LWC1260ACG — LG Air Conditioner Service Manual (repair manual)

Model
LWC1260ACG
Pages
127
Size
3.43 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lwc1260acg.zip
Date

View LG LWC1260ACG Service Manual online

Room Air Conditioner
SERVICE MANUAL
MODEL: LW-C1039CL
LW-C1239CL
LWC1010ACL LWC1010MCL
LWC1030ACL LWC1030PCL
LWC1030BCL LWC1030NCL
LWC1210ACL LWC1210MCL
LWC1230ACL LWC1230PCL
LWC1230BCL LWC1230NCL
LWC1260ACL LWC1260PCL
LWC1260BCL
LWC1030DCL LWC1230DCL
LWC1030DCG LWC1230DCG
LWC1010ACG LWC1010MCG
LWC1030ACG LWC1030PCG
LWC1030BCG LWC1030NCG
LWC1210ACG LWC1210MCG
LWC1230ACG LWC1230PCG
LWC1230BCG LWC1230NCG
LWC1260ACG LWC1260PCG
LWC1260BCG
CAUTION
- BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.
- ONLY FOR AUTHORIZED SERVICE PERSONNEL.
—10—
FAN SPEED
MODE
SLEEP
TEMP
POWER
FAN
COOL
ON
ON
OFF
AUTO RESTART
R
2
3
1
6
3
2
1
5
4
7
4
5
VELOCICAD
MODO
AUTO
APAGADO
TEMP
ENCENDIDO
VENTILACION FRIO
ENCENDIDO
SI
NO
RE-INCIO
AUTOMATICO
R
2
3
1
6
7
4
5
1.5.3 COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH TYPE
POWER BUTTON
Operation starts, when this button is pressed and stops when you press the button again.
OPERATION MODE SELECTION BUTTON
Select Cooling, or Fan mode with this button.
OFF TIMER BUTTON
Set the time of stopping operation. Timer is set as follows. 
(1 hour 
➔ 
2hours 
➔ 
3hours 
➔ 
4hours 
➔ 
6hours 
➔ 
8hours 
➔ 
10houurs 
➔ 
12hours 
➔ 
cancel)
FAN SPEED SELECTOR
Select the fan speed in two steps (Low or High).
ROOM TEMPERATURE SETTING BUTTON
Control the room temperature within a range of 16°C to 30°C. 
AUTO RESTART SWITCH (NOT TO ALL MODELS)
In failure of electric power, if the switch is set to "ON", the unit runs as previous setting operation when power
returns.
SIGNAL RECEIVER
6
6
7
7
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
REMOTE CONTROL
DISPLAY
—11—
POWER BUTTON
Operation starts, when this button is pressed and stops when you press the button again.
OPERATION MODE SELECTION BUTTON
Select Cooling, or Fan or Dehumid mode with button. (Dehumid mode is not to all models.)
ON/OFF TIMER BUTTON
Set the time of starting and stopping operation. The timer is set by 1 hour.
FAN SPEED SELECTOR
Select the fan speed in two steps (Low or High).
ROOM TEMPERATURE SETTING BUTTON
Control the room temperature within a range of 16°C to 30°C. 
AUTO RESTART SWITCH (NOT TO ALL MODELS)
In failure of electric power, if the switch is set to "ON", the unit runs as previous setting operation when power returns.
SIGNAL RECEIVER
6
6
7
7
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
REMOTE CONTROL
DISPLAY
Fan Speed
Mode
Sleep
Temp
Fan Cool
On
On
Auto Restart
Off
Power
3
2
1
5
4
2
3
1
6
7
4
5
Velocidade
Mode
Auto
Desliga
Temp
Ventilador Frio
Liga
Liga
Auto Restart
Desliga
Power
2
3
1
6
7
4
5
Velocidad
Mode
Auto
Apagado
Temp
Ventilacion Frio
Deshumedad
Encendido
Si
Re-inicio
Automatico
No
Encendido
2
3
1
6
7
4
5
—2—
1. PREFACE
1.1 SAFETY PRECAUTIONS................................2
1.2 INSULATION RESISTANCE TEST .................2
1.3 SPECIFICATIONS...........................................3
1.4 FEATURES......................................................7
1.5 CONTROL LOCATIONS .................................7
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS ..................................12
2.1.1 FRONT GRILLE ...................................12
2.1.2 CABINET ..............................................12
2.1.3 CONTROL BOX ...................................12
2.2 AIR HANDLING PARTS ................................13
2.2.1 AIR GUIDE AND BLOWER ..................13
2.2.2 FAN ......................................................13
2.2.3 SHROUD ..............................................14
2.3 ELECTRICAL PARTS....................................14
2.3.1 OVERLOAD PROTECTOR ..................14
2.3.2 COMPRESSOR....................................14
2.3.3 CAPACITOR.........................................15
2.3.4 POWER CORD ....................................15
2.3.5 THERMOSTAT .....................................15
2.3.6 ROTARY SWITCH ...............................15
2.3.7 MOTOR ................................................16
2.4 REFRIGERATING CYCLE ............................16
2.4.1 CONDENSER.......................................16
2.4.2 EVAPORATOR.....................................16
2.4.3 CAPILLARY TUBE ...............................17
3. INSTALLATION
3.1 SELECT THE BEST LOCATION...................19
3.2 CHECK OF INSTALLATION..........................19
3.3 HOW TO DRAIN............................................19
3.4 HOW TO INSTALL ........................................20
4. TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS ...............................22
4.2 PIPING SYSTEM...........................................22
4.3 TROUBLESHOOTING GUIDE ......................23
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM ......................................33
5.2 ELECTRONIC CONTROL DEVICE...............38
5.3 COMPONENTS LOCATION (FOR MAIN P.C.B ASM)......40
5.4 COMPONENTS LOCATION (FOR DISPLAY P.C.B ASM)  ....40
6. EXPLODED VIEW
..................................41
7. REPLACEMENT PARTS LIST
........42
1. PREFACE
This 
SERVICE MANUAL
provides various service information, including the mechanical and electrical
parts etc. This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.
1.1 SAFETY PRECAUTIONS
1. When servicing the unit, set the ROTARY SWITCH
or POWER SWITCH to OFF and unplug the power
cord.
2. Observe the original lead dress.
If a short circuit is found, replace all parts which
have been overheated or damaged by the short
circuit.
3. After servicing the unit, make an insulation resis-
tance test to protect the customer from being
exposed to shock hazards.
1.2 INSULATION RESISTANCE TEST
1. Unplug the power cord and connect a jumper
between 2 pins (black and white).
2. The grounding conductor (green) is to be open.
3. Measure the resistance value with an ohm meter
between the jumpered lead and each exposed
metallic part on the equipment at all the positions
(except OFF) of the ROTARY SWITCH.
4. The value should be over 1M
.
CONTENTS
—3—
POWER SUPPLY
COOLING CAPACITY
(Btu/h)
INPUT
(W)
RUNNING CURRENT
(A)
E.E.R
(BTU/W.h)
INDOOR
(°C)
OUTDOOR (°C)
REFRIGERANT (R-22) CHARGE
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR 
COMPRESSOR
FAN MOTOR          
POWER CORD
DRAIN SYSTEM
NET WEIGHT
(lbs/kg)
OUTSIDE DIMENSION
(inch)
(W 
D)  
(mm)
10,000
12,000
1,050
1,260
9.5
11.5
9.5
26.7(DB)*
19.4(WB)**
35(DB)*
23.9(WB)**
490g (17.3 Oz)
480g (17 Oz)
2 ROW 16 STACKS, SLIT-FIN TYPE
2 ROW 13 STACKS, LOUVERED-FIN TYPE
2 ROW 17 STACKS, LOUVERED-FIN TYPE
BLOWER
PROPELLER TYPE FAN WITH SLINGER-RING
2/3
2/2
2/3
2/2
6 POLES
ROTARY SWITCH
THERMOSTAT
VERTICAL LOUVER (RIGHT & LEFT)
HORIZONTAL LOUVER (UP & DOWN)
SLIDE IN-OUT CHASSIS
OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
1.8m(7") (3 WIRE WITH GROUDING)
ATTACHMENT PLUG (CORD-CONNECTED TYPE)
DRAIN PIPE OR SPLASHED BY FAN SLINGER
90/41
95/43
23
5
/
8
x 14
31
/
32 
x 21
7
/
8
600 x 380 x 555
1ø, 115, 60Hz
LWC1010ACL
LWC1010MCL
LWC1210ACL
LWC1210PCL
LWC1010ACG
LWC1010MCG
LWC1210ACG
LWC1210PCG
MODELS
ITEMS
OPERATING
CONDITION
1.3 SPECIFICATIONS
1.3.1 FOR LWC1010ACL, LWC1010MCL, LWC1210ACL, LWC1210PCL
LWC1010ACG, LWC1010MCG, LWC1210ACG, LWC1210PCG
* DB:Dry Bulb
** WB:Wet Bulb

Download LG LWC1260ACG Service Manual (Repair Manual)

Here you can view online or download LG LWC1260ACG Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair LG LWC1260ACG Air Conditioner. Information contained in LG LWC1260ACG service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).