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Troubleshooting
If the machine stops operating correctly, check the following possible problems before requesting service.
If the problem persists, contact your retailer or the nearest authorized service center.
Symptom
The machine is not turned on.
The start/stop button was not
pressed.
The presser foot lever is raised.
The sewing
machine does
The start/stop button was pressed,
not operate.
even though the foot controller is
connected.
The bobbin winder shaft is pushed to
the right.
The needle is incorrectly installed.
The needle clamp screw is loose.
The needle is bent or blunt.
The combination of fabric, thread
and needle is not correct.
The presser foot that is used is not
appropriate for the type of stitch that
you wish to sew.
The upper thread tension is too tight. Loosen the upper thread tension.
The fabric is pulled too much.
The needle
The spool is incorrectly installed.
breaks.
The area around the hole in the
needle plate is scratched, or has a
burr on it.
The area around the hole in the
presser foot is scratched, or has a
burr on it.
The shuttle is scratched, or has a
burr on it.
A bobbin designed specifically for
this machine is not used.
The upper thread was not threaded
correctly (for example, the spool is
The upper
not installed correctly, the spool cap
thread breaks.
is too big for the spool being used, or
the thread has come out of the
needle bar thread hook).
▼
Probable Cause
Remedy
Turn on the machine.
Press the start/stop button.
Lower the presser foot lever.
Do not use the start/stop button
when the foot controller is
connected. To use the start/stop
button, disconnect the foot
controller.
Move the bobbin winder shaft to the
left.
Correctly install the needle.
Use the screwdriver to firmly tighten
the screw.
Replace the needle.
Select a thread and needle that are
appropriate for the type of fabric
being sewn.
Attach the presser foot that is
appropriate for the type of stitch that
you wish to sew.
Lightly guide the fabric.
Correctly install the spool.
Replace the needle plate.
Contact your retailer or the nearest
authorized service center.
Replace the presser foot.
Contact your retailer or the nearest
authorized service center.
Replace the shuttle.
Contact your retailer or the nearest
authorized service center.
Incorrect bobbins will not work
properly. Only use a bobbin
designed specifically for this
machine.
Correct the upper threading.
Reference
page 11
page 49
–
page 49
page 21
page 35
page 33
page 128
page 54
–
page 24
–
–
–
page 18
page 24
Troubleshooting
137
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