LG V-CA251NTB, Service Manual

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Carbon brush defaced
Exchange the carbon brush
or the motor.
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.
The slide knob on the handle is
opened or the control knob is
located on weak position.
Close the slide knob by sliding it.
Regulate the knob.
The motor filter is clogged. Clean the motor filter.
The exhaust filter is clogged. Exchange the exhaust filter.
Poor connection
Repair the slide volume of hose
or triac of PWB assembly
Poor switch
(NT**/NE**)
Low rotation speed
Motor turns normally,
but suction power is weak.
Exchange the switch.
3. SWITCH OFF BUT MOTOR TURNS
4. WEAK SUCTION POWER
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