Troubleshooting
Service Instructions 867-M PREMIUM - 03.0 - 05/2017 159
24.3 Error in the software
In rare cases, it may happen that no more menus can be called up after
an error message. Even restarting the machine does not eliminate this
problem.
In this case, it is possible to access the Technician level immediately
during machine startup. It is then possible to carry out an error diagnosis
using Multitest or to reset the machine to the factory settings in the
Reset menu.
To access the Technician level during startup:
1. Switch off the machine at the main switch.
2. Hold button F pressed and at the same time switch on the machine at
the main switch.
The machine starts and the display shows the input screen for the
password.
3. Use the numeric buttons to enter the password (25483).
You are on the Technician level:
Only the two menus Multitest ( p. 126) and Reset ( p. 133)
are available with this access.
24.4 Testing the function of the buttons
If it is suspected that the buttons on the control panel are not functioning
correctly, this function can be tested.
To test the functionality of the buttons on the control panel:
1. Switch off the machine at the main switch.
Loose stitches Thread tensions are not
adjusted to the sewing
material, the sewing material
thickness or the thread used
Check thread tensions
Needle thread and hook
thread have not been
threaded correctly
Check threading path
Needle breakage Needle thickness is
unsuitable for the sewing
material or the thread
Use recommended needle
thickness
Error Possible causes Remedial action
To Next Page
Loading...
