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3 Troubleshooting Guide
CONDITION
Motor fails to rotate
(no noise is heard at all)
Motor runs but there is no suction
Noise or vibration
The motor output cannot be
changed.
(The motor rotation does not
change.)
(The motor always rotates at full
speed.)
CHECK POINT
Power supply cord
Fuse of P.C.B. Ass'y
(250V, 10A)
Motor continuity
ON/OFF Switch
P.C.B. Ass'y
Hose or Suction inlet, Extension
wand and nozzle
Dust bog / Secondary filter
Motor fan
Output controller
P.C.B. ass'y
METHOD OF INSPECTION
Check power supply cord continu-
ity.
Check fuse continuity.
Check the conduction between the
terminals of the motor.
Check continuity across switch
connections
Check the internal parts for any-
thing unusual. (burn-out, melt-
down, etc.)
Check whether or not the specified
components are clogged with for-
eign substances.
Check if dust bag is full or Second-
ary filter is choked up.
Check dust accumulated in motor
fan (it could happen if the vacuum
cleaner has been used without cen-
tral filter).
Adjust the output controller and
check whether or not the resistance
varies.
Check whether or not T1 and T2 of
the Triac on the P.C.B. ass'y are
short-circuited.
5
TRANSACTION
If there is no continuity, replace the
cord reel patition unit.
If there is no continuity, replace
P.C.B. Ass'y.
If there is no continuity, replace the
or motor.
If there is no continuity, replace
P.C.B. Ass'y.
If anything is found unusual,
replace the P.C.B. assembly with
new one.
If there is any blockage, remove it.
If dust bag is foll, replace with a
new one. If Secondary filter is
choked up, remove and clean it out
or replace.
If there is dust accumulated in the
motor fan, replace the motor and
check filter condition. (never try to
dismantle the motor fan)
If the resistance value does not
change, then replace the P.C.B.
ass'y.
If they are short-circuited, then
replace the P.C.B. ass'y.
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