LG LDF9810ST Product Training Manual page 41

Adding Rinse Aid
The factory setting for rinse aid dispensing is 3.
Too little rinse aid contributes to spotting, streaking, and
poor drying performance. Too much rinse aid causes
foaming, which leads to poor washing performance.
How often you refill the dispenser depends upon your
washing habits, including the rinse aid setting, the number
of loads per month you wash, and other factors.
The indicator light will illuminate when the level is low at the
start of a load.
LDF9810ST – Steam Dishwasher
41
T-15