LG Refrigerator User Manual page 13

Operation
Lock
Door alarm
Filter condition
(filter replacement
cycle) display
function
Dispenser light
This button stops operation of different button and dispenser function.
Locking or Release is repeated whenever
the is pressed more than 3 seconds.
If you use the ALARM/LOCK button,
none of the other buttons will work
until you unlock them.
Door open warning
A warning tone will sound 3 times at thirty-second
intervals if the refrigerator or freezer door is left open
for more than sixty seconds.
Please contact with the local service center if warning
continue to sound even after closing the door.
There is a replacement indicator light for the
water filter cartridge on the dispenser.
The water filter should be replaced every six
months.
The filter light comes on to let you know
when to replace filter.
After replacing the filter, press and hold the
filter button more than 3 seconds to reset the indicator.
This button turn the dispenser light in the dispenser on an off.
The dispenser light function is turned ON
or OFF by pressing Light/Filter button.
If the dispenser light stays on for more
than 7 minutes, it will turn off
automatically.
Some models have an auto mode that
uses a light sensor to turn the dispenser
light on and off.
Auto light is not applicable to all models.
LOCK UNLOCK
On Off