TS1600DPS, TS1800DPS - LG Washing Machine Service Manual (repair manual). Page 49

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49
7) Water does not drain.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
1. Check whether there is drain pump/
drain valve working sound.
2. Check resistance between terminals if
there is no working sound of the drain
pump/drain valve.
3. Check connection parts of the leads if
there is no working sound and its
resistance is normal.
Drain Hose
1. Check whether the drain hose is put in a
narrow space and kinked.
2. Check whether the drain hose is
blocked by foreign objects. It may
happen in case of the hose is a little
kinked.
There is pump/valve
working sound.
∞ Ω
Defect in connection
part.
Connection part has
no defects.
Kinked.
Blocked.
Drain pump/drain valve 
is blocked by
foreign objects.
Itʼs coil is open.
Defect in connection part.
Defect of the controller.
Defect of installation.
Blocked hose.
Disassemble the drain pump/
drain valve cap and remove
the foreign objects in the 
casing.
Change the drain pump/
drain valve.
Repair defected connection.
Change the controller.
Reinstall so that it should
not be kinked.
Remove the objects and
reinstall so that it canʼt
be kinked.
8) Water drains thought it is not the time of drain.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
PV Case
1. If water drains though the drain motor is
normally returned, check whether PV
asm is blocked by foreign objects or the
bellows in the PV asm is deformed.
Controller
1. Check whether the drain motor or the
drain pump works immediately after
power is turned on.
Blocked.
Bellows deformed.
Works.
Defect of PV Bellows.
Defect of the controller
(Triac defect)
Remove the objects in the
PV asm.
Change the PV bellows.
(The bellows may swell up if
it contact petroleum or
petrochemical substance
because it is made of rubber)
Change the controller.
Drain Pump/Drain Valve
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