Explanation - LG WM2501H Series Service Manual

5-4. EXPLANATION OF EACH PROCESS
No. Process Explanation
1. Stay • Electrical power is supplied
• Washer is ready to work and the micom is in the active mode.
2. •
.
.
.
6.
.
.
.
Water
supply
Soaking
& washing
laundry
Heating &
washing
Washing
& heating
/ washing
Washing
Drainage
Untangling
(Sensing
eccent-
ricity)
After loading laundry and selecting a course and a cycle, water is
supplied and drum rotates.
When a user selects Pre-wash course, water is supplied through pre
wash valve.
To get laundry wet, drum rotates clockwise and counterclockwise.
If water amount is insufficient at this time, the Inlet valve will supply
water again.
• The heater heats the water in drum to the selected water temperature
and drum rotates for washing.
• When the water temperature reaches to the selected temperature, the
heating stops and only the drum rotates.
• If water temperature becomes lower than selected because of
re-supplied water, the heating starts again.
• Fuzzy Logic decides washing time according to the laundry load, water
temperature, and other factors.
A pump motor drains the water from the drum.
After sensing drained water amount by water level frequency, spin starts.
When a heating course is selected, stay cooling process is performed to
decrease the water temperature gradually to prevent laundry from being
damaged and for safety reasons.
• It balances laundry load and senses the eccentricity of the load, to only
allow spinning without vibration
• If the eccentricity is worse than the allowed level, it repeats the
disentangling process. When the repeated time is more than allowed
level, it displays UE.
• If the eccentricity is good, the intermittent spin starts.
• During this process, the drain pump works for drainage intermittently.
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