F1391QDP - LG Washing Machine Service Manual (repair manual). Page 21

Is the drain hose kinked ?

Check drain hose for kink and straighten the 

.

Drain Hose

Is the 

clogged ?

Check & Clean 

.

This kind of accumulation on the drain filter not only
prevents proper drainage, but also will promote
bacteria growth and cause odors.
This drain filter should be cleaned once a month.

Open the Cover by coin or

finger(only new model)

Drain water by removing the

hose cap.

Disassemble the pump

filter by turning the filter

cap counterclockwise.

Filter clogged by foreign objects

Assemble & close cap

Clean the filter