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LG WD(M)-8070F(H)(B) Service Manual page 25

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WD(M)-8070F(H)B, WD(M)-1070(5)F(H)B, WD(M)-1170(5)F(H)B, WD(M)-1270(5)F(H)B, WD(M)-1370(5)F(H)B
WD(M)-8074F(H)B, WD(M)-1074(6)F(H)B, WD(M)-1174(6)F(H)B, WD(M)-1274(6)F(H)B, WD(M)-1374(6)F(H)B
WD-8078FHB, WD-1078FHB, WM-1171(6)FHB, WM-1371(6)FHB, WD-1271FB
(6)
(5)
2
1
PWB ASSEMBLY (MAIN)
WD-8070F(H), WD-1070(5)F(H)
2
1
PWB ASSEMBLY (MAIN)
DRAIN MALFUNCTIONING
Is the drain hose twisted or frozen?
Is the impeller of the drain pump clogged?
Is the connector disconnected, disassembled?
Is the coil of drain pump cut-off?
(resistance of coil is 90~160¥ )
When checking voltage between connectors
(¥L , ¥M ) on spinning, is the voltage 220 - 240V~
as the figure?
Is the drain hose kinked or frozen?
Is the filter of drain pump clogged?
Is the connector disconnected or is the contact
bad?
Is the coil of drain pump cut-off?
(resistance of coil is 90~160 )
When checking voltage between two receptacles
as shown ( ,
) on spinning, is the voltage
220-240V ?
NO
NO
NO
NO
NO
NO
NO
NO
25
Repair drain hose.
YES
YES
Remove foreign material.
Reconnect or repair the
YES
connector.
Replace the pump
assembly.
YES
Replace the PWB
NO
assembly (Main) .
Repair drain hose.
YES
YES
Remove foreign material.
Reconnect or repair the
YES
connector.
Replace the pump
YES
assembly.
Replace the PWB
assembly (Main).
NO

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