Bernina 990 - Skipped Stitches; Speed Issues

Maintenance
15 Troubleshooting 103
Error during Firmware Update
Firmware update files are not found.
►
Unpack the compressed ZIP file according to the
update instructions.
►
Store data for the firmware update directly on the
data medium and not in a folder on the USB stick.
Skipped Stitches
Incorrect needle.
►
Use the needle system 130/705H.
Needle blunt or bent.
►
Replace the needle.
Poor quality needle.
►
Use a new BERNINA quality needle.
The needle is incorrectly inserted.
►
Insert the needle with the flat side to the back as
far up as it will go into the needle holder and
tighten the screw.
Incorrect needle point.
►
Match the needle point to the texture of the
material.
Incorrect needle/thread combination.
►
Use a needle with a suitable needle size. [}see
page31]
Speed too low
Room temperature is too warm or too cold.
►
Place the machine in a warm room one hour before
use.
Reduced maximum speed.
►
Move the speed control to the right.
►
Modify the maximum sewing speed in the Settings.
[}see page45]
►
Modify the maximum embroidery speed in the
Settings. [}see page47]
Camera image is blurred or contains dirt particles
Camera lens dirty.
►
Have the lens cleaned by a BERNINA dealer.
The Laser Dot is not visible or is at the wrong position
The laser is concealed or deflected by the presser foot
or the needle.
►
Raise the needle.
►
Fit another presser foot.
►
Lower the presser foot before starting sewing.
►
Contact your BERNINA dealer.
The Light of the button “Start-/Stop” doesn't light up
Light is defective.
►
Contact your BERNINA dealer.