Case Cause (Reason) Solution
Refer-
ence
page
● The needle threading lever
will not return to the original
position and the machine
can not turn properly
.
(This is in case the hook of
needle threader remains in
the needles eye.)
●
Hand wheel is turned by mistake while
the needle threading lever is in down
position. (in the process of threading to
the needle.)
●
Turn hand wheel slightly away from
you. (to the opposite side when
sewing).
-
● The machine will not start
even when start/stop button
is pressed.
●
The foot controller is plugged in. ● Start/stop button can function when
foot controller is removed.
9
● Thread breaks.
● Stitch is skipped.
● The machine is incorrectly threaded.
● There is knot or knurl on the thread.
● The setting of manual thread tension is
incorrect.
●
The needle is bent or the tip of needle
is broken.
●
The needle is installed incorrectly.
● Threading of bobbin thread is not
correct.
●
The bobbin can not turn smoothly
inside the hook holder
.
● The needle size does not match the
thread.
●
Thread take-up is not threaded.
● Rethread the machine correctly.
● Remove knot or knurl from thread.
●
Adjust thread tension manually
according to fabrics and thread to
be used.
● Change needle.
● Install needle correctly
.
● Check the correct way of setting
bobbin thread.
● Check the correct way of winding
bobbin thread.
● Check the combination of thread
and needle.
● Rethread the machine correctly
.
24
-
31
28
28
22
-
30
24
● Thread tension is not good. ● The needle thread is threaded in
correctly.
● The bobbin thread is threaded
incorrectly.
● The direction of spool cap doesn’t
match the spool.
●
Rethread the machine correctly.
● Check the correct way of setting
bobbin thread.
● Attach the spool cap in a correct
direction.
24
22
24
● Puckering occurs. ● The stitch length is too large on
light-weight fabrics.
●
The needle tip is broken.
● Make the stitch length smaller
(shorter).
● Change needle.
45
28
● sign is shown on the
LCD display.
● Safety mechanism works when
machine stops due to motor lock.
● The safety mechanism will be reset
in a short while (about 10 minute)
and the machine will return to
normal. (At this time, the start/stop
button will not light up.)
-
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