DOWNLOAD LG LWC1260ACG Service Manual ↓ Size: 3.43 MB | Pages: 127 in PDF or view online for FREE

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

LG LWC1260ACG Service Manual ▷ View online

3H02153X
8
-
• MODEL: LW-B0961CL
S : Standand Parts
O : Non Service Parts 
LOCATION NO.
No.
DESCRIPTION
PART No.
Q'TY
REMARKS
130410
152380
349001
349600
346811
359012
149980
559011
W48602
149750
354210
554030
435300
554170
550140
548100
W1NHA
554160
268770
567502
W1NZZ
W1NFZ
35211A
352117
552111
3041AR2306E
5239AR3398A
4900AR3324A
4960AR2220A
4681AR2307E
5834AR1168A
4998AR1163A
5900AR1167A
3H02932B
5239AR3401A
3550AR2334A
5421AR2308A
5403AR2312A
3530AR2332B
5417AR2380D
4H00982C
4810AR4155A
1NHA0801206
5416AR2379D
4986U-L001B
3H03216H
6750U-L013A
4970U-L002A
3550U-L002D
4H01058A
4H00947A
5210AR2313A
5211AR2309A
5210AR2311A
5211AR3399A
5424AR3548A
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
S
S
O
S
S
S
S
S
S
S
S
S
S
S
O
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
BASE ASSY, SINGLE
AIR GUIDE
DAMPER, VENTILATION
MOUNT, MOTOR 
MOTOR ASSY, AC
FAN ASSY, BLOWER
SHROUD
FAN ASSY, AXIAL
CLAMP SPRING
GUIDE ASSY, UPPER 
COVER
EVAPORATOR ASSY
CONDENSER ASSY
GRILLE REAR 
COMPRESSOR ASSY
ISOLATOR, COMP
BRACKET, WASHER
NUT HEXAGON  
COMPRESSOR
GASKET
LEAD WIRE ASSY
O.L.P
SPRING, O.L.P
TERMINAL COVER
NUT
TERMINAL COVER NUT
PIPE
TUBE DISCHARGE
TUBE ASSY, SUCTION, SINGLE
TUBE, FORMED
TUBE ASSY, FORMED, COND
TUBE ASSY, CAPILLARY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
15
16
17
18
19
20
21
22
23
24
25
B
26
27
28
29
30
3H02153X
9
-
S : Standand Parts
O : Non Service Parts 
LOCATION NO.
No.
DESCRIPTION
PART No.
Q'TY
REMARKS
249940
237200
238310
W0CZZ
264110
261704
268714
268712
130910
135312
152302
135313
147581
159902
4995AR2443*
4994AR1166B
3720AR2199A
3831AR1292B
6120AR2194A
2H01580T
2H01159L
3H02255E
6171AQ3075A
6871AQ2184C
6871AQ3073B
-
-
3091AR2317B
3531AR2316A
3530AR1164A
5230AR2246A
3530AR1165A
4758AR3330A
5990AR2250A
1
1
1
1
1
1
1
1
1
1
1
-
-
1
1
1
1
1
1
1
S
S
S
S
S
S
S
S
S
S
S
S
S
O
O
O
O
O
CONTROL BOX ASSY
CONTROL BOX, SINGLE
PANEL CONTROL
ESCUTCHEON
CAPACITOR
POWER CORD ASSY
TRANSFORMER, POWER
PWB(PCB) ASSY, MAIN
PWB(PCB) ASSY, DISPLAY
PTC ASSY
BRACKET
CABINET ASSY, SINGLE
GRILLE ASSY, FRONT 
GRILLE FRONT 
FILTER(MECH), A/C
GRILLE ASSY, INLET
LOUVER, HORIZONTAL
VANE, VERTICAL
C-2
46
47
48
49
50
51
52
53
54
55
40
D
41
42
43
44
45
CONTENTS 
1. PREFACE
This SERVICE MANUAL provides various service information, 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. PREFACE 
1.1 SAFETY PRECAUTIONS
1.2 INSULATION RESISTANCE TEST
2
1.3 SPECIFICATIONS 
3
1.4 FEATURES
5
1.5 CONTROL LOCATIONS
5
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS
7
2.1.1 FRONT GRILLE
7
2.1.2 CABINET
7
2.1.3 CONTROL BOX
7
2.2 AIR HANDLING PARTS
8
2.2.1 AIR GUIDE
8
2.2.2 BLOWER
8
2.2.3 FAN, SHROUD
9
2.3 ELECTRICAL PARTS
9
2.3.1 OVERLOAD PROTECTOR
9
2.3.2 COMPRESSOR
9
2.3.3 CAPACITOR
10
2.3.4 POWER CORD
10
2.3.5 THERMOSTAT
10
2.3.6 ROTARY SWITCH
10
2.3.7 MOTOR
11
2.4 REFRIGERATING CYCLE
11
2.4.1 CONDENSER
11
2.4.2 EVAPORATOR
11
2.4.3 CAPILLARY TUBE
12
3. TROUBLE SHOOTING GUIDE
3.1 OUTSIDE DIMENSIONS
14
3.2 PIPING SYSTEM
14
3.3 TROUBLE SHOOTING GUIDE
16
4. SCHEMATIC DIAGRAM 
4.1 CIRCUIT DIAGRAM
21
4.2 ELECTRONIC CONTROL DEVICE
24
4.3 COMPONENTS LOCATION 
(OF MAIN P.C.B ASM)
25
4.4 COMPONENTS LOCATION
(FOR DISPLAY P.C.B ASM)
25
5. EXPLODED VIEW 
26
6. SVC PARTS LIST 
27
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 & yellow) should
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
.
—2—
2. DISASSEMBLY INSTRUCTIONS
– Before disassembling, turn the POWER SWITCH to OFF and disconnect the power cord.
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Open the INLET GRILLE upward and remove the
air filter.
2. Remove the screw which fastens the FRONT
GRILLE.
3. Pull the FRONT GRILLE from the right side.
4. Remove the FRONT GRILLE.
5. Re-install the components by referring to the
above removal procedure. (See figure 1)
2.1.2 CABINET
1. After disassembling the FRONT GRILLE, remove
the two screws which fasten the CABINET at both
sides.
2. Remove the two screws which fasten the CABI-
NET at back.
3. Pull the BASE PAN forward. (See figure 2)
2.1.3 CONTROL BOX
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the 3 screws which fasten the CON-
TROL BOX.
3. Pull the CONTROL BOX forward about 10-15cm.
4. Discharge the CAPACITOR by placing a 20,000
ohm resistor across the capacitor terminals.
5. Remove two wire housings in the control box.
6. Pull the control box forward completely.
7. Re-install the components by referring to the
above removal procedure. (See figure 3)
(Refer to the CIRCUIT DIAGRAM found on pages
22 and 23 in this manual and on the control box.)
—7—
THERMOST
AT
OPERA
TION
THERMOST
AT
OPERA
TION
O
Figure 1
Figure 2
Figure 3
Page of 127
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