LG WM3270C SERIES - Page 54

54
6
123 123
4 4
5 5
6
WH
3 
M
OTOR
6
1
2
3
132
4 4
5
5
6
1
2
3
13
2
12
3
13
2
4 4
123 13
2
4 4
21
1
2
21 21
WH
W
H
WH
WH
B
L
123
231
NA
PRESSURE
S
ENSOR
V
SB
WH
NA3
BL1
BL3
NA2
WH
NA
NFC
MODULE
123
231
B
LEAC
H
1
2
1
2
MAIN
12 12
PRE
WASH
12 12
12 12
1
23
231
NOISE
FIL
TER
123
231
WH
RD
BK
(L1)
WH
(N
)
GN
POWER
CORD
120 V
AC
/ 60
H
Z
GN
/
YL
BN (L1)
PTO
PTO
SOLE
NOID
123
532
4
4
DOOR LOCK SWITCH
WH
BL (N)
BN (L1)
BL (N)
BK (L1)
BK (L1)
B
L
(L1)
BK (L1)
BK (L1)
BK (L1)
BN
BN
Relays
BL
BL
WH
WH
GY
BL
YL
OR
BL
BK
RD
MAIN PWB
BL
YL
X71
BK
X134
*Door Lo
ck Solenoid 120 V
A
C
(4)
OR to (3) BL by Pulse
Oh
m
Check OR to BL 700
to 1500
*Doo
r
Swit
ch M
akes / Break
s Neut
ral
Side of
Line (2)
Rd to (1) BK
BK (L1)
BK (L1)
BK (L1)
V
SB
WH
(N)
(N)
(N)
(N)
120 V
AC
INLET
VALVES
800 to 1200
3  Motor Ohm Tests
5
to
15 Ohms
1 to 2 1 to 3 2 to 3
DISPLAY PWB
9
8
7
8
7910
10
6 6
5 5
43
43
654
3
21
7
B
K
BR
R
D
OR
YL
G
N
PK
Door
M
on
it
or
Circuit
WM3270C* Wiring Diagram
1
2
3
4
56
P
S Vol
tage Tests
2.5 to 3.0 V
DC
WH to V
WH to SB
Fr
equenc
y 26 KH
Z
to 23 KH
Z
Ohm Check
20 to 25
V to SB
Tri
acs (L1)
REGULATED POWER SUPPLY TEST Step 1:
* Disconnect & Reconnect Washer to Power /
120 V
AC
BK to RD / RD LED OFF
* Press POWER Button / 0 V
AC
BK to RD / RD LED ON!
Note: Ohm check POWER Button Switch from BK to
YL / Switch is Normally Closed / Press Button & Switch
OPENS!
234567
1
23
45
67
1
234567
110
10
23
45
67
89
8
9
1
2
3
45
67
110 10
23
4567
89
89
1
23
45
67
110
10
23
4
5
67
89 8
9
1
DISPLAY PWB
BK
6
5
4321
7
765
4
3
2
BR
RD
OR
YL
GN
(N)
(L1)
(L1
)
HOT
VA
L
VE
NOTES
Test Mode
Press & Hold
SPIN SPEED & SOIL LEVEL
Press POWER
Press START / PAUSE to cycle thru tests
Componen
t Tests
Voltage Tests with connectors installed
Ohm Tests with connectors removed
RD
N
A
4
OR
BL (L1)
BL
YL
GY
WH
BK
(L1)
BN
BN
BN
RORO
BL (L1
)
123
231
UVW
321
231
BL
RD
YL
1
2
3
1
3
2
GY4
BL
RD
YL
THERMI
STO
R
.5 to 4.5 V
DC
O
hms T
es
t
50 to 60 @
Room
Temperature
WH to BL – WASH
OR (N)
(N)
(N)
SB
BL (N)
REGULATED POWER SUPPLY
T
EST Step 2:
With RED LED ON / CK the following Voltages
RD to
OR – 12 V
D
C
R
D to YL – 5 V
DC
WH
C
NC
Power Button
N
.
C.
Wiring Color Legend
BK – Black BL – Blue BN – Brown GN – Green GY – Gray
OR – Orange PK – Pink RD – Red SB – Sky Blue WH
– White
V – Violet YL – Yellow
2
2
1 1
CO
N 4
-1
1
BK
PK
V
B
L
Function Test while operating;
Press Delay Wash & S
oil Level = Water Level (255 Empty-213 Flood Level)
Press Delay Wash & Spin Speed =
Motor RPM
Press Delay Wash & Wash
Temp.= Temp. Celsius
DRAIN
PUMP
BN
BK
Pump Motors 120 V
A
C
Ohms Test
Drain Motor BK to BN 13 to 17
SB
SB
8
8
1
2
3
45
56
6
1
2
3
4
1
2
12
WH
WH
RD (L1)
RD (L1)
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