LG V-C3844RD Service Manual ▷ View online
SOLUTION
CAUSE
Check the power source
CHECKING
Poor plug insertion
Power cord cut
Interior lead wire cut
Motor(stator armature) coil cut
or damaged
or damaged
Poor contact carbon brush
defaced
defaced
Motor armature cut
Ball bearing defacement
Impeller hindrance
(Caused by foreign matters)
(Caused by foreign matters)
Insert again
The fuse is melt down
in the coverknife switch
in the coverknife switch
Exchange the fuse
Repair or exchange
Exchange the lead wire
Exchange the motor
Exchange or repair
Poor switch contact point
Exchange the switch
Exchange the motor
Exchange the motor
Remove the foreign matters
Normal
Abnormal
-8-
TROUBLE SHOOTING GUIDE
1. SWITCH ON BUT MOTOR DOSE NOT RUN.
3828Fi5865A
2. SWITCH ON, MOTOR DOES NOT RUN BUT BUZZES.
3828Fi5865A
Poor connection
Poor switch
Carbon brush defaced
Motor armature cut
Foreign matters attached to
the impeller
the impeller
Low voltage
Hose and extension wands are
clogged with foreign matters
clogged with foreign matters
Filter bag or cloth bag is filled
with inhaled foreign matters
with inhaled foreign matters
Repair
Exchange the switch
Exchange the carbon brush
or the motor
or the motor
Exchange the motor
Remove the foreign matters
Inquire to the power utility
company
company
Remove the foreign matters
in the hose or extension wands
in the hose or extension wands
Low rotation speed
Motor turns normally,
but suction power is weak
but suction power is weak
Rotating switch is on low
mode
mode
Rotate it with clock-wise so
power is increasd
power is increasd
Remove the foreign matters
or exchange the filter bag or
clean the cloth bag
or exchange the filter bag or
clean the cloth bag
-9-
3. SWITCH OFF BUT MOTOR RUNS.
4. WEAK SUCTION POWER
3828Fi5865A
-10-
Poor cord, lead wire
Poor carbon brush rectified
Poor electric connector
or receiver
or receiver
Exchange cord, lead wire
Exchange the carbon brush
or the motor
or the motor
Repair the electric connector
or receiver
or receiver
Poor capacitor
Exchange the capacitor
Bent connection parts
Poor connection
(Caused by foreign matters)
(Caused by foreign matters)
Exchange the parts
Remove the foreign matters
and reconnect
and reconnect
Loose parts
Unbalanced motor assembly
Foreign matters are attached
to the impeller
to the impeller
Poor carbon brush rectification
Secure firmly
Exchange or repair the motor
Remove the foreign matters
Exchange the carbon brush
or the motor
or the motor
Armature is cut or foreign
matters attached
matters attached
Exchange motor
Remove foreign matters
Remove foreign matters
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER TUBE OR NOZZLE CONNECTION
3828Fi5865A
-10-
Poor cord, lead wire
Poor carbon brush rectified
Poor electric connector
or receiver
or receiver
Exchange cord, lead wire
Exchange the carbon brush
or the motor
or the motor
Repair the electric connector
or receiver
or receiver
Poor capacitor
Exchange the capacitor
Bent connection parts
Poor connection
(Caused by foreign matters)
(Caused by foreign matters)
Exchange the parts
Remove the foreign matters
and reconnect
and reconnect
Loose parts
Unbalanced motor assembly
Foreign matters are attached
to the impeller
to the impeller
Poor carbon brush rectification
Secure firmly
Exchange or repair the motor
Remove the foreign matters
Exchange the carbon brush
or the motor
or the motor
Armature is cut or foreign
matters attached
matters attached
Exchange motor
Remove foreign matters
Remove foreign matters
5. VIBRATION NOISES
6. RADIO, TV RECEPTION DISTURBANCE
7. IMPROPER TUBE OR NOZZLE CONNECTION