Janome 792PG, Instruction Book

Page: 40 / 42

39
Troubleshooting
Condition
The fabric is not
being fed
smoothly.
The needle
breaks.
The thread
breaks.
Skipped stitches
The seam is not
sewn neatly.
Seam
puckering.
The machine
does
not operate.
The fabric is not
cut neatly.
Cause
1. The feed dog is packed with lint.
2. The presser foot has been raised.
3. Pressure of the foot is too weak.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The fabric is forcedly pulled.
1. The machine is not correctly threaded.
2. The needle or looper thread tension is too tight.
3. The needle is incorrectly inserted.
4. The needle is bent or blunt.
1. The needle is bent or blunt.
2. The machine is not correctly threaded.
3. The needle is incorrectly inserted.
1. The needle and/or looper thread tensions are
not correctly adjusted.
2. The machine is not correctly threaded.
3. The needle and/or the thread are not suitable
for the fabric being sewn.
4. The thread is not between the tension discs.
1. The needle or looper thread tension is too tight.
2. The machine is not correctly threaded.
3. The differential feed dial is not correctly
adjusted.
1. The machine has not been plugged in firmly.
2. The power switch is turned off.
1. The position of the upper knife is not adjusted
properly.
2. The upper knife is dull.
Reference
See page 37.
Lower the presser foot.
See page 9
See page 8.
See page 8.
Pull the fabric lightly.
See pages 14 ~ 23 and 28.
See pages 26 ~ 27 and 29, 32.
See page 8.
See page 8.
See page 8.
See pages 14 ~ 23 and 28.
See page 8.
See pages 26 ~ 27 and 29, 32.
See pages 14 ~ 23 and 28.
See pages 30, 31, 34 and 35.
See pages 10, 19, 21 and 23.
See pages 26 ~ 27 and 29, 32.
See pages 14 ~ 23 and 28.
See page 10.
See page 5.
See page 5.
See page 36.
Replace the upper knife.
(See page 36.)