. Remove the old cartridge.
1 Press the push button to open the filter cover.
NOTE : Replacing the filter causes a small
amount of water (around 1 oz. or 25 cc) to
drain. Place a cup under the filter hole to
catch any waste.
3 Pull out the filter cartridge.
NOTE : When opened at a full angle the
cartridge should easily come out.
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2 Pull the cartridge downward.