LG V-9144WA Service Manual ▷ View online
TROUBLE SHOOTING
-7-
1. SWITCH ON BUT MOTOR DOES NOT RUN
Checking
Cause
Solution
2. SWITCH ON, MOTOR DOES NOT RUN BUT BUZZES
Check the power
source.
source.
Poor plug insertion
Power cord cut
Interior lead wire cut
Motor(stator armature)
coil cut or damaged
coil cut or damaged
Poor contact carbon
brush defaced
brush defaced
Poor switch contact point
Insert again
Repair or exchange
Exchange the lead wire
Exchange the motor
Exchange or repair
Exchange the switch
Motor armature cut
Exchange the motor
Exchange the motor
Remove the foreign
matters
matters
Ball bearing defacement
Impeller hindrance
(Caused by foreign matters)
(Caused by foreign matters)
-8-
3. SWITCH OFF BUT MOTOR RUNS
4. WEAK SUCTION POWER
5. SWITCH ON BUT PUMP DOES NOT OPERATE
Poor connection
Repair
Exchange the switch
Poor switch
Poor connection
Repair
Exchange pump
No-pumping
Motor runs normally,
but suction power is
weak.
but suction power is
weak.
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
Remove the foreign matters
or exchange the filter bag
or clean the cloth bag
or exchange the filter bag
or clean the cloth bag
Filter bag or cloth bag is
filled with inhaled foreign
matters
filled with inhaled foreign
matters
Low rotation speed
Motor armature cut
Carbon brush defaced
Exchange the carbon
brush or the motor
brush or the motor
Exchange the motor
Remove the foreign
matters
matters
Inquire to the Power utility
company
company
Foreign matters attached
to the impeller
to the impeller
Low voltage
-9-
6. VIBRATION NOISES
7. RADIO, TV RECEPTION DISTURBANCE
8. IMPROPER HOSE OR NOZZLE CONNECTION
Loose parts
Secure firmly
Exchange or repair
the motor
the motor
Remove the foreign
matters
matters
Exchange the carbon
brush or the motor
brush or the motor
Exchange motor
Remove foreign matters
Remove foreign matters
Unbalanced motor
assembly
assembly
Foreign matters are attach
to the impeller
to the impeller
Poor carbon brush
rectification
rectification
Armature is cut or foreign
matters attached
matters attached
Poor cord, lead wire
Exchange cord, lead wire
Exchange the carbon
brush or the motor
brush or the motor
Repair the electric
connector or receiver
connector or receiver
Exchange the capacitor
Poor carbon brush
rectified
rectified
Poor electric connector or
receiver
receiver
Poor capacitor
Bent connection parts
Exchange the parts
Remove the foreign matters
and reconnect
and reconnect
Poor connection
(Caused by foreign matters)
(Caused by foreign matters)
-9-
6. VIBRATION NOISES
7. RADIO, TV RECEPTION DISTURBANCE
8. IMPROPER HOSE OR NOZZLE CONNECTION
Loose parts
Secure firmly
Exchange or repair
the motor
the motor
Remove the foreign
matters
matters
Exchange the carbon
brush or the motor
brush or the motor
Exchange motor
Remove foreign matters
Remove foreign matters
Unbalanced motor
assembly
assembly
Foreign matters are attach
to the impeller
to the impeller
Poor carbon brush
rectification
rectification
Armature is cut or foreign
matters attached
matters attached
Poor cord, lead wire
Exchange cord, lead wire
Exchange the carbon
brush or the motor
brush or the motor
Repair the electric
connector or receiver
connector or receiver
Exchange the capacitor
Poor carbon brush
rectified
rectified
Poor electric connector or
receiver
receiver
Poor capacitor
Bent connection parts
Exchange the parts
Remove the foreign matters
and reconnect
and reconnect
Poor connection
(Caused by foreign matters)
(Caused by foreign matters)