LG WD1873RDS Service Manual ▷ View online
33
FOR AUTHORIZED SERVICE TECHNICIAN
34
FOR AUTHORIZED SERVICE TECHNICIAN
DETERGENT DOES NOT FLOW IN
Refer to
NO WATER
SUPPLY.
Yes
Yes
No
Has detergent been put in
the correct compartment
of the dispenser?
(1) Liquid chlorine Bleach Compartment
(2) Liquid fabric Softener Compartment
(3) Prewash Compartment
(4) Main Wash Compartment
Is the detergent caked or
hardened?
Is water supplied?
Check the
wiring.
No
Are receptacles correctly
connected to the terminals
of the INLET VALVE
ASSEMBLY?
Put the
detergent in
the correct
place.
Clean the
dispenser.
Yes
Yes
No
Pre wash
Main wash
: Detergent
Prewash
Hot water
Main wash
bleach
Dry
(1)
(4) (3)
(2)
35
FOR AUTHORIZED SERVICE TECHNICIAN
LIQUID DETERGENT/SOFTENER/
BLEACH DOES NOT FLOW IN
ABNORMAL SOUND
Is water supplied?
Yes
No
Are the plugs correctly
connected to the terminals of
the INLET VALVE
ASSEMBLY?
Is the motor bolt loosened?
Is the liquid detergent/
softener/bleach cap clogged?
Check the
wiring on the
dispenser.
Refer to
NO WATER
SUPPLY.
No
Is liquid detergent/softener/
bleach put in the correct
compartment of the drawer?
Put it in the
correct
compartment.
Clean the cap
and
container.
No
Yes
Yes
Yes
Secure the
bolt.
Is there friction noise coming
from the motor?
Check hall
sensor.
Replace If
defective.
Then check
stator.
Replace if
necessary.
Check rotor
for broken
magnets.
Replace rotor
if necessary.
Yes
No
Yes
(1) Liquid chlorine Bleach Compartment
(2) Liquid fabric Softener Compartment
(3) Prewash Compartment
(4) Main Wash Compartment
Prewash
Hot water
Main wash
bleach
Dry
(1)
(4) (3)
(2)
Bleach cap
Softener
cap
Liquid detergent cap
36
FOR AUTHORIZED SERVICE TECHNICIAN
9. COMPONENT TESTING INFORMATION
9-1. FILTER ASSEMBLY (LINE FILTER)
When Resistance (Ohm) checking the Component, be sure to turn the power off,
and do voltage discharge sufficiently.
WARNING
Wiring
diagram
Circuit in the MAIN PWB / Wiring Diagram
Vac
MAIN PWB
ASSEMBLY
FUSE
RD1
WH1
LI
L2
RI
CI
C2
C3
3
2
1
3
2
1
Test
points
and
Result
and
Result
Test Points
Result
WH (1) to RD (3)
WH (3) to RD (1)
WH (3) to RD (1)
0 Ω
0 Ω
0 Ω
(3)
(1)
WH1
(3)
(1) RD1
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