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TROUBLESHOOTING
■ While Operating
Symptom, Cause/solution
Machine does not operate.
"Start/Stop" button was not pressed.
Presser foot is not lowered.
"Start/Stop" button was pressed with the foot
controller attached.
The "Start/Stop" button was pressed while the
machine is set for the sewing speed controller to
control the zigzag stitch width.
Needle breaks.
Needle is installed incorrectly.
Needle clamp screw is not tightened.
Needle is turned or bent.
Using improper needle or thread for the selected
fabric.
Wrong presser foot.
Upper thread tension is too tight.
Fabric is pulled during sewing.
Spool cap is set incorrectly.
There are scratches around the opening in the
needle plate.
*
There is a notch on the left side of the opening
in the needle plate. This is not a scratch.
a
There are scratches around the opening in the
presser foot.
There are scratches on the bobbin case.
Needle is defective.
A bobbin designed specifically for this machine is
not being used.
Upper threading is incorrect.
Bobbin is set incorrectly.
Presser foot is attached incorrectly.
Screw of the presser foot holder is loose.
Fabric is too thick.
Fabric is fed forcefully when sewing thick fabric
or thick seams.
Stitch length is too short.
Stabilizer is not attached to fabric being
embroidered.
180
Reference
13
13
58
27, 58
47
48
47
49
190
62, 139
—
42
*
1 Notch
*
*
47
36
42
40
50
50
69
69
62
122
Symptom, Cause/solution
Bobbin thread is incorrectly wound.
Upper thread breaks.
Machine is not threaded correctly (used the
wrong spool cap, spool cap is loose, the thread
did not catch the needle bar threader, etc.)
Knotted or tangled thread is being used.
The selected needle is not appropriate for the
thread being used.
Upper thread tension is too tight.
Thread is twisted.
Needle is turned, bent or the point is dull.
Needle is installed incorrectly.
There are scratches around the opening of the
needle plate.
*
There is a notch on the left side of the opening
in the needle plate. This is not a scratch.
1 Notch
a
There are scratches around the opening in the
presser foot.
There are scratches on the bobbin case.
Using improper needle or thread for the selected
fabric.
A bobbin designed specifically for this machine is
not being used.
Thread is weak, dry rotted, or of poor quality.
The thread is tangled on the wrong side of the fabric.
Upper threading is incorrect.
Using improper needle or thread for the selected
fabric.
The upper thread is too tight.
The bobbin thread is incorrectly installed.
Bobbin thread breaks.
Bobbin is set incorrectly.
Bobbin thread is incorrectly wound.
There are scratches on the bobbin or it doesn't
rotate properly.
Thread is twisted.
Reference
36
42
—
49
62, 139
—
47
47
*
*
*
49
36
—
42
49
40
40
36
40
—
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