Troubleshooting - Bernina Deco 330 Manual

Troubleshooting

Problem:
The machine is noisy
The needle thread breaks. 1 The needle thread is not threaded properly.
The bobbin thread breaks. 1 The bobbin thread is not threaded properly in the bobbin
The needle breaks.
Visual Touch Screen is
not clear.
Skipped stitches.
The machine does not run. 1 A thread is caught in the hook race.
Abnormal noise occurs
when the machine is
switched on.
Patterns are distorted.
Pattern selection keys
don't work.
1 Threads have been caught in the hook mechanism.
2 The needle thread tension is too tight.
3 The needle is bent or blunt.
4 The needle is inserted incorrectly.
5 The needle thread is not set in the thread holder
when starting the machine.
holder.
2 Lint has collected in the bobbin holder.
3 The bobbin is damaged and does not turn smoothly.
1 The needle is inserted incorrectly
2 The needle is bent or blunt.
3 The needle clamp screw is loose.
4 The needle thread tension is too tight.
1 The screen contrast of the visual touch screen is not
adjusted correctly.
2 The screen contrast has been faded due to a
continuous use of the machine.
1 The needle is inserted incorrectly.
2 The needle is bent or blunt.
3 The needle thread is not threaded properly.
4 The defective needle (rusted, burred needle eye) is used.
5 The embroidery hoop is not set properly.
6 The fabric is not tightly pulled on the embroidery hoop.
7 A stabilizer is not being used.
2 The control circuit is not working correctly.
1 Something is caught between the carriage and the arm.
2 The carriage is touching something around the machine.
1 The fabric is not pulled tightly on the embroidery hoop.
2 The embroider hoop is not fixed securely.
3 The carriage is bumping into something around the
machine.
4 The fabric is caught or pulled for some reason when
sewing embroidery.
5 The needle thread tension is too tight.
6 A stabilizer is not used.
7 The needle thread on the wrong side of fabric is not cut
correctly.
1 Key position is not adjusted properly.
2 The control circuit is not working correctly.
Cause:
47
Reference:
See page 45.
See pages 9, 10.
See page 13.
See page 14.
See page 14.
See page 12.
See page 8.
See page 45.
Replace the bobbin.
See page 14
See page 14.
See page 14.
See page 13.
See page 21.
See page 21.
See page 14.
See page 14.
See pages 9, 10
Replace the needle.
See page 18.
See page 17.
See page 16.
See page 45.
Turn the switch off and
turn it on again.
Remove the object.
See page 18.
See page 17.
See page 18.
See page 18.
Stop the machine and
free the fabric.
See page 13.
See page 16.
Cut extra needle thread
on wrong side.
See page 23.
Turn the switch off and
turn it on again.