Troubleshooting - Janome 15 Instruction Book

Troubleshooting

Condition
The needle thread
breaks
The bobbin thread
breaks
The needle breaks
Skipped stitches
Seam puckering
The fabric is not
feeding smoothly
Stitch form loops
below the work
The machine does
not work
Buttonhole sewing
is not sewn properly
The machine is
noisy
Cause
1. The needle thread is not threaded properly.
2. The needle thread tension is too tight.
3. The needle is bent or blunt.
4. The needle is incorrectly inserted.
5. The needle thread and the bobbin thread are not set
under the presser foot when start sewing.
6. The threads were not drawn to the rear after sewing.
7. The thread is too heavy or too fine for the needle.
1. The bobbin thread is not threaded properly in the bobbin
holder.
2. Lint has collected in the bobbin holder.
3. The bobbin is damaged and does not turn smoothly.
1. The needle is incorrectly inserted.
2. The needle clamp screw is loose.
3. The needle is too fine for the fabric being sewn.
4. An inappropriate presser foot is used.
1. The needle is incorrectly inserted, bent or blunt.
2. The needle and/or threads are not suitable for the work
being sewn.
3. A blue tip needle is not being used for sewing stretch,
very fine fabrics and synthetics.
4. The needle thread is not threaded properly.
5. A poor quality needle is used.
1. The needle thread tension is too tight.
2. The needle thread or bobbin thread is not threaded
properly.
3. The needle is too heavy for the fabric being sewn.
4. The stitch length is too long for the fabric.
* Use a stabilizer for very fine fabrics.
1. The feed dog is packed with lint.
2. The stitches are too fine.
3. The feed dog is lowered.
1. The needle thread tension is too loose.
2. The needle is too thick or too fine for the fabric.
1. The machine is not plugged in or foot control is not
connected.
2. Thread has been caught in the hook race.
3. The clutch is disengaged.
1. The stitch density is not suitable for the fabric being
sewn.
2. The interfacing has not been used for the stretch or
synthetic fabric.
1. Thread has been caught in the hook race.
2. Lint has built up in the hook race or bobbin holder.
35
Reference
Page 13
Page 17
Page 8
Page 8
Page 18
Page 18
Page 9
Page 12
Page 33
Change the bobbin.
Page 8
Page 8
Page 9
Use the correct foot.
Page 8
Page 9
Page 9
Page 13
Change the needle.
Page 17
Page 12, 13
Page 9
Make stitch shorter.
Page 33
Make stitch longer.
Page 6
Page 17
Page 9
Page 5
Page 33
Page 11
Page 24
Apply an interfacing.
Page 33
Page 33