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Troubleshooting
62
■ While sewing
The sewing lamp does not come on.
The sewing light is damaged.
• Contact your authorized Brother dealer or the
nearest Brother authorized service center.
–
The LCD screen is fogged up.
Condensation has formed on the LCD screen.
• After a while, the cloudiness will disappear.
–
Symptom, Cause/solution
Reference
Machine does not operate.
“Start/Stop” button was not pressed. 23
The bobbin winder shaft is pushed to the right. 12
There is no stitch selected. 23
Presser foot is not lowered. 24
“Start/Stop” button was pressed with the foot
controller attached.
24
Needle breaks.
Needle is installed incorrectly. 20
Needle clamp screw is not tightened. 20
Needle is turned or bent. 20
Using improper needle or thread for the selected
fabric.
19
Wrong presser foot was used. 21
Upper thread tension is too tight. 27
Fabric is pulled during sewing. –
Spool of thread is set incorrectly. 12
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.
*
There are scratches around the opening in the
presser foot.
*
There are scratches on the bobbin case. *
A bobbin designed specifically for this machine is
not used.
12
Upper threading is incorrect. 15
Symptom, Cause/solution
Reference
1 Notch
a
Bobbin is set incorrectly. 14
Presser foot is attached incorrectly. 21
Screw of the presser foot holder is loose. 22
Fabric is too thick. 19, 30
Fabric is fed forcefully when sewing thick fabric
or thick seams.
30
Stitch length is too short. 27
Bobbin thread is incorrectly wound. 12
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.).
15
Knotted or tangled thread is being used. –
The selected needle is not appropriate for the
thread being used.
19
Upper thread tension is too tight. 27
Thread is tangled. 57
Needle is turned, bent or the point is dull. 20
Needle is installed incorrectly. 20
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.
*
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.
19
A bobbin designed specifically for this machine is
not used.
12
The thread is tangled on the wrong side of the fabric.
Upper threading is incorrect. 15, 58
Using improper needle or thread for the selected
fabric.
19
The upper thread is too tight.
The bobbin thread is incorrectly installed. 14, 57
Symptom, Cause/solution
Reference
1 Notch
a
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