Owner’s Manual

34 MAINTENANCE
WARNING
• To reduce the risk associated with the ingestion
of contaminants, do not use with water that is
microbiologically unsafe or of unknown quality
without adequate disinfection before or after the
system.
• 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 125 psi
(862 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 ℉ (37.8 ℃).
• The disposable filter cartridge MUST be replaced
every 6 months, at the rated capacity or if a
noticeable reduction in flow rate occurs.
• To protect it from freezing, remove filter
cartridge when temperatures are expected to
drop below 34 ℉ (1 ℃).
• Do not install systems in areas where ambient
temperatures may go above 110 ℉ (43.3 ℃).
• 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
from leaks.
Replacing the Water Filter
• Replace the water filter:
- Approximately every six months.
- When the indicator 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: ADQ72910906
1 To remove the old water filter, turn the filter
counterclockwise and then pull down and out.
Make sure to rotate the filter down
completely before pulling it out of the
manifold hole.
CAUTION
• Make sure to turn off the household water
supply.
NOTE
• Replacing the water filter causes a small amount
of water (around 1 oz. or 25 cc) to drain.
• Wrap a cloth around the front end of the water
filter cover to collect any leaking water. Hold the
water filter upright, once it is removed, to
prevent any remaining water from spilling out of
the water filter.
2 To replace with a new water filter, remove the
red cap from the new filter.
NOTE
• The substitute cap must be retained for the
future. If the filter is removed and not replaced,
it is necessary to reinstall the substitute cap to
prevent water leaks from the filter housing.
3 Insert the filter into the filter receptacle on the
left side of the refrigerator compartment.