Troubleshooting
In this troubleshooting guide you will find solutions to the problems you may have with your machine. For further information
please contact your local authorized HUSQVARNA® VIKING® retailer who will be happy to help you.
Note: For problems with the firmware, such as WiFi connection and mySewnet™ services, please refer to the troubleshooting section in the built-in
user’s guide.
General Problems
Bobbin alarm does not work
Clean lint from bobbin area and use only the original
HUSQVARNA® VIKING® category 8 bobbins, designed
especially for this model.
Thread cutter does not cut the thread Remove needle plate and clean lint from bobbin area.
Enable automatic thread cutter in the settings menu.
Fabric does not feed Make sure the machine is not set for free motion sewing.
Make sure the feed teeth are not set to down in the settings
menu.
Wrong stitch, irregular or narrow stitch Deactivate twin needle or stitch width safety in the settings
menu.
The needle breaks Insert needle correctly as described, see Changing the Needle,
page 37.
Use a needle suitable for selected fabric. See Selecting Correct
Thread/Needle Combination, page 41.
The machine will not sew Check that all plugs are securely inserted into the machine
and the wall socket.
Poor sewing/embroidery result
Use only accessories designed for your DESIGNER
RUBY™ 90 machine.
Follow the on-screen recommendations.
The sewing and embroidery machine screen and/or function
buttons do not respond to touch
The sockets and function buttons on the machine can be
sensitive to static electricity. If the screen does not respond to
touch, turn the machine OFF and then ON again. If the
problem persists, contact your authorized HUSQVARNA®
VIKING® retailer.
When sewing in heavy and/or dense fabrics the machine
emits a distinct sound different from the sound normally
generated when sewing.
The sound is not an indication of malfunction. The machine
is equipped with a pulsating needle piercing feature that helps
the needle to penetrate heavy and/or dense fabrics. The
sound is caused when the presser foot and fabric lift with the
needle. Increase the presser foot pressure to prevent the foot
from lifting.
If the sound does not seem to be related to the pulsating
needle piercing feature, contact your authorized
HUSQVARNA® VIKING® retailer for service.
The Automatic Needle Threader Does Not Work Properly
The needle eye is too small for the thread Use a larger needle size or lighter weight thread. See Selecting
Correct Thread/Needle Combination, page 41
Are you using a specialty thread such as an “invisible” or
other stretchy thread, metallic or flat metallic thread or heavy
weight thread?
Specialty threads may not be caught correctly by the hook on
the automatic needle threader. If this happens, the needle will
not be threaded. Try using the automatic needle threader
again or thread the needle manually.
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