LG V-C3A54SD Service Manual ▷ View online
Checking
Cause
Solution
Check the power
source
source
The fuse is melt down in the
coverknife switch
Poor plug insertion
Power cord cut
Motor(stator armature) coil
cut or damaged
Poor contact carbon
brush defaced
Poor switch contact point
Motor armature cut
Ball bearing defacement
Impeller hindrance
(Caused by foreign matters)
Exchange the motor
Exchange the motor
Remove the foreign
matters
Exchange the fuse
Insert again
Repair or exchange
Interior lead wire cut
Exchange the lead wire
Exchange the motor
Exchange or repair
Exchange the switch
Normal
Abnormal
8
TROUBLE SHOOTING GUIDE
1. SWITCH ON BUT MOTOR DOES NOT TURN
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES
Poor connection
Poor switch
Repair
Exchange the switch
Carbon brush defaced
Motor armature cut
Exchange the carbon brush
or the motor
Exchange the motor
Foreign matters attached to
the impeller
Remove the foreign
matters
matters
Low voltage
Inquire to the Power utility
company
company
Low rotation speed
Hose and extension wands
are clogged with foreign
matters
are clogged with foreign
matters
Remove the foreign
matters in the hose or
extension wands
matters in the hose or
extension wands
Motor turns normally,
but suction power is
weak
Filter bag or cloth bag is filled
with inhaled foreign matters
with inhaled foreign matters
The slide knob on the handle
is opened
is opened
Remove the foreign
matters or exchange the
filter bag or clean the cloth
bag
matters or exchange the
filter bag or clean the cloth
bag
Close the slide knob by
sliding it
sliding it
9
3. SWITCH OFF BUT MOTOR TURNS
4. WEAK SUCTION POWER
Loose parts
Unbalanced motor assembly
Foreign matters are attach to
the impeller
Poor carbon brush rectification
Armature is cut or foreign matters
attached
Secure firmly
Exchange or repair the motor
Remove the foreign matters
Exchange the carbon brush or
the motor
Exchange motor
Remove foreign matters
Poor cord, lead wire
Poor carbon brush rectified
Poor electric connector or
receiver
Poor capacitor
Exchange cord, lead wire
Exchange the carbon brush
or the motor
Repair the electric connector or
receiver
Exchange the capacitor
Bent connection parts
Poor connection
(Caused by foreign matters)
Exchange the parts
Remove the foreign matters
and reconnect
10
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER TUBE OR NOZZLE CONNECTION
MOTOR
BL
BR
BR
BR
S/W
P.W.B
CORD
REEL
ASM
BL
PLUG
BL
TS
BR:BROWN
BL:BLUE
BL
BR
BR
BR
S/W
CORD
REEL
ASM
PLUG
M
TS
BL
BR:BROWN
BL:BLUE
R5
VR1
VR2
C3
R10
3.9K
1/2W
3.9K
1/2W
SLIDE VOLUME
C1
0.47uF
250V
0.47uF
250V
R2
33
1/2W
33
1/2W
R4
33
1/2W
DIAC
TRIAC
G
T2
T1
C2
0.1uF
250V
0.1uF
250V
R1
100
1/2W
100
1/2W
S/W
TS
P.W.B
TS
11
BLOCK DIAGRAM
(V-CP643SD/ST)
SCHEMATIC DIAGRAM
(V-CP643SD/ST)
PRINTED CIRCUIT DIAGRAM
(V-CP643SD/ST)
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