48 MAINTENANCE
• 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
from leaks.
Replacing the Water Filter
• Replace the water filter:
- Approximately every six months.
- When the Replace Filter h 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, LT1000PCS or ADQ747935**
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 any shelf, tilt up the front of the
shelf and lift it. Pull the shelf out.
2 Pinch the sides to open the water filter cover.
3 Pull the water filter downward and turn it
counterclockwise before pulling it out.
• Make sure to rotate the filter down
completely before pulling it out of the
manifold hole.
• 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.
4 Replace with a new water filter.
• Take the new water filter out of its packing
and remove the protective cover from the o-
rings. With the water filter tabs in the
horizontal position, push the new water
filter into the manifold hole and turn it
clockwise until it stops.
5 Close the water filter cover. The cover will click
when closed correctly.
6 After the water filter is replaced, dispense 2.5
gallons of water (flush for approximately 5
minutes) to remove trapped air and
contaminants from the system.
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