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3 Troubleshooting Guide
CONDITION
Motor does not rotate.
Motor runs, but there is no suction. Paper dust bag, dust box, second-
Excessive vibration, excessive
noise
Motor power (suction power) does
not change.
CHECKPOINT
Power supply cord
Fuse (250V, 10A)
(above PCB)
Motor unit
ON/OFF switch
Printed circuit board (PCB) AU
Triac
(inside the printed circuit board AU)
ary filter
Hose, extension wand, floor nozzle Check if there are any blockages.
Motor unit
Printed control board (PCB) AU
METHOD OF INSPECTION
Check power supply cord continu-
ity. Check cord reel U electrical con-
tinuity.
Check for fuse meltdown.
Visual meltdown inspection:
• Investigate the cause of the
meltdown
1. Burnt-out motor, coil short
circuit
2. Lead wire short circuit (short)
3. Burnt printed circuit board
(PCB)
Check electrical continuity between
motor unit terminals.
Turn the switch on and off to check
electrical continuity
Check that there are no internal
part abnormalities (burnt, melted,
split, etc.).
Perform the following examination
and check the triac.
Check if the paper dust bag or the
dust box is full of waste.
Is there some blockage in the sec-
ondary filter?
Check if dust has accumulated in
the motor unit.
(Dust and waste can enter the
motor unit if there is no secondary
filter.)
Turn the power control knob and
check if the suction power can be
changed.
4
CAUSE / REMEDY
If there is no continuity, replace
cord reel U.
If there has been a meltdown,
remove the problem fuse and
replace the PCB AU.
If there is no electrical continuity,
replace the motor unit.
If there is any abnormality, replace
the PCB AU.
If there is any abnormality, replace
the PCB AU.
If there is any abnormality, replace
the PCB AU.
If the paper dust bag is full, replace
it with a new one.
If the dust box or the secondary fil-
ter is full of waste or there is a
waste blockage, throw out the
waste and clean.
If there is a blockage, remove it.
Check for dust and waste in the
motor unit, as well as the condition
of the filter, and replace if neces-
sary.
If there is any abnormality, replace
the PCB AU.
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