LG WM3988H-A Series Manual page 69

Water Temperature Control
Water Temperature Control
A
B, D, and F
C, E, and G
H
Prewash valve opens, cold water is supplied.
Hot valve opens to raise water temperature to 131° F.
Cold valve opens to lower water temp to 122° F.
No water is supplied because water temp reaches target.
69 T-29
WM3988