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Symptom, Cause/solution
The bobbin thread cannot be pulled up.
Needle is turned, bent or the point is dull.
Bobbin is set incorrectly.
Machine does not operate
All keys and buttons have been locked by
Nothing appears in the LCD.
Main power switch is not turned on.
The plug of the power cord is not inserted into an
electrical outlet.
The LCD screen does not look very clear.
The brightness of the screen is not adjusted.
Nothing happens, even if the LCD display is pressed
Adjust the screen.
The screen has been locked.
• Press either of the following keys to unlock the
screen.
The LCD screen is fogged up.
Condensation has formed on the LCD screen.
• After a while, the cloudiness will disappear.
Embroidery unit does not operate.
Embroidery unit is not attached correctly.
Embroidery frame was attached before the unit
was initialized.
Pointer of the embroidery foot "W+" with LED pointer
does not indicate the position correctly
With thick elastic fabric, the position will be
misaligned only at raised parts in the fabric.
With fabric having a very uneven surface, the
position is not correctly aligned.
• The pointer indication should be used only as a
reference.
■ While Operating
Reference
Machine does not operate.
48
40
"Start/Stop" button was not pressed.
Presser foot is not lowered.
"Start/Stop" button was pressed with the foot
controller attached.
48, 50
.
The "Start/Stop" button was pressed while the
machine is set for the sewing speed controller to
control the zigzag stitch width.
22
Needle breaks.
22
Needle is installed incorrectly.
Needle clamp screw is not tightened.
Needle is turned or bent.
Using improper needle or thread for the selected
28
fabric.
Wrong presser foot.
Upper thread tension is too tight.
177
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
107
There are scratches around the opening in the
presser foot.
107
There are scratches on the bobbin case.
Needle is defective.
A bobbin designed specifically for this machine is
not being used.
131
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.
TROUBLESHOOTING
Symptom, Cause/solution
1 Notch
Reference
13
13
58
27, 58
48
48
48
49
194
62, 143
—
42
*
7
*
*
48
36
42
40
50
50
69
69
62
127
183
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