LG LS-C126U_M0 / LS-H126U_M0 Service Manual ▷ View online
SERVICE MANUAL
Room Air Conditioner
CAUTION
-
BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
PRECAUTIONS IN THIS MANUAL.
-
ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODEL: LS-C126U*M0
LS-H126U*M0
Contents
LG Model Name ...................................................................................................................... 3
Functions ................................................................................................................................ 4
Product References .............................................................................................................. 6
Dimensions ............................................................................................................................. 7
Refrigeration Cycle Diagram ................................................................................................. 9
Wiring Diagram..................................................................................................................... 10
Operation Details ................................................................................................................. 11
Display Function .................................................................................................................. 18
Installation ............................................................................................................................ 19
Operation .............................................................................................................................. 32
Disassembly of the parts (Indoor Unit) .............................................................................. 33
2-way, 3-way Valve................................................................................................................ 36
Cycle Troubleshooting Guide.............................................................................................. 44
Electronic Parts Troubleshooting Guide............................................................................ 45
Electronic Control Device.................................................................................................... 54
Schematic Diagram .............................................................................................................. 56
Exploded View and Replacement Parts List...................................................................... 57
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LG Model Name
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
U: China R410A
U: China R410A
X: Me xico
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
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
LG Model Development Serial No.
* ARTCOOL COLOR
R
Mirror
W
White
B
Blue
D
Wood
M
Metal
C
Cherry
N
Walnut
A
Gogh
S
Sisley
Q
Quran
K
Mecca
Functions
• Room temperature sensor. (THERMISTOR)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 sec at the starting.
• Restarting is inhibited for approx. 3 minutes.
• High, Med, Low, CHAOS, JET COOL
• Intermittent operation of fan at low speed.
• The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The fan is switched to intermittent or irregular operation
• The fan speed is automatically switched from high to low speed.
• The fan speed is automatically switched from high to low speed.
• The louver can be set at the desired position or swing
up and down automatically.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Soft Dry Operation Mode
• The function will be operated while in any
operation mode with selecting the function.
• The function is to be stopped while it is
operating with selecting the function.
• Both the indoor and outdoor fan stops dur-
ing defrosting.
• The indoor fan stops until the
evaporator pipe temperature will be reached
at 28°C.
at 28°C.
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
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Defrost(Deice) control (Heating)
Hot-start Control (Heating)
PLASMA