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TROUBLESHOOTING
Appendix
143
6
High-pitched sound while
sewing
Dust or lint is caught in the feed dogs. Remove the dust or lint. 138
Pieces of thread are caught in the race (bobbin
case).
Clean the race (bobbin case). 138
The upper threading is incorrect. Check the procedure for threading the machine
and rethread it correctly.
29
There are scratches on the race (bobbin case). Replace the race (bobbin case), or consult your
authorized dealer.
−
Cannot thread the needle The needle is not in the correct position. Press the “Needle Position” button to raise the
needle.
11
The threading hook does not pass through the
eye of the needle.
Press the “Needle Position” button to raise the
needle.
11
The needle is installed incorrectly. Reinstall the needle correctly. 35
Thread tension is incorrect The upper threading is incorrect. Check the procedure for threading the machine
and rethread it correctly.
29
Bobbin is set incorrectly. Reset the bobbin thread correctly.
28
The thread or needle is not suitable for the type
of fabric being sewn.
Check the table of fabric, thread and needle
combinations, and select the appropriate
combination.
37
The presser foot holder is not attached
correctly.
Reattach the presser foot holder correctly.
59
The thread tension is set incorrectly. Adjust the thread tension. 45
Character pattern does not
sew out correctly
The wrong presser foot was used. Attach the correct presser foot. 151
Pattern adjustment settings were set incorrectly. Correct the pattern adjustment settings. 106
The thread tension is set incorrectly. Adjust the thread tension. 45
Needle breaks The needle is installed incorrectly. Reinstall the needle correctly. 35
The needle clamp screw is not tightened. Tighten the needle clamp screw. 36
The needle is bent or blunt. Replace the needle with a new one. 35
The thread or needle is not suitable for the type
of fabric being sewn.
Check the table of fabric, thread and needle
combinations, and select the appropriate
combination.
37
The wrong presser foot was used. Attach the correct presser foot. 151
The upper thread tension is too strong. Adjust the thread tension. 45
The fabric is pulled during sewing. Do not pull the fabric during sewing. −
The spool is installed incorrectly. Reinstall the spool correctly. 30
There are scratches around the hole in the
needle plate.
Replace the needle plate, or consult your
authorized retailer.
−
There are scratches around the hole(s) in the
presser foot.
Replace the presser foot, or consult your
authorized retailer.
−
There are scratches on the race (bobbin case). Replace the race (bobbin case), or consult your
authorized retailer.
−
The needle is defective. Replace the needle. 35
Fabric does not feed
through the machine
The feed dogs are lowered. Press the drop feed key to raise the feed dogs. 21, 62
The stitches are too close together. Lengthen the stitch length. 44
The wrong presser foot was used. Attach the correct presser foot. 151
The needle is bent or blunt. Replace the needle with a new one. 35
The thread is tangled. Use scissors, etc., to cut the tangled thread and
remove it from the race (bobbin case), etc.
−
Machine does not operate There is no pattern selected. Select a pattern. 52, 102
The “Start/Stop” button was not pressed. Press the “Start/Stop” button. 40
The main power switch is not turned on. Turn the main power to on. 18
The presser foot is not lowered. Lower the presser foot. 40
The “Start/Stop” button was pressed while the
foot controller is connected.
Remove the foot controller, or use the foot
controller to operate the machine.
11, 41
LCD cannot be read The LCD contrast is not properly adjusted. Adjust the LCD contrast. 22, 140
Problem Cause Solution Page