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Case
● 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.)
● The machine will not start
even when start/stop button
is pressed.
● Thread breaks.
● Stitch is skipped.
● Thread tension is not good.
● Puckering occurs.
●
sign is shown on the
LCD display.
Cause (Reason)
● Hand wheel is turned by mistake while
the needle threading lever is in down
position. (in the process of threading
to the needle.)
● The foot controller is plugged in.
● 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 cor-
rect.
● The bobbin can not turn smoothly in-
side the hook holder.
● The needle size does not match the
thread.
● Thread take-up is not threaded.
● The needle thread is threaded incor-
rectly.
● The bobbin thread is threaded incor-
rectly.
● The direction of spool cap doesn't
match the spool.
● The stitch length is too large on light-
weight fabrics.
● The needle tip is broken.
● Safety mechanism works when ma-
chine stops due to motor lock.
Solution
● Turn hand wheel slightly away
from you. (to the opposite side
when sewing).
● Start/stop button can function
when foot controller is removed.
● 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.
● Rethread the machine correctly.
● Check the correct way of setting
bobbin thread.
● Attach the spool cap in a correct
direction.
● Make the stitch length smaller
(shorter).
● Change needle.
● The safety mechanism will be re-
set in a short while (about 10 min-
ute) and the machine will return to
normal. (At this time, the start/stop
button will not light up.)
Refer-
ence
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