LG AS-H076QGA2_QNA2 / AS-H096QGA2_QNA2 / AS-H126RGA2_RNA2 / LS-C096QLA2 / LS-H096QLA2 / LS-C126RLA2 / LS-H126RGA2_RMA2_RLA2 Service Manual ▷ View online
LG
Room
Air Conditioner
SERVICE MANUAL
LG
MODELS: AS-H076QGA2/QNA2
AS-H096QGA2/QNA2
AS-H126RGA2/RNA2
LS-C096QLA2
LS-H096QLA2
LS-C126RLA2
LS-H126RGA2/RMA2/RLA2
AS-H126RGA2/RNA2
LS-C096QLA2
LS-H096QLA2
LS-C126RLA2
LS-H126RGA2/RMA2/RLA2
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................5
Dimensions ...................................................................................................................................................10
Safety Precautions..........................................................................................................................................5
Dimensions ...................................................................................................................................................10
Symbols Used in this Manual ...................................................................................................................10
Indoor Unit................................................................................................................................................10
Outdoor Unit .............................................................................................................................................11
Indoor Unit................................................................................................................................................10
Outdoor Unit .............................................................................................................................................11
Product Specifications ................................................................................................................................12
Installation .....................................................................................................................................................15
Installation .....................................................................................................................................................15
Selection of the Best Location..................................................................................................................15
Piping Length and Elevation.....................................................................................................................15
How to Fix Installation Plate .....................................................................................................................16
Drill a Hole in the Wall ..............................................................................................................................16
Flaring Work .............................................................................................................................................17
Connection of Piping Indoor .....................................................................................................................18
Connection of the Pipes-Outdoor .............................................................................................................21
Connect the Cable to the Indoor Unit. ......................................................................................................22
Connect the Cable to the Outdoor Unit ....................................................................................................23
Checking the Drainage.............................................................................................................................24
Form the Piping ........................................................................................................................................24
Test Running ............................................................................................................................................25
Piping Length and Elevation.....................................................................................................................15
How to Fix Installation Plate .....................................................................................................................16
Drill a Hole in the Wall ..............................................................................................................................16
Flaring Work .............................................................................................................................................17
Connection of Piping Indoor .....................................................................................................................18
Connection of the Pipes-Outdoor .............................................................................................................21
Connect the Cable to the Indoor Unit. ......................................................................................................22
Connect the Cable to the Outdoor Unit ....................................................................................................23
Checking the Drainage.............................................................................................................................24
Form the Piping ........................................................................................................................................24
Test Running ............................................................................................................................................25
Operation ......................................................................................................................................................26
Function of Controls .................................................................................................................................26
Display Function ......................................................................................................................................30
Self-diagnosis Function ............................................................................................................................30
Remote Control Operations......................................................................................................................31
Display Function ......................................................................................................................................30
Self-diagnosis Function ............................................................................................................................30
Remote Control Operations......................................................................................................................31
Disassembly ..................................................................................................................................................32
Indoor Unit................................................................................................................................................32
Schematic Diagram.......................................................................................................................................35
Electric Control Device .............................................................................................................................35
Wiring Diagram.........................................................................................................................................37
Components Location ..............................................................................................................................39
Wiring Diagram.........................................................................................................................................37
Components Location ..............................................................................................................................39
Troubleshooting Guide ................................................................................................................................41
Refrigeration Cycle Diagram ....................................................................................................................41
Pipe Length and the Elevation .................................................................................................................42
2-way, 3-way Valve .................................................................................................................................43
Cycle Parts ...............................................................................................................................................49
Electronic Parts ........................................................................................................................................50
Pipe Length and the Elevation .................................................................................................................42
2-way, 3-way Valve .................................................................................................................................43
Cycle Parts ...............................................................................................................................................49
Electronic Parts ........................................................................................................................................50
Exploded View ..............................................................................................................................................57
Replacement Parts List ................................................................................................................................60
Replacement Parts List ................................................................................................................................60
Service Manual 3
LG Model Name
1
2
3
4
5
6
7
8
9
Code
Type
Code of Model
Meaning
1,2
Type of Airconditioner
A~Z
LS: LG Split Type Airconditioner
3
Chassis
A~Z
Name of toll of Unit
Ex. LS-R
Ex. LS-R
➔
S R Chassis
4,5
Capacity(Btu/h)
1~9
Cooling/Heating Capacity
Ex. "09"
Ex. "09"
➔
9,000Btu/h
6
Electric Range
1~9
Electric Standard
1
1
➔
115V/60Hz
6
➔
220~240V/50Hz
2
➔
220V/60Hz
7
➔
110V, 50/60Hz
3
➔
208~230V/60Hz 8
➔
380~415V/50Hz
5
➔
200~220V/50Hz
9
➔
380~415V/60Hz
7
Serial No.
0~9
A~Z
8
Cooling/Heating
A~Z
9
LG/OEM Brand
A~Z
L: LG Brand
M: 1st OEM Brand
G: 2nd LG Brand
N: 2nd OEM Brand
-
Basic
A
0
Plasma Filter
B
1
Auto Swing + Plasma Filter
C
2
Telephone + LED Display
D
3
Telephone + LCD Display
E
4
Auto Swing + Plasma Filter + Telephone + LCD
F
5
Low Ambient + Ambient/change
G
6
Plasma Filter + Low Ambient + Ambient/change
H
7
Internet
J
8
Auto Swing + Plasma Filter + Oxygen Generator
K
9
Auto Swing + Soft Start
Z
L
Auto Swing + Star Rating
M
Y
Auto Swing + Star Rating + Plasma Filter
N
X
Auto Swing + Soft Start + Star Rating
P
W
Auto Swing + Soft Start + Star Rating 4 + Plasma
Q
V
Auto Swing + Telephone + LCD
R
U
Auto Swing + Telephone + LCD + Soft Start
S
T
C/O
C
A
D
G
K
H/P
H
B
E
J
L
E/H+C/O
X
5
7
-
-
E/H+H/P
Y
6
8
-
-
C/O
F
M
Q
-
-
H/P
R
P
S
-
-
C/O
V
W
1
3
H/P
N
Y
2
4
H/P
T
H/P
U
INDOOR
BASIC
BASIC
PLASMA
PLASMA
GOLD FIN
OUTDOOR
BASIC
GOLD FIN
GOLD FIN
BASIC
GOLD FIN
UNIT
R22
HFC
R22+AC INV.
HFC+AC
INV.
HFC+DC
INV.
2002
4 Room Air Conditioner
1
2
-
3
4
5
6
7
8
9
10
Code
Type
Code of Model
Meaning
1
Producing Center,
A~Z
L: Chang-won R22
N: India
Refrigerant
A: Chang-won R410A
Z: Brazil
C: Chang-won R407C
D: Indonesia
T: China
M: Mexico
K: Turkey R22
V: Vietnam
E: Turkey R410A
S: Out Sourcing
H: Thailand
2
Product Type
A~Z
S: Split Type Air Conditioner
3
Cooling/Heating/Inverter
A~Z
C: Cooling only
H: Heat pump
X: C/O + E/Heater
Z: H/P + E/Heater
H: Heat pump
X: C/O + E/Heater
Z: H/P + E/Heater
V: AC Inverter C/O
N: AC Inverter H/P
Q: DC Inverter C/O
W: DC Inverter H/P
N: AC Inverter H/P
Q: DC Inverter C/O
W: DC Inverter H/P
4, 5
Capacity
0~9
Cooling/Heating Capacity
Ex. "09"
Ex. "09"
→
9,000 Btu/h
6
Electric Range
1~9
1: 115V/60Hz,
A: 220V, 50Hz, 3Phase
A~Z
2: 220V/60Hz
B: 208~230V, 60Hz, 3Phase
3: 208-230V/60Hz
C: 575V, 50Hz, 3Phase
5: 200-220V/50Hz
D: 440~460, 60Hz, 3Phase
6: 220-240V/50Hz
E: 265V, 60Hz
7: 110V, 50/60Hz
F: 200V, 50/60Hz
8: 380-415V/50Hz
9: 380-415V/60Hz
9: 380-415V/60Hz
7
Chassis
A~Z
Name of Chassis of Unit
Ex. LSP
Ex. LSP
→
SP Chassis
8
Look
A~Z
Look,
Color (Artcool Model)
Color (Artcool Model)
9
Function
A~Z
10
Serial No.
1~9
LG Model De
* ARTCOOL COLOR
velopment Serial No.
Basic
A
Basic+4Way
B
Plasma Filter
C
Plasma Filter+4 Way
D
Tele+LCD
E
Tele+LCD+Nano plasma+4Way
F
Nano Plasma F+(A/changeove)+A/clean+Low A
G
Nano Plasma F+(A/changeove)+A/clean+4way+Low A
H
Tele+LED+4way
I
Internet
J
Plasma F+4Way+Oxy generator
K
Nano Plasma F+(A/changeove)+A/clean
L
Nano Plasma F+(A/changeove)+A/clean+4way
M
Nano Plasma F+(A/changeove)+A/clean+PTC
N
Nano Plasma F+(A/changeove)+Autoclean+4way+PTC
P
Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC
Q
Negative ION+A/Clean
R
(Nano)Plasma+Negative ION+A/Clean
S
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean
T
Nano Plasma F+4Way+(A/changeove)+A/clean+
U
R
Mirror
W
White
B
Blue
D
Wood
M
Metal
C
Cherry
2003~