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TROUBLESHOOTING
Problem
The built-in camera
The buttonhole foot is dirty.
cannot detect the
buttonhole foot.
Mark "A+" or the three dots on the presser foot
are shaded or hidden under fabric or your
hands.
■ After Sewing
Problem
Thread tension is
Upper threading is incorrect.
incorrect.
Bobbin is set incorrectly.
Using improper needle or thread for the
selected fabric.
Presser foot holder is not attached correctly.
Thread tension is set incorrectly.
Bobbin thread is incorrectly wound.
Needle is turned, bent or the point is dull.
A bobbin designed specifically for this
machine is not used.
Character or
Stitch pattern adjustment settings were set
decorative stitch
incorrectly.
patterns are
misaligned.
Stitch pattern does
Wrong presser foot was used.
not turn out.
Did not use a stabilizer material on thin fabrics
or stretch fabrics.
Thread tension is set incorrectly.
Fabric was pulled, pushed or fed at an angle
while it was being sewn.
The thread is tangled, for example, in the
bobbin case.
190
Cause
Clean the area of the buttonhole foot to be
detected.
Make sure that nothing obstructs the detection
of mark "A+" or the three dots.
Cause
Check the steps for threading the machine and
rethread the machine.
Reset the bobbin. (If needle plate was
removed, reinstall needle plate.)
Check the "Fabric/Thread/Needle
Combinations" chart.
Reattach the presser foot holder correctly.
Adjust the thread tension.
Use a correctly wound bobbin.
Replace the needle.
Use a bobbin designed specifically for this
machine.
Revise the stitch pattern adjustment settings.
Attach the correct presser foot.
Attach a stabilizer material.
Adjust the thread tension.
Sew while guiding the fabric with your hands
so that the fabric is fed in a straight line.
Remove the tangled thread. If the thread is
tangled in the bobbin case, clean the race.
Solution
Solution
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