Icemaker And Dispenser Operation Principle And Repair Method; Working Principles - LG GR-B197GVQ Service Manual

1.
Working Principles
1-1.
Icemaker
Working Principles
1-2.
Dispenser Working Principles
1. This function is available in Model
GR-P247,
GR-P207 and
GR-L247,
GR-L207 where
water
and ice
are
available without
opening
freezer
compartment
door.
2. Crushed Ice is
automatically
selected when power is
initially applied
or
reapplied
after power
cut.
3. When dispenser selection switch is continuously pressed, light is
on
in the following
sequence:
Water Cube Ice Crushed Ice.
4.
Lamp
is
on
when
dispenser bushing
button is
pressed
and vice
versa.
5. When
dispenser
crushed ice
bushing
button is
pressed, dispenser
solenoid and
geared motor
work
so
that crushed ice
can
be
dispensed
if there is ice in the ice bin.
6. When
dispenser
cube ice
bushing
button is
pressed, dispenser solenoid,
cube ice solenoid and
geared motor
work
so
that cube ice
can
be
dispensed
if there is ice in the ice bin.
7. When
dispenser water bushing
button is
pressed, water
valve opens and
water
is
supplied
if water valve is
normally
installed
on
the
right
side of the compressor
area.
8. Ice and
water
are
not
available when freezer door is open.
ICEMAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD
-58-
?
Level Icemaker Cube Mould for Initial Control
after power is
input.
Power Input
Initial Control
Ice
Making
Control
Ice
Ejection
Control
Water
Supply
Control
Test Control
?
Wait until the
water
in the cube mould is frozen
after icemaker
starts operation.
?
Check ice bank is full of ice
by rotating
ice
ejection
motor
in normal and
reverse
direction and
eject
ice into
the ice bin if ice bin is
not
full.
?
This is for
refrigerator assembly
line and service. When
icemaking test
switch is
pressed,
it
operates
in the
following
steps:
initial ice
ejection water supply
control
steps.
?
Conduct
Icemaking
Control after
supplying water
into the icemaker
cube mould
by operating water
valve.