LG VC73 series, Service Manual

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3. SWITCH OFF BUT MOTOR TURNS
4. WEAK SUCTION POWER
Hose and extension wands
are clogged with foreign
matters Remove the foreign matters
in the hose or extension
wands
Motor safety filter, air filter or
exhaust filter are filled with
inhaled foreign matter
Motor turns normally,
but suction power is weak.
Remove the foreign matters or
clean motor safety filter, air
filter or exhaust filter
The regulator on the handle
is opened Close the slide knob by
sliding it
Poor switch Exchange the switch
Poor connection
Repair the slide volume of hose
or triac of PWB assembly
Motor armature cut
Low rotation speed
Exchange the motor
Foreign matters attached to
the impeller
Remove the foreign matters
Low voltage
Inquire to the power utility
company