LG V-KC402CT User manual

VACUUM CLEANER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE
"SAFETY PRECAUTIONS" IN THIS MANUAL.
MODEL:V-KC402CT, V-KC402CTU, V-KC402CTQ, V-KC402CTUQ
V-KC402CTQU, V-K8501CTU, V-K8502CTU, V-C8200CTU
V-K8503CTU, VCC402CTU, V-KC442CTU

CONTENTS
-2-
SAFETY PRECAUTIONS....................................................................................3
CAUTIONS...........................................................................................................3
DESCRIPTION ....................................................................................................4
SPECIFICATION..................................................................................................4
DISPLAY LED......................................................................................................5
VOICE ALARM.....................................................................................................6
DISASSEMBLY................................................................................................7~8
TROUBLE SHOOTING GUIDE........................................................................7~9
SCHEMATIC DIAGRAM.....................................................................................10
CIRCUIT DIAGRAM...........................................................................................10
SCHEMATIC DIAGRAM.....................................................................................11
CIRCUIT DIAGRAM...........................................................................................11
EXPLODED VIEW.......................................................................................12~15
REPLACEMENT PARTS LIST.....................................................................16~17
THE TYPE OF POWER CORD .........................................................................18

SAFETY PRECAUTIONS
CAUTIONS
-3-
BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY, AND
OBSERVE EACH POINT CAREFULLY.
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT
THE ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.
1. Motor exchange
1) Separate the Body Cover and Body Base by
unfastening the screws.
2) After disconnecting the lead wires, replace the
old motor with a new one.
2. In case of exchanging other parts. refer
to the exploded view.
1. Motor filter(Air Cleaner)
1) This filter is reusable.
2) Never use the vacuum cleaner without filter.
It may damage the motor.
3) When the light of body is on, wash the motor
filter with water.
4) Even if the light is not on, wash the motor filter at
least once 6 months.
NOTE : Reusing of the motor filter.
• Never wash the filter in a washing machine or in a
dishwasher.
• Never use hot water for washing the filter.
• Reuse the filter after drying it completely in the
shade for a day.
• Do not dry near fire or direct sunray.
2. Exhaust filter(Washable HEPA filter)
1) This filter is reusable HEPA filter.
2) For clean air, theis filter must be assembled.
3) Wash the exhaust filter with water once a year.
4) When the light of body is on, wash the exhaust
filter with water.
NOTE : Reusing of the exhaust filter.
• Never wash the filter in a washing machine or in a
dishwasher.
• Never use hot water for washing the filter.
• Reuse the filter after drying it completely in the
shade for a half day.
• Do not dry near fire or direct sunray.
• Do not brush the filter. This will cause
permanently damage allowing dust to by-pass the
filter.
• Do not wash the blue side of the filter.
3. Avoid suction such materials as :
1) Liquid or wet dust :
Clogs the ventilation holes, reduces the suction
power significantly and harms the motor.
2) Inflammable liquids such as benzene, alcohol or
solvents.
3) Burning objects such as cigarette butts.
4) Bulky objects such as vinyl, paper etc.
5) Sharp objects such as needles, pins, metal,
glass particles etc.
4. Attachments
• Nozzle : for cleaning wooden floor, the room floor
and carpet.
• Crevice Tool : for cleaning any crevice, inside
corners or window frames. However, do not use
the crevice tool more than 20 minutes because it
may cause harm to the motor.
• Dusting brush : for cleaning clothes curtains.
5. Close supervision is necessary when this
vacuum cleaner is used by or near children.
Children’s carelessness may cause damage to
the cleaner or injure persons.
6. Air exhausted from the vacuum cleaner is
normally warm. But if extraordinarily hot air is
exhausted, check if the telescopic tube, hose or
clean filter is clogged or not.
7. Electric shock could occur if used outdoors or
on wet surfaces.

SPECIFICATIONS
DESCRIPTION
-4-
• MODEL : REFER TO THE COVER PAGE
• POWER SOURCE : ON RATING PLATE
• POWER CONSUMPTION : ON RATING PLATE
• POWER CONTROL :
- MAIN : PUSH ON/OFF (GRIP HANDLE)
• CORD LENGTH : 6 m
• HOSE LENGTH : 1.5 m
• NET WEIGHT : 7.5 kg
• PACKING WEIGHT : 13 kg
• NET DIMENSION : 341 x 521 x 300 (W x D x H)mm
• PACKING DIMENSION : 370 x 580 x 455 (W x D x H)mm
• ATTACHMENTS
HOSE.................................................................................1EA
TELESCOPIC PIPE ASSEMBLY.......................................1EA
NOZZLE ASSEMBLY.........................................................1EA
NOZZLE ASSEMBLY PARQUET ......................................1EA
DUSTING BRUSH..............................................................1EA
UPHOLSTERY NOZZLE....................................................1EA
CREVICE TOOL.................................................................1EA
ACCES SORY HOLDER....................................................1EA
• This specifications are subject to change according to the buyer's request.
ATTACHMENTS
•NZ-46 •NZ-43
DUSTING BRUSH UPHOLSTERY NOZZLE CREVICE TOOL ACCESSORY HOLDER
•NZ-50
Telescopic pipe Body
Cover
Dust Tank
Cord Reel
Button Power Cord
Flexible Hose Assembly

DISPLAY LED
-5-
OFF : All LEDs turn on when powering off or being in
Standby mode.
MIN : Mode that noise is weakest in minimum power
status. Use this mode at night or when
calmness is needed.
MAX : Mode to indicate maximum suction power
operation.
AUTO : Auto mode measures quantity of dust via the
dust sensor mounted in the cleaner and
automatically adjusts suction power
accordingly. If dust is discovered, the mode
becomes Max status, and if dust is removed,
the mode becomes Min status.
•Auto Mode •
Auto on
Dust detection
When operating in Auto Mode, the LED flickers if the
dust sensor detects dust.
After that operation mode change to MAX mode.
OFF
MIN
MAX
AUTO
OFF MIN
AUTO MAX
OFF
MIN
MAX
AUTO
OFF
MIN
MAX
AUTO

VOICE ALARM
-6-
1. VOICE ALARM
Voice alarm to inform operation status of the
cleaner.
•Informs operation status of the cleaner with a
speaker mounted inside of the cleaner cover.
Power On: Hello, Power on. Select desired mode.
When LED turns on: Empty dust bin, and clean
pre-filter. Please.
When cleaning stops: Stop.
MIN: Minimum mode.
MAX: Maximum mode.
AUTO: Auto mode.
2. VOICE ALARM ON/OFF(default : ON)
•To let voice alarm OFF, press "OFF" button for
three second.
•To let voice alarm ON, press "OFF" button for three
second.
Speaker
OFF
MIN
MAX
AUTO
OFF
MIN
MAX
AUTO
CAUTION
When the dust tank is full lamp( ) is on, also,
it(cleaner) makes suction power low rapidly by itself to
protect the motor after 1 and half minute.
This time full LED is still on.
Even if the dust tank does not appear to be full at this
stage, it should be cleaned.
The air filter should be cleaned at once.
Voice alarm : Empty the dust bin and clean the pre-filter.

-7-
DISASSEMBLY
•Almost all of the parts of this vacuum cleaner can be
disassembled with a screw driver and each
connecting component easily fits each other.
Disassemble one by one referring to the exploded
view.
•If possible, don't disassemble except for the
necessary parts. It is not necessary to disassemble
the parts that are not detailed in the exploded view.
1. Body Cover Assembly Replacement
1) Remove the dust tank from the set.
2) Remove the two screws fastening the deco cover.
After that remove the deco cover.
3) Remove the four screws fastening the body cover.
4) Disassemble the body cover, rasing the body
cover.
2. Motor Assembly Replacement
1) Remove the connect pipe.
NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical power
supply cord from the wall outlet.
Dust Tank

-8-
2) Remove the two screws fastening the motor
chamber.
3) Unhook the two hook.
4)
Pull out motor and disconnect the lead wires from it.
3. Disassembly of Body Base Assembly
and Cord Reel Assembly.
1) Remove the two screws fastening the motor
chamber.
2) Pull out the motor chamber.
3) Lift the cord reel assembly from the body base.

-9-
TROUBLESHOOTING
CHECKING
CHECK THE POWER
SOURCE The fuse is melt down in the
coverknife switch.
Exchange the fuse.
Poor plug insertion Insert again.
Power cord cut Repair or exchange.
Interior lead wire cut Exchange the lead wire.
Motor(stator, armature) coil
cut or damaged. Exchange the motor.
Motor armature cut. Exchange the motor.
Ball bearing defacement Exchange the motor.
Impeller hindrance
(Caused by foreign matters) Remove the foreign matters.
CAUSE SOLUTION
1. SWITCH ON BUT MOTOR DOSE NOT TURN.
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES.

-10-
Motor armature cut Exchange the motor.
Foreign matters attached to
the impeller Remove the foreign matters.
Low voltage Inquire to the power utility
company.
Hose and extension wands
are clogged with foreign
matters.
Remove the foreign matters
in the hose or extension
wands.
Filter bag or cloth bag is filled
with inhaled foreign matters.
Remove the foreign matters
or exchange the filter bag
or clean the cloth bag.
The slide knob on the handle
is opened. Close the slide knob by sliding it.
Poor connection Repair.
Low rotation speed
Motor turns normally,
but suction power is weak.
3. SWITCH OFF BUT MOTOR TURNS
4. WEAK SUCTION POWER

-11-
Loose parts Secure firmly.
Unbalanced motor assembly Exchange or repair the motor.
Foreign matters are attached
to the impeller. Remove the foreign matters.
Poor cord, lead wire Exchange cord, lead wire.
Poor electric connector
or receiver Repair the electric connector
or receiver.
Poor capacitor Exchange the capacitor.
Bent connection parts Exchange the parts.
Poor connection
(Caused by foreign matters) Remove the foreign matters and reconnect.
Armature is cut or foreign
matters attached. Exchange the motor Remove foreign matters.
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER TUBE OF NOZZLE CONNECTION

-12-
SCHEMATIC DIAGRAM
MAIN PWB ASM
Auxiliary PWB ASM
MOTOR
CORDREEL
ASSEMBLY DISPLAY PWB ASM
Dust Sensor
Dust
Sensor
Pressure S/W
Speaker
HOSE
PWB ASM
T/P

SCHEMATIC DIAGRAM
-13-

-14-
EXPLODED VIEW
BASE ASS'Y, BODY
168711
335404
135515
235505
445101
135516
149702
252311
235504
140361
146811
136611
146871
130401
136501
146611
144411
166311
366011
140400
252303
139201
135506
140363
152001
139206
139202
135513

-15-
235507
235506
235509
268712
235517
166312
235501
268715
169000
368011
250204
249701
235508
235518
239202
268714
435506
COVER ASS'Y, BODY

-16-
TANK ASS'Y, DUST
750062
239203
739204
749704
740261
650800
335513
335508
140364
748393
750063
140365
748382
749701
340261
175261
533001

-17-
652012
650581652031 449301652481
552491 552495 552493
452153
HOSE ASS'Y, FIEXIBLE

-18-
REPLACEMENT PARTS LIST
LOCATION No. DESCRIPTION P/No REMARK
130401 BASE BODY REFER TO APPENDIX
135515 COVER, BACK REFER TO APPENDIX
335404 COVER, TOP REFER TO APPENDIX
135506 COVER, MOTOR HOUSING 3550FI1891A
136611 HOUSING, MOTOR 3660FI1253A
152001 PIPE, CONNECTOR 5200FI2543A
235504 COVER, EXHAUST FILTER REFER TO APPENDIX
235505 COVER, EXHAUST FILTER REFER TO APPENDIX
135516 COVER, LEVER REFER TO APPENDIX
445101 LEVER, RELEASE REFER TO APPENDIX
146611 WHEEL, ASS'Y 4661FI2424A
4661FI2424B(LFS)
136501 HANDLE, CARRIER REFER TO APPENDIX
366011 SWITCH, PRESSURE 6601FI3488B
249011 DAMPER 4901FI2001F
252311 FILTER ASSEMBLY, EXHAUST 5231FI2508C
252303 FILTER ASEMBLY,PRE 5231FI3806A
140361 SEALER 4036FI3725A
140363 SEALER 4036FI3720A
168711 PWB ASSEMBLY REFER TO APPENDIX
166311 CONNECTOR ASSEMBLY 6877FI3082G
140400 SPEAKER 6401FI1001B
139206 PACKING, SEAL 3920FI3930A
149702 SPRING 4970FI4719G
146871 CORDREEL ASSEMBLY REFER TO APPENDIX
144411 CASTER ASSEMBLY 4441FI3616A
139201 PACKING, DUST SEAL 3920FI2430A
235508 COVER, DECO 3550FI3945A
235518 COVER, DECO REFER TO APPENDIX
235517 COVER, DECO REFER TO APPENDIX
135513 COVER ASSEMBLY,MOTOR 3551FI3745A
146811 MOTOR ASSEMBLY,VC REFER TO APPENDIX
139202 PACKING,MOTOR MOUNTING 3920FI4746B
235501 COVER, BODY REFER TO APPENDIX
235507 COVER, DECO REFER TO APPENDIX
250204 BUTTON, CORDREEL REFER TO APPENDIX
269000 PIPE, CONNECTOR 5200FI1237A
235506 COVER, DISPLAY 3550FI3943A
235509 COVER, DECO 3550FI3944A
268712 PCB(LED) 6871FX3129A
435506 COVER, TERMINAL 3550FI3802A
239202 PACKING, SEAL 3920FI3932A
249701 SPRING, BUTTON 4970FI4728A
268714 PWB ASSEMBLY, SENSOR 6871FX3077B
268715 PWB ASSEMBLY, SENSOR 6871FX3077F
368011 TERMINAL ASSEMBLY 6631FI3168A
166312 CONNECTOR ASSEMBLY 6877FI3082G

-19-
REPLACEMENT PARTS LIST
LOCATION No. DESCRIPTION P/No REMARK
748382 TANK, CYCLONE 4838FI1425A
750063 CAP, DUST 5006FI1342A
335508 COVER, DUST 3550FI1893A
335513 COVER, DECO REFER TO APPENDIX
533001 BOTTOM, PLATE REFER TO APPENDIX
740261 LATCH 4026FI3712A
340261 LATCH 4026FI3713A
239203 LATCH 4026FI3716A
650800 SHIELD, INNER REFER TO APPENDIX
750062 CAP, HANDLE 5006FI3718A
739204 HANDLE, CARRIER REFER TO APPENDIX
749703 SPRING 4970FI3217A
749701 SPRING 4970FI4260E
140364 SEALER 4036FI3722A
140365 SEALER 4036FI3723A
175261 SEALER 4036FI3724A
552491 NOZZLE ASSEMBLY,FLOOR REFER TO APPENDIX
552495 NOZZLE ASSEMBLY,TURBIN REFER TO APPENDIX
452153 HOSE ASSEMBLY,FLEXIBLE REFER TO APPENDIX
652012 PIPE ASSEMBLY,TELESCOPIC REFER TO APPENDIX
449301 ACCESSORY HOLDER REFER TO APPENDIX
650581 TOOL,CREVICE REFER TO APPENDIX
652031 BRUSH ASSEMBLY,DUST REFER TO APPENDIX
652481 NOZZLE,UPHOLSTERY REFER TO APPENDIX
552493 NOZZLE ASSEMBLY,FLOOR REFER TO APPENDIX

-20-
APPENDIX
1. THE TYPE OF POWER CORD & PARTS NUMBER
17
12.7
17
6.3
19
19
4.8
19
4
Type Type of plug
Cord Reel ASS'Y P/No.
(L/No. : 146871)
A - 1
4687FI1494E
4687FI1494D
4687FI1494L
4687FI1494P
S - 1
C - 1
B - 3
C - 2
Brown 13A
Yellow 5A
Color identification of
fuse