79
No
No
No
No
Bobbin is not
threaded properly in
the race.
Inferior needle is
used.
Lint is clinging to the
bottom of the needle
plate.
The combination of
needle size/thread
size/fabric is
incorrect.
SKIPPED
STITCHES
LOOP IN SEAM
FABRIC
PUCKERS
CONTACT YOUR LOCAL SERVICE CENTER
LOWER THREAD
BREAKS
UPPER THREAD
BREAKS
PERFORMANCE CHECK LIST
Whenever sewing difficulties are encountered, review the section in this instruction manual that details the operation you are performing to
make sure you are correctly using the machine. If the problem continues, the following check list may help you to improve the operation.
If you still have difficulties, contact your nearest authorized service center.
No
Upper thread is not
correctly installed.
No
No
No
No
Lower thread is
tangled.
Needle is incorrectly
inserted.
Thread tension is
incorrect.
Thread tension is
too tight.
No
Upper thread is
tangled.
No
Threading is not
correct.
No
Upper thread
tension is too tight.
No
No
Wrong needle is
used.
The combination of
needle size/thread
size/fabric is
incorrect.
No
Spool of thread is
not correctly
installed.
No
Needle is bent or
not sharp.
No
The combination of
needle size/thread
size/fabric is
incorrect.
No
Threading is not
correct.