34 MAINTENANCE
Water Filter
Before Replacing the Water Filter
WARNING
• To reduce the risk associated with choking, do
not allow children under 3 years of age to have
access to small parts during the installation of
this product.
• To reduce the risk associated with the ingestion
of contaminants, do not use with water that is
microbiologicallyunsafe or of unknown quality
without adequate disinfection before or after the
system. Systems certified for cyst reduction may
be used on disinfected water that may contain
filterable cysts. EPA Establishment # 070595-
MEX-001
• Use of unauthorized water filters may result in
product malfunction, water leakage or water
quality issues, which will not be covered under
the product warranty.
CAUTION
• Read and follow Use Instructions before
installation and use of this system.
• Installation and use MUST comply with all state
and local plumbing codes.
• Do not install if water pressure exceeds 120 psi
(827 kPa). If your water pressure exceeds 80 psi,
you must install a pressure limiting valve.
Contact a plumber if uncertain how to check
your water pressure.
• Do not install where water hammer conditions
may occur. If water hammer conditions exist you
must install a water hammer arrester. Contact a
plumbing professional if you are uncertain how
to check for this condition.
• Do not install on hot water supply lines. The
maximum operating water temperature of this
filter system is 100 °F (37.8 °C).
• Protect filter from freezing. Drain filter when
temperatures drop below 40 °F (4.4 °C).
• The disposable filter cartridge MUST be replaced
every 6 months, at the rated capacity or if a
noticeable reduction in flow rate occurs.
• Protect from freezing, remove filter cartridge
when temperatures are expected to drop below
33° F.
• Do not install systems in areas where ambient
temperatures may go above 110° F (43.3° C).
• Where a backflow prevention device is installed
on a water system, a device for controlling
pressure due to thermal expansion must be
installed.
• Ensure all tubing and fittings are secure and free
of leaks.
Replacing the Water Filter
Replace the water filter:
• Approximately every six months.
• When the Water Filter Replace icon turns on.
• When the water dispenser output decreases.
To purchase a replacement water filter:
• Visit your local dealer or distributor
• Search using "water filter"on lg.com
• Use replacement cartridge: LT1000P, LT1000PC
or LT1000PCS
CAUTION
• DO NOT operate the refrigerator without a water
filter or water filter bypass plug installed.
1 If the top shelf, located below the water filter,
is in the highest position, it will need to be
removed prior to replacing the water filter.
• To remove the shelf, lift the rear of the shelf
and pull it out.
2 Remove the old water filter.
• Lower or remove the top left shelf to allow
the water filter to rotate all the way down.
Pinch the sides to open the water filter
cover.
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