TROUBLESHOOTING

Problem

Cause

 

Solution

Page

High-pitched sound

Dust or lint is caught in the feed dogs.

Remove the dust or lint.

A-15

while sewing

 

 

 

 

Pieces of thread are caught in the race.

Clean the race.

 

A-15

 

 

 

 

 

 

 

Upper threading is incorrect.

Check the steps for threading the machine

B-42

 

 

and rethread the machine.

 

 

 

 

 

 

There are scratches on the bobbin case.

Replace the bobbin case, or consult your

A-15

 

 

authorized dealer.

 

 

 

 

 

 

A bobbin designed specifically for this machine

Incorrect bobbins will not work properly. Only

B-39

 

is not used.

use a bobbin designed specifically for this

 

 

 

machine.

 

 

 

 

 

 

Character pattern

Wrong presser foot was used.

Attach the correct presser foot.

S-67

does not turn out

 

 

 

 

Pattern adjustment settings were set

Revise the pattern adjustment settings.

S-82

 

 

incorrectly.

 

 

 

 

 

 

 

 

Did not use a stabilizer material on thin fabrics

Attach a stabilizer material.

S-81

 

or stretch fabrics.

 

 

 

 

 

 

 

 

Thread tension is set incorrectly.

Adjust the thread tension.

S-12

 

 

 

 

 

Fabric was pulled, pushed or fed at an angle

Sew while guiding the fabric with your hands

S-3

 

while it was being sewn.

so that the fabric is fed in a straight line.

 

 

 

 

 

 

Machine does not

There is no pattern selected.

Select a pattern.

 

S-21, S-77

operate

 

 

 

 

“Start/Stop” button was not pushed.

Press the “Start/Stop” button.

B-13

 

 

 

 

 

 

Main power switch is not turned on.

Turn the main power to ON.

B-19

 

 

 

 

 

Presser foot is not lowered.

Lower the presser foot.

B-13

 

 

 

 

 

“Start/Stop” button was pushed with the foot

Remove the foot controller, or use the foot

S-4

 

controller attached.

controller to operate the machine.

 

 

 

 

 

 

The “Start/Stop” button was pressed while the

Use the foot controller instead of the

B-25, S-4

 

machine is set for the sewing speed controller

“Start/Stop” button to operate the machine,

 

 

to control the zigzag stitch width.

or set the “Width Control” to “OFF” in the

 

 

 

settings screen.

 

 

 

 

 

 

 

 

All keys and buttons have been locked by

Press

to unlock all keys and

B-49, B-51

 

 

 

 

.

buttons.

 

 

 

 

 

 

 

 

 

 

Nothing happens,

The screen has been locked.

Press either of the following keys to unlock

—

even if the LCD

 

the screen.

 

 

display is pressed

 

 

 

 

 

 

 

 

 

 

 

The fabric feeds in the

The feed mechanism is damaged.

Contact your dealer or the nearest authorized

—

opposite direction.

 

service center.

 

 

 

 

 

 

The LCD screen is

Condensation has formed on the LCD screen.

After a while, the cloudiness will disappear.

—

fogged up.

 

 

 

 

 

 

 

 

Specifying with

The sensor pen has not been calibrated.

Before using the sensor pen for the first time,

B-62

sensor pen cannot be

 

be sure to calibrate it.

 

done accurately

 

 

 

 

The pen is being held differently than when it

When using the sensor pen, be sure to hold it

B-62

 

 

was calibrated.

at the same angle as when it was calibrated.

 

 

 

The specification location may be misaligned

 

 

 

if the pen is held at a slightly different angle.

 

 

 

In this case, make fine adjustments after

 

 

 

making the selection.

 

 

 

 

 

 

CAUTION

•This machine is equipped with a thread detection device. If the “Start/Stop” button is pushed before the upper threading is done, the machine will not operate properly. Also, depending on the pattern selected, the machine may feed the fabric even if the needle is raised. This is due to the needle bar release mechanism. At these times, the machine will make a sound different from what is made during normal sewing. This is not the sign of a malfunction.

•If the power is disconnected during sewing:Turn the main power to OFF and unplug the machine.

If you restart the machine, follow the instructions for operating the machine correctly.

A-28