LG LWM1560BHE / LWM1861BHE / LWM1861BHG / LWN1862BHG / LWN2262BHG Service Manual ▷ View online
—24—
—24—
COMPLAINT
CAUSE
REMEDY
Check voltage at outlet. Correct if none.
Check voltage to rotary switch. If none, check
power supply cord. Replace cord if circuit is open.
power supply cord. Replace cord if circuit is open.
Check switch continuity. Refer to wiring diagram
for terminal identification. Replace switch if
defective.
for terminal identification. Replace switch if
defective.
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
identification. Repair or replace loose terminal.
Test capacitor.
Replace if not within ±10% of manufacturer's
rating. Replace if shorted, open, or damaged.
Replace if not within ±10% of manufacturer's
rating. Replace if shorted, open, or damaged.
Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
scroll. Realign assembly.
Units using slinger ring condenser fans must
have
have
1
/
4
to
5
/
16
inch clearance to the base. If it is
hitting the base, shim up the bottom of the fan
motor with mounting screw(s).
motor with mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
rotate, replace the motor.
Check voltage. See limits on this page. If not within
limits, call an electrician.
limits, call an electrician.
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace
the motor.
low speed. If the speed does not change, replace
the motor.
Check grommets; if worn or missing, replace them.
If cracked, out of balance, or partially missing,
replace it.
replace it.
If cracked, out of balance, or partially missing,
replace it.
replace it.
Tighten it.
If knocking sounds continue when running or
loose, replace the motor. If the motor hums or
noise appears to be internal while running,
replace motor.
loose, replace the motor. If the motor hums or
noise appears to be internal while running,
replace motor.
No power
Power supply cord
Rotary switch
Wire disconnected or
connection loose
connection loose
Capacitor (Discharge
capacitor before testing.)
capacitor before testing.)
Will not rotate
Revolves on overload.
Grommets
Fan
Blower
Loose set screw
Worn bearings
Fan motor will not run.
Fan motor runs
intermittently
intermittently
Fan motor noise.
—27—
4. SCHEMATIC DIAGRAM
4.1 CIRCUIT DIAGRAM
• MODEL : LWM1560BHE/LWM1861BHE/LWM1861BHG/LWN1862BHG/LWN2262BHG
5
7
8
6
4
2
3
1
WH(BR)
BK(BR)
3854A90019A
WIRING DIAGRAM
1
3
8
5
9
2
12
4
6
7
8
8
10
11
PART NO.
LWM1560BHE LWM1861BHE/BHG LWN1862BHG LWN2262BHG
2H01159X
3H01307C
2H00598F
4681AR6033P 4681AR6033N 4681AR6033T 4681A20011B
6120AR2194F 6120AR2194F 6120AR2194P 6120AR2194Q
3H02488D
2H01127D
2H01127D
2H01127C
2H01127D
5417AR2652Q 5416AR2652P
2H01277Y
2H01277Z
3H00390A
3A02028Z
6871A20083A
3Q35015N
-
-
2A00093L
POWER CORD ASSY
ROTARY SWITCH
FAN MOTOR ASSY
SH CAPACITOR
LAMP ASSY
THERMOSTAT
COMPRESSOR
TERMINAL BLOCK
REVERSING COIL ASSY
DEICER P.C.B. ASSY
THERMISTOR
SUMP HEATER
1
2
3
4
5
6
7
8
9
10
11
12
1
1
1
1
1
1
1
2
1
1
1
1
LOCATION
NO.
DESCRIPTION
RE-
MARKS
Q'TY
PER
SET
—28—
• MODEL : LWN2262CHG/ LWN2262CHE
WIRING DIAGRAM
3854A20003E
BK(BR)
WH
ROTARY SWITCH
BL
BK
T/B 1
T/B 2
SUMP
HEATER
T/B4
T/B3
BK(RD)
BK(RD)
BK
BK
(
BR
)
WH
(
BR
)
BL
REVERSING COIL
BK
BK
WH
YL
BL
RD
RD
RD
RD
BK
BL
BL
BL
R
S
C
RD
BK
BL
BL
BK
YL
BL
RD
YL
F
C
H
WH
YL
BR
THERMOSTAT
H L
C
7
8
6
4
2
6
4
2
5
3
1
3
1
OR
(
BR
)
OR
(
BR
)
CAPA-
CITOR
START
CAPACITOR
RY-COMP
RY-COMP
RY-S/CAPA
CN-POWER
CN-POWER
SOFT STARTER
PWB ASSY
ROCKER
SWITCH
P.T.C
YL
YL
YL
RD
THERMISTOR
BL
BK
LAMP.
BK
BK
BR
DEICER
PWB ASSY
RD
BK
BL
L2
L3 L1
WH(BL)
POWER INPUT
GN/YL
(Plain) (Ribbed)
MOTOR
COMP.
SYNC.M.
2
3
3
4
1
3
4
1
3
8
5
9
2
12
4
6
13
7
8
8
10
11
PART NO.
LWN2262CHG
LWN2262CHE
2H01159X
2H00598F
4681A20011B
6120AR2194Q
3H02488D
2H01127D
2H01277Z
3H00390A
3A02028Z
6871A20083A
3Q35015N
2A00093L
6871A20052A
POWER CORD ASSY
ROTARY SWITCH
FAN MOTOR ASSY
SH CAPACITOR
LAMP ASSY
THERMOSTAT
COMPRESSOR
TERMINAL BLOCK
REVERSING COIL ASSY
DEICER P.C.B. ASSY
THERMISTOR
SUMP HEATER
SOFT STARTER PWB ASSY
1
2
3
4
5
6
7
8
9
10
11
12
13
1
1
1
1
1
1
1
2
1
1
1
1
1
LOCATION
NO.
DESCRIPTION
RE-
MARKS
Q'TY
PER
SET
—29—
• MODEL : LWN1862QHG/ LWN2262QHG
RY-SYNC.
WIRING DIAGRAM
3854A20003K
CN-TRANS 1
BK
BK
BL
BK
BK
BL
RD
T/B 2
T/B 1
BK
BK(RD)
BK(RD)
REVERSING COIL
CN-
4WAY
R
Y
-4W
A
Y
BK
BK
BK
RD
RD
SUMP
HEATER
RD
BL
CN-DISP 1
CN-
SYNC
CN-TH1
CN-DISP 2
R
Y
-LO
R
Y
-HIGH
BR
BR
CN-TRANS 2
FUSE
250V
T2A
ZNR01J
MAIN P
.W
.B ASSY
DISPLA
Y P
.W
.B ASSY
4
3
2
3
4
10
12
1
8
6
7
5
13
12
11
9
PART NO.
LWN1862QHG
LWN2262QHG
3H01307A
4681AR6033T
4681A20011B
6120AR2194P
6120AR2194Q
2H01277Y
2H01277Z
6871A20061S
6871A30005E
6170A20005A
6323AQ2333S
6631AQ3201B
6900AQ9028H
3A02028Z
3H00390A
2A00093L
POWER CORD ASSY
FAN MOTOR ASSY
SH CAPACITOR
COMPRESSOR
MAIN PWB ASSY
DISPLAY PWB ASSY
TRANSFORMER ASSY
THERMISTOR ASSY
CONNECTOR
FUSE
REVERSING COIL ASSY
TERMINAL BLOCK
SUMP HEATER
1
2
3
4
5
6
7
8
9
10
11
12
13
1
1
1
1
1
1
1
1
1
1
1
1
1
LOCATION
NO.
DESCRIPTION
RE-
MARKS
Q'TY
PER
SET
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