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115
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 re
-
mains 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 but
-
ton is pressed.
● The foot controller is plugged in.
● Start/stop button can function
when foot controller is removed.
8
● 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 nee
-
dle 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.
23
-
29
27
27
21
-
28
23
● Thread tension is not
good.
● The needle thread is threaded in
correctly.
● The bobbin thread is threaded incor
-
rectly.
● 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.
23
21
23
● 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.
41
27
●
sign is shown on the
LCD display.
● Safety mechanism works when ma
-
chine stops due to motor lock.
Or, when the voltage fault has oc
-
curred.
● The safety mechanism will be
reset in a short while and the ma
-
chine will return to normal. (At this
time, the start/stop button will not
light up.)
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