Read Panasonic MC-CG883JR79 Service Manual online
5
3 Troubleshooting Guide
CONDITION
PARTS TO BE CHECKED
CHECK METHOD
REMEDY
The motor does not rotate.
Power cord
Check if the power cord is broken.
Inspect the cord in the cord reel
assy for continuity.
Inspect the cord in the cord reel
assy for continuity.
If the cord is broken, replace the
cord reel assy.
cord reel assy.
Fuse (FUSE1: 250V, 13A)
(on the P.C.B)
(on the P.C.B)
Visually check if the fuse has
blown.
blown.
• Check the cause of fusing.
1. Burnt motor or shorted coil
2. Shorted lead wire
3. Burnt P.C.B
etc.
2. Shorted lead wire
3. Burnt P.C.B
etc.
If the fuse has blown, remove the
cause and replace the P.C.B assy.
cause and replace the P.C.B assy.
Motor
Inspect the continuity between the
motor terminals.
motor terminals.
If there is no continuity, replace the
motor.
motor.
ON/OFF switch (on the P.C.B)
Turn the switch on and off to check
the continuity.
the continuity.
If there is a problem, replace the
P.C.B assy.
P.C.B assy.
P.C.B assy
Check the internal components for
problems.
(Burnt, melted, broken, etc.)
problems.
(Burnt, melted, broken, etc.)
If there is a problem, replace the
P.C.B assy.
P.C.B assy.
Triac (in the P.C.B)
Check the triac by conducting the
following inspection.
following inspection.
If there is a problem, replace the
P.C.B assy.
P.C.B assy.
The motor rotates, but dust cannot
be picked up.
Dust cannot be picked up.
be picked up.
Dust cannot be picked up.
Dust bag (paper bag)
Filter
Filter
Check if the paper bag is full of
dust.
Check if the filter is clogged with
dust.
dust.
Check if the filter is clogged with
dust.
If the paper bag is full of dust,
replace it with a new one.
If the filter is clogged with dust, and
clean or replace it.
replace it with a new one.
If the filter is clogged with dust, and
clean or replace it.
Hose, extension wand, floor
nozzle
nozzle
Check if the part is clogged with an
obstruction.
obstruction.
If there is an obstruction, remove it.
Large vibration
Large noise
Large noise
Motor fan
Check for dust in the motor fan.
(If the dust leaks or if the filter is
missing, then dust will be able to
penetrate the motor.)
(If the dust leaks or if the filter is
missing, then dust will be able to
penetrate the motor.)
There is dust in the motor.
Check for dust leaks and filter sta-
tus, and replace the part if neces-
sary.
Check for dust leaks and filter sta-
tus, and replace the part if neces-
sary.
The motor output (suction power)
cannot be changed.
1. The motor always rotates at full
speed.
2. The lamp of the output switching
control changes, but the output
does not change.
3. Even the lamp of the output con-
trol cannot be changed.
cannot be changed.
1. The motor always rotates at full
speed.
2. The lamp of the output switching
control changes, but the output
does not change.
3. Even the lamp of the output con-
trol cannot be changed.
P.C.B K unit
P.C.B assy
P.C.B assy
Check if the suction power can be
changed when changing the control
lamp indication by pressing the
suction control switch button (push
buttons A/B).
Check for continuity between T1
and T2 of the P.C.B assy’s triac.
changed when changing the control
lamp indication by pressing the
suction control switch button (push
buttons A/B).
Check for continuity between T1
and T2 of the P.C.B assy’s triac.
If there is a problem, replace the
P.C.B assy.
P.C.B assy.
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