LG AS-C186TLB1 / AS-C186TLM1 / AS-C186TMA1 / AS-C186TNA1 / AS-C246TLB0 / AS-C246TLM0 / AS-C246TMA0 / AS-C246TNA0 / AS-H146TLM0 / AS-H186TLB0 / AS-H186TLM0 / AS-H186TMA0 / AS-H186TNA0 / AS-H246TLB0 / AS-H246TLM0 / AS-H246TMA0 / AS-H246TNA0 Service Manual ▷ View online
LG
Room
Air Conditioner
SERVICE MANUAL
LG
MODELS:
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
AS-C186TLB1
AS-C186TLM1
AS-C186TMA1
AS-C186TNA1
AS-C246TLB0
AS-C246TLM0
AS-C246TMA0
AS-C246TNA0
AS-H146TLM0
AS-C186TLM1
AS-C186TMA1
AS-C186TNA1
AS-C246TLB0
AS-C246TLM0
AS-C246TMA0
AS-C246TNA0
AS-H146TLM0
AS-H186TLB0
AS-H186TLM0
AS-H186TMA0
AS-H186TNA0
AS-H246TLB0
AS-H246TLM0
AS-H246TMA0
AS-H246TNA0
AS-H186TLM0
AS-H186TMA0
AS-H186TNA0
AS-H246TLB0
AS-H246TLM0
AS-H246TMA0
AS-H246TNA0
2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................4
Dimensions......................................................................................................................................................9
Safety Precautions..........................................................................................................................................4
Dimensions......................................................................................................................................................9
Symbols Used in this Manual .....................................................................................................................9
Indoor Unit..................................................................................................................................................9
Outdoor Unit .............................................................................................................................................10
Indoor Unit..................................................................................................................................................9
Outdoor Unit .............................................................................................................................................10
Product Specifications ................................................................................................................................12
Installation .....................................................................................................................................................14
Installation .....................................................................................................................................................14
Selection of the best location ...................................................................................................................14
Piping length and elevation ......................................................................................................................14
How to fix installation................................................................................................................................15
Drill a hole in the wall ...............................................................................................................................15
Flaring work..............................................................................................................................................16
Connection of piping Indoor .....................................................................................................................17
Connection of the pipes-Outdoor .............................................................................................................20
Connect the cable to the Indoor unit ........................................................................................................21
Connect the cable to the outdoor unit ......................................................................................................22
Checking the drainage .............................................................................................................................23
Form the piping ........................................................................................................................................23
Air Purging ...............................................................................................................................................24
Air Purging with Vacuum Pump................................................................................................................24
Test Running ............................................................................................................................................25
Piping length and elevation ......................................................................................................................14
How to fix installation................................................................................................................................15
Drill a hole in the wall ...............................................................................................................................15
Flaring work..............................................................................................................................................16
Connection of piping Indoor .....................................................................................................................17
Connection of the pipes-Outdoor .............................................................................................................20
Connect the cable to the Indoor unit ........................................................................................................21
Connect the cable to the outdoor unit ......................................................................................................22
Checking the drainage .............................................................................................................................23
Form the piping ........................................................................................................................................23
Air Purging ...............................................................................................................................................24
Air Purging with Vacuum Pump................................................................................................................24
Test Running ............................................................................................................................................25
Operation .......................................................................................................................................................26
Function of Controls .................................................................................................................................26
Display Function ......................................................................................................................................33
Self-diagnosis Function ............................................................................................................................33
Remote Control Operations......................................................................................................................34
Remote Control Operations......................................................................................................................35
Display Function ......................................................................................................................................33
Self-diagnosis Function ............................................................................................................................33
Remote Control Operations......................................................................................................................34
Remote Control Operations......................................................................................................................35
Disassembly ..................................................................................................................................................36
Indoor unit ................................................................................................................................................36
Schematic Diagram.......................................................................................................................................39
Electric Control Device .............................................................................................................................39
Components Location ..............................................................................................................................43
Wiring diagram .........................................................................................................................................45
Components Location ..............................................................................................................................43
Wiring diagram .........................................................................................................................................45
Troubleshooting Guide ................................................................................................................................47
Refrigeration Cycle Diagram ....................................................................................................................47
Pipe length and the elevation ...................................................................................................................48
2-way, 3-way Valve ..................................................................................................................................49
Air purging ................................................................................................................................................50
Pumping down .........................................................................................................................................51
Cycle Parts ...............................................................................................................................................56
Electronic Parts ........................................................................................................................................57
Pipe length and the elevation ...................................................................................................................48
2-way, 3-way Valve ..................................................................................................................................49
Air purging ................................................................................................................................................50
Pumping down .........................................................................................................................................51
Cycle Parts ...............................................................................................................................................56
Electronic Parts ........................................................................................................................................57
Exploded View...............................................................................................................................................64
Replacement Parts List ................................................................................................................................67
Replacement Parts List ................................................................................................................................67
Service Manual 3
LG Model Name
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
Basic+4Way
Plasma Filter
Plasma Filter+4 Way
Tele+LCD
Tele+LCD+Nano plasma+4Way
Nano Plasma F+(A/changeove)+A/clean+Low A
Nano Plasma F+(A/changeove)+A/clean+4way+Low A
Tele+LED+4way
Internet
Plasma F+4Way+Oxy generator
Nano Plasma F+(A/changeove)+A/clean
Nano Plasma F+(A/changeove)+A/clean+4way
Nano Plasma F+(A/changeove)+A/clean+PTC
Nano Plasma F+(A/changeove)+Autoclean+4way+PTC
Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC
Negative ION+A/Clean
(Nano)Plasma+Negative ION+A/Clean
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean
Nano Plasma F+4Way+(A/changeove)+A/clean+
Basic+4Way
Plasma Filter
Plasma Filter+4 Way
Tele+LCD
Tele+LCD+Nano plasma+4Way
Nano Plasma F+(A/changeove)+A/clean+Low A
Nano Plasma F+(A/changeove)+A/clean+4way+Low A
Tele+LED+4way
Internet
Plasma F+4Way+Oxy generator
Nano Plasma F+(A/changeove)+A/clean
Nano Plasma F+(A/changeove)+A/clean+4way
Nano Plasma F+(A/changeove)+A/clean+PTC
Nano Plasma F+(A/changeove)+Autoclean+4way+PTC
Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC
Negative ION+A/Clean
(Nano)Plasma+Negative ION+A/Clean
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean
Nano Plasma F+4Way+(A/changeove)+A/clean+
R
Mirror
W
White
B
Blue
D
Wood
M
Metal
C
Cherry
4 Room Air Conditioner
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
be followed.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■ Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
WARNING
Do not use damaged power cords, plugs, or a
loose socket.
loose socket.
Always use the power plug and socket with the
ground terminal.
ground terminal.
• There is risk of fire of electric shock.
• There is risk of electric shock.
Install the panel and the cover of control box
securely.
securely.
.Do not modify or extend the power cord.
• There is risk of fire of electric shock.
• No grounding may cause electric shock.
■ Installation