Bernina 790 Manual page 177

Attachment
Fault
Sewing speed too low
The machine doesn't start
The light of the «Start-/Stop»
button doesn't light up
Neither the sewing light nor
the light on the free arm lights
up
Upper thread indicator doesn't
react
Bobbin thread indicator
doesn't react
Error during software update
178
Cause
Unfavorable room temperature.
Settings in the Setup Program.
Unfavorable room temperature.
The machine is damaged.
Light is defect.
Settings in the Setup Program.
The sewing light is defect.
Settings in the Setup Program.
The upper thread indicator is
defect.
Settings in the Setup Program.
The bobbin thread indicator is
defect.
USB stick is not recognized.
The update process is blocked
and the hourglass on the display
is inactive.
Date of the software update
cannot be found.
035964.50.04_2014-08_Manual_B790_EN
Repair
> Place the machine in a warm room one hour before use.
> Adjust the sewing speed in the Setup Program.
> Adjust the slide.
> Place the machine in a warm room one hour before use.
> Connect the machine and switch it on.
> Contact the specialized BERNINA dealer.
> Contact the specialized BERNINA dealer.
> Activate it in the Setup Program.
> Contact the specialized BERNINA dealer.
> Activate it in the Setup Program.
> Contact the specialized BERNINA dealer.
> Activate it in the Setup Program.
> Contact the specialized BERNINA dealer.
> Use a BERNINA USB stick.
> Remove the USB stick.
> Switch the machine off.
> Switch the machine on.
> Follow the instruction on the display.
> Unzip the update data.
> Save data of the software update directly on the data
medium and not in a file on the USB stick.