F1403TD25 - LG Washing Machine Service Manual (repair manual). Page 24

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24
Is the 
Connector
connected correctly to
the 
Main PCB
and the 
Pump Motor 
?
Or is the 
Harness
alright ?
Is the 
Standpipe Height
greater
than 1.0 m above the floor?
When there is not water in the
pump casing, is the water level
frequency over 26.2KHz ?
Observe 
Standpipe Height
requirements 
of 
1.0
maximum.
- Your washer will not be able to drain out 
water adequately, if the standpipe exceeds 1.0 m.
In this case, water may flow back into the washer.
Check the 
Air Chamber
and the 
Tube
(clogged).
And When you check the water level frequency
again, if it is over 25.5KHz, you replace the
Pressure switch
.
YES
NO
Reconnect or repair the 
Connector
.
Or replace the 
Harness
.
NO
Replace the 
Main PCB
.
NO
Replace the 
Pump Motor
.
Is the resistance of the Pump Motor out
of 152 ~ 175Ω?
Or is the Impeller operating normally?
Is Pump motor started, when the spin mode is
started ? 
Escape
Binding
NO
NO
YES
YES
OR
YES
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