LG LRSC21934SW, Service Manual

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LCD check function: If simultaneously pressing super freezer button and freezing temperature adjustment button for a
second, a back light is turned on and all display LCD graphics on. If releasing the button, the LCD
graphic displays the previous status, the back light is turned off (LCD graphic and back light ON/OFF
check).
2-18. Function of dispenser and water dispenser built-in
1. This is function allowing ice and water to come outside without opening door.
2. If pressing the dispenser switch (rubber button) after selecting ice (cube ice, crushed ice) or water, ice and water
equivalent to each come out. However, the duct doors are opened by electrical solenoid valve (Duct Door Solenoid) if
pressing the press switch in case of selecting ICE. If pressing the dispenser press switch and then detaching the hands,
the duct door is closed after it is opened for 5 seconds.
3. Function allowing ice and water to come stops if freezing room doors are opened.
4. If there is no Off signal even when 3 minutes have passed while pressing the dispenser press switch after selecting ice
(cube ice, crushed ice) or water, geared motor and solenoid (Cube, Water) is automatically turned off. However, the
solenoid (duct door) is stop 5 seconds after Off (to prevent short-circuit of a coil due to overheat of solenoid).
5. Dispenser Lamp On/Off function
Lamp on the dispenser part is turned on if pressing the dispenser press switch after selecting ice (cube ice, crushed ice)
or water. If detaching the hands, it is turned off.
6. Selection function of water/crushed/ cube ice
1) This is function to allow selection of water/crushed/ cube ice function depending on user’s selection. Display and
selection is done if pressing the dispenser selection button.
2) In the initial Power On, cube ice is automatically selected.
3) In selecting cube ice, geared motor is operated so that crushed ice can be supplied outside if pressing the press switch
when ice is formed in the ice storage container (Bank, Ice).
4) In selecting cube ice, geared motor is operated so that cube ice can be supplied outside if pressing the press switch
when ice is formed in the ice storage container (Bank, Ice).
7. Water dispenser function
1) LCD is displayed for selection if user selects water at the function adjustment part.
2) Water dispenser function is a type directly connected to a water pipe. The water solenoid valve built-in at the right side
of the M/C room is opened so that water can be supplied if selecting Water from the function adjustment part and then
pressing the press switch.
MICOM FUNCTION
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<TEST MODE 1 STATUS LCD>
<TEST MODE 2 STATUS LCD>
ON
WATER
TEMP TEMP
FILTER STATUS ROOM TEMP
LOCK
UNLOCK
6
5
4
3
2
1
FILTER RESET
PUSH 3 SEC
H
M
L
CUBED
CRUSHED
OFF
H
M
L
H M L
TEMP
TEMP
H M L
ROOM TEMP
DIGITAL
SENSOR
UNLOCK LOCK
ON OFF
H M L
H M L