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Troubleshooting
A-8
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.)
Rethread the machine correctly. B-19
Knotted or tangled thread is being used. Remove any knots or tangles. –
Upper thread tension is too strong. Adjust the thread tension. E-26
Thread is tangled. Use scissors, etc., to cut the tangled thread and
remove it from the race, etc.
A-2
Needle is turned, bent or the point is dull. Replace the needle. B-23
Needle is installed incorrectly. Reinstall the needle correctly. B-23
There are scratches near the hole in the
embroidery foot.
Replace the embroidery foot, or consult your
authorized Brother dealer.
A-5
There are scratches on the bobbin case. Replace the bobbin case, or consult your
authorized Brother dealer.
A-2
Using improper needle or thread for the
selected fabric.
Check the information about the needle and
thread to be used.
B-23
While embroidering, the thread became knotted
or tangled.
Rethread upper and lower thread. B-17, B-19
A bobbin designed specifically for this machine
is not used.
Incorrect bobbins will not work properly. Only
use a bobbin designed specifically for this
machine.
B-14
The thread is
tangled on the
wrong side of the
fabric.
Upper threading is incorrect. Check the steps for threading the machine and
rethread the machine. Be sure that the
embroidery foot is in the raised position when
threading the machine so that the upper thread
sets properly in the upper tension.
B-19
Using improper needle or thread for the
selected fabric.
Check the information about the needle and
thread to be used.
B-23
The upper thread is
too tight.
The bobbin thread is incorrectly installed. Correctly install the bobbin thread. B-17
Bobbin thread
breaks.
Bobbin is set incorrectly. Reset the bobbin correctly. B-17
Bobbin thread is incorrectly wound. Use a correctly wound bobbin. B-17
There are scratches on the bobbin or it doesn’t
rotate properly.
Replace the bobbin. B-14
Thread is tangled. Use scissors, etc. to cut the tangled thread and
remove it from the race, etc.
A-2
A bobbin designed specifically for this machine
is not used.
Incorrect bobbins will not work properly. Only
use a bobbin designed specifically for this
machine.
B-14
Fabric puckers.
There is a mistake in the upper or bobbin
threading.
Check the steps for threading the machine and
rethread it correctly.
B-19
Spool cap is set incorrectly. Check the method for attaching the spool cap,
then reattach the spool cap.
B-14
Needle is turned, bent or the point is dull. Replace the needle. B-23
Skipped stitches
Machine is threaded incorrectly. Check the steps for threading the machine and
rethread it correctly.
B-19
Needle is turned, bent or the point is dull. Replace the needle. B-23
Needle is installed incorrectly. Reinstall the needle correctly. B-23
The needle is worn/damaged. Replace the needle. B-23
Dust or lint has collected under the needle
plate.
Remove the dust or lint with the brush. A-2
Symptom Probable Cause Remedy Reference
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