White 2221 - Trouble Chart; Troubleshooting Common Issues

Trouble
Probable
Cause
Correct
Operation
Machine
does
Not
plugged
in
properly.
P
5
not
sew
Power
supply
switch
is
not
on.
P.
5
Thread
is
stuck
in
the
hook
groove.
P
35
Bobbin
winder
spindle
is
pusn
to
the
right.
P
7
Top
cover
is
removed.
P
37
Making
noise
Lack
of
oil.
P.
36,37
Running
slowly
Fluff
or
thread
stuck
in
rotary
hook.
P.
35
Fluff
stuck
in
feed
dog.
P
35
Machine
kept
in
a
very
cold
or
very
Leave
machine
in
a normally
warm
hot
place.
room
for
a few
hours
before
use.
Breaking
upper
Improper
upper
threading.
P.
9
thread
Upper
thread
tension
too
tight.
P.
16
Bent
or
blunt
needle.
P
6
Improper
needle
setting.
P.
5
Removing
fabric
when
take-up
lever
—
is
not
in
the
highest
position.
Upper
thread
too
thick
or
too
thin
P
14
for
needle
used,
note
frayed
thread.
Needle
hole
on
needle
plate
damaged.
—
Breaking
lower
Thread
not
wound
evenly
on
bobbin
P
7
thread
or
not
drawn
up
correctly.
Lower
thread
tension
too
tight.
P
16
Fluff
and
thread
stuck
in
bobbin
case
and
inside
tension
spring.
P
Improper
lower
threading.
P
8
Skipping
Improper
needle
setting.
P
5
stitches
Bent
needle,
P
6
Improper
needle
and
/
or
thread
for
fabric.
P 14
F
—39—