LG LS-J0762YL(AC) / LS-L1262YL(AC) / LS-Q096BUL(DC) / LS-R126CUL(DC) / LS-L12632L(AC) / S12LHN_SL2 Service Manual ▷ View online
MODEL : LS-J0762YL(AC)
LS-L1262YL(AC)
LS-Q096BUL(DC)
LS-R126CUL(DC)
LS-L12632L(AC)
LS-Q096BUL(DC)
LS-R126CUL(DC)
LS-L12632L(AC)
Room Air Conditioner
SERVICE MANUAL
CAUTION
-
BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
PRECAUTIONS IN THIS MANUAL.
-
ONLY FOR AUTHORIZED SERVICE PERSONNEL.
E-MAIL
Wiring Diagram
-10-
(1) Indoor Unit
Model: LS-_YL/UL Series
Model: LS-_NM/NN Series
Model: LS-L12632L
(2) Outdoor Unit
Model: LS-L12632L
CN-COIL2
CN-COIL1
REACTOR
CN-COMP
CN-FAN
WCN-NOISE1
TERMINAL
BLOCK
CN-4WAY
RY-
4WAY
4WAY
BR
BL
BL
GN/YL
RD
RD
BL
BR
BR
BL
FUSE
AC 250V/15A
GN/YL
RD
4WAY
VALVE
1(L)
2(N)
2(N)
3
TO
INDOOR
UNIT
INDOOR
UNIT
MAIN PWB ASM
OUTDOOR WIRING DIAGRAM
3854A20157L
YL
YL
COMP-
RESSOR
YL
W(C)
V(S)
U(R)
BL
RD
YL
BL
RD
SSR
COMPRESSOR
THERMISTOR
HEAT SINK
THERMISTOR
INTAKE/PIPE
THERMISTOR
THERMISTOR
CN-TH2
CN-TH1
WH
BK
BK
BK
GR
RD BL
YL
FAN
MOTOR
CN-COIL2
CN-COIL1
REACTOR
CN-COMP
CN-FAN
WCN-NOISE1
TERMINAL
BLOCK
CN-4WAY
RY-
4WAY
4WAY
BR
BL
GN/YL
RD
RD BL
BR
BR
BL
FUSE
AC 250V/15A
GN/YL
RD
4WAY
VALVE
1(L)
2(N)
3
TO
INDOOR
UNIT
INDOOR
UNIT
MAIN PWB ASM
OUTDOOR WIRING DIAGRAM
3854A20051V
YL
YL
COMP-
RESSOR
YL
W(C)
V(R)
U(S)
BL RD
YL BL RD
SSR
COMPRESSOR
THERMISTOR
HEAT SINK
THERMISTOR
INTAKE/PIPE
THERMISTOR
CN-TH2
CN-TH1
WH
BK
BK
BK
GR
YL BL
RD
FAN
MOTOR
PO
WER
BR
BR
BL
RD
GN/YL
BL
1(L)
2(N)
3
MOTOR
CN-MOTOR
CN-TAB1
CN-A
C/DC
CN-A
C/DC
STEP
MOTOR
STEP
MOTOR
H.V.
ASM
RD AIR
CLEAN
(
PLASMA
)
SAFETY S/W1
SAFETY S/W2
BK
BK
BK
BK
BK
BK
BK
CN-U/D
CN-L/R
CN-DISP1
DISPLAY PWB ASM
INDOOR WIRING DIAGRAM
3854A20142G
SW(FORCE)
T/BLOCK
TO OUTDOOR UNIT
SSR
AC PWB ASM
DC PWB ASM
OR
BK
BR
4
RY-POWER
FUSE AC
250V T2A
250V T2A
3
YL
SH-CAPA
GN/YL
CN-DISP2
BR
BL
CN-TH
THERMISTOR
PO
WER
BR
BR
BL
RD
GN/YL
BL
1(L)
2(N)
3
MOTOR
CN-MOTOR
CN-TAB1
CN-A
C/DC
CN-A
C/DC
STEP
MOTOR
STEP
MOTOR
H.V.
ASM
RD AIR
CLEAN
(
PLASMA
)
SAFETY S/W1
SAFETY S/W2
BK
BK
BK
BK
BK
BK
BK
CN-U/D
CN-L/R
CN-DISP1
DISPLAY PWB ASM
INDOOR WIRING DIAGRAM
3854A20142V
SW(FORCE)
T/BLOCK
TO OUTDOOR UNIT
SSR
AC PWB ASM
DC PWB ASM
OR
BK
BR
4
RY-POWER
FUSE AC
250V T2A
250V T2A
3
YL
SH-CAPA
GN/YL
BR
BL
CN-TH
THERMISTOR
PO
WER
BR
BR
BL
RD
GN/YL
BL
1(L)
2(N)
3
MOTOR
CN-MOTOR
CN-TAB1
CN-A
C/DC
CN-A
C/DC
STEP
MOTOR
STEP
MOTOR
H.V.
ASM
RD AIR
CLEAN
(
PLASMA
)
SAFETY S/W1
BK
BK
BK
BK
CN-U/D
CN-L/R
CN-DISP1
DISPLAY PWB ASM
INDOOR WIRING DIAGRAM
3854A20305B
SW(FORCE)
T/BLOCK
TO OUTDOOR UNIT
SSR
AC PWB ASM
DC PWB ASM
OR
BK
BR
4
RY-POWER
FUSE AC
250V T2A
250V T2A
3
YL
SH-CAPA
GN/YL
CN-DISP2
BR
BL
CN-TH
THERMISTOR
Operation Details
1. LED display of indoor unit
■
LS-_YL/UL Series
■
LS-_NM/NN Series
-11-
Operation
indicator
Shape of
display
Setting
temp.
Standard
Too hot
Hot
Cold
Too cold
Jet
(Cool, Heat)
Test
operation
Comfortable
A.I operation mode
Cooling
heating
dehumidifi-
cation
Energy save
in cooling
mode
Operation Indicator
Sleep Timer Indicator
Timer Indicator
Preheat Indicator
Setting Temp.
• On while in appliance operation, off while in appliance pause.
• Blinking(3sec off/0.5sec on) according to Error Code as long as the system mal-
• Blinking(3sec off/0.5sec on) according to Error Code as long as the system mal-
functions.
• On while in sleep timer mode, off when sleep timer cancel or appliance operation
pause.
• On while in timer mode(on/off), off when timer mode is completed or canceled.
• Off except when hot start during heating mode operation or while in defrost control.
• Cooling/heating/dehumidification mode : setting temperature from remote control
• Fuzzy operation mode : fuzzy key data(5sec on)
• Fuzzy operation mode : fuzzy key data(5sec on)
➔
AI
Operation Indicator
Power Saving Indicator
Timer Indicator
Preheat Indicator
• On while in appliance operation, off while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off/0.5 sec on)
• Flashing while in disconnection or short in Thermistor. (3 sec off/0.5 sec on)
• On while in power saving cold mode, off when power saving cold cancel.
• On while in timer mode(on/off) and sleep timer mode (on), off when timer mode is
completed or canceled.
• Off except when hot start during heating mode operation or while in defrost control.
■
How to operate the power display (LS-_YL/UL Series)
• It must be displayed the power level that will be operating frequency of compressor.
• It indicates power levels that compressor operating frequency is controlled to depend on indoor and outdoor
• It indicates power levels that compressor operating frequency is controlled to depend on indoor and outdoor
conditions.
• It is displayed as below.
❐
Heat mode operation
- Power level 1: below Step 2 of COMP. operating frequency
- Power level 2: below Step 4 of COMP. operating frequency
- Power level 3: Equal Step 5 of COMP. operating frequency
- Power level 4: below Step 7 of COMP. operating frequency
- Power level 2: below Step 4 of COMP. operating frequency
- Power level 3: Equal Step 5 of COMP. operating frequency
- Power level 4: below Step 7 of COMP. operating frequency
❐
Operation mode except heat mode operation
- Power level 1: below Step 2 of COMP. operating frequency
- Power level 2: below Step 4 of COMP. operating frequency
- Power level 3: Equal Step 5 of COMP. operating frequency
- Power level 4: below Step 7 of COMP. operating frequency
- Power level 2: below Step 4 of COMP. operating frequency
- Power level 3: Equal Step 5 of COMP. operating frequency
- Power level 4: below Step 7 of COMP. operating frequency
-12-
Power Level 1
Power Level 2
Power Level 3
Power Level 4