DOWNLOAD LG WM2487HWM Service Manual ↓ Size: 7.36 MB | Pages: 64 in PDF or view online for FREE

Model
WM2487HWM
Pages
64
Size
7.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wm2487hwm.pdf
Date

LG WM2487HWM Service Manual ▷ View online

16
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.
Water
supply
• 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.
3.
Soaking
& washing
laundry
• To get laundry wet, drum rotates clockwise and counterclockwise.
• If water amount is insufficient at this time, the Inlet valve will supply
water again. 
4.
Heating &
washing
• The heater heats the water in drum to the selected water temperature
and drum rotates for washing. 
5.
~
6.
Washing
& heating
/ 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.
7.
Washing
• Fuzzy Logic decides washing time according to the laundry load, water
temperature, and other factors.
8.
Drainage
• 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.
9.
Untangling
(Sensing
eccent-
ricity)
• 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.
17
No.
Process
Explanation
A.
Intermittent
spin
• To reach the correct set speed, the motor rotates clockwise and
counterclockwise directions after spin process starts.
• If the water level frequency is lower than 23.0 kHz, a washer senses
suds and starts suds removal process.
B.
Rinse
spin
• In this process, the remaining water during washing process is
extracted and the selected speed is kept.
• Removing suds process is in active mode at this cycle.
C.
Remaining
spin
• After spin finishes, the drum rotates by remaining spin power until it stops.
Motor power is off.
• This process is overlapped with next process. 
D.
Rinse water
supply
• Water supply for rinse process
E.
Rinse
• Rinsing process.
F.
Last
drainage
• After spin finishes and power is not supplied to motor, the drum
rotates by remaining spin power
• If rinse hold is selected, the drainage is not proceeded after rinse
finishes.
G.
Disentangling
• The same as item 9.
H.
Intermittent spin • The same as item A.
I.
Main spin1
• The same as item B.
J.
Main spin2
• At the end of a main spin, the spin speed will reach the selected rpm.
K.
Remaining spin • The same with item C.
L.
Disentangling
• After spin finishes, disentangling starts to remove unbalanced
laundry.
M.
End
• After 'end' signal is displayed, it stays for 8 seconds and power is
automatically turned off. (Auto type door switch)
• After door switch is off, end signal is displayed in the case of
manual type and it takes around 2 minute to turn off door switch.
18
6. WIRING DIAGRAM/PROGRAM CHART
19
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