LG WD-12311RD Service Manual page 21

Is water supply shut-off?
Is the tap opened?
When you press both WASH/RINSE button and
Spin button simultaneously, is the water level
frequency below 240?
Is the inlet valve filter clogged with impurity?
Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8
Check the voltage of the inlet valve connector
120-127V~.
(Refer to 7-2 QC TEST MODE)
Is water supplied?
Are replaceptacles correctly connected to the
Wiring diagram
terminals of the INLET VALVE ASSEMBLY?
Is detergent put in the correct compartment of
the drawer?
Is the detergent hardened?
NO WATER SUPPLY
NO
YES
NO
NO
kΩ
YES
DETERGENT DOES NOT FLOW IN
YES
YES
YES
YES
YES
?
YES
20
NO
Open the tap.
Check the AIR CHAMBER
and the tube clogged
with impurity.
Clean the filter.
Replace the INLET VALVE
NO
ASSEMBLY.
NO
Replace the MAIN PWB
ASSEMBLY
NO
Refer to
^NO WATER SUPPLY_
Check the wiring on the
NO
dispenser.
Put the detergent in the
correct position
NO
PRE+MAIN
MAIN WASH
: Detergent
Clean the drawer.