Bernina 735 User Manual page 174

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Errors and faults
Message on the display
The firmware update has failed.
The automatic thread cutter (at
the thread catcher) needs
cleaning.
It is time for the regular
maintenance. Please contact your
authorized BERNINA dealer to
make an appointment.
172
Cause
The latest firmware version
cannot be found on the USB
stick.
The machine needs cleaning/
lubricating.
The automatic thread cutter
needs cleaning. The message
appears every time when the
machine is started as soon as
1000 cutting cycles have been
carried out.
The machine needs maintenance.
The message appears after the
programmed service interval has
expired.
Important information: When
cleaning and maintenance work
is carried out as instructed, the
functionality and long service life
of the machine is ensured.
Ignoring the terms can affect the
operating life and restrict the
guarantee. The cost allocation for
maintenance work is regulated
nationally. Consult your
authorized BERNINA dealer or
your service center for more
details.
Solution
> Make sure that the compressed zip file has been
unzipped for the firmware update.
> Check whether the data for the software update is
saved directly on the data medium and not in a file on
the USB stick.
> Updating Firmware.
> Clean the machine.
> Lubricate the machine.
Important information on lubricating:
> Too much oil may stain the fabric and the thread.
> After lubricating, sew/embroider a test piece first.
> Tap «Confirm».
– The machine calls up the function «Clean the thread
catcher».
> Clean the thread catcher according to the instructions
on the display.
The counter for the cutting cycles is reset.
> Contact an authorized BERNINA dealer.
> Delete the message temporarily by touching the icon
«ESC».
After the third deletion, the message is not displayed until
the next service interval is reached.

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