LG WM2487H MA Series Service Manual page 28

Hose Connector
(Water circulation
Hose
& Steam Nozzle)
Connector
Connector
BL WH BL BK
YL
YL
RD
BK
RD
YL
BL
BL
WH 
WH
RD
SB
SB
WH SB WH
WILL NOT CIRCULATE WATER
Is the impeller of the drain pump clogged?
Are the Hose Connector and/or Hose clogged?
Is the connector disconnected, disassembled?
Is the coil of the right side of drain pump open
or short circuited? (Coil R is 18-30 Ω)
When checking voltage between the
connectors during spin, is the voltage 120 V AC,
as the figure?
NO
NO
NO
NO
27
YES
Remove foreign material.
YES
Remove foreign material.
Reconnect or repair
YES
the connector.
YES YES
Replace PUMP MOTOR
ASSEMBLY.
NO
Replace the MAIN PWB
ASSEMBLY.