Troubleshooting - Bernina Artista 185 Manual

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Troubleshooting

Trouble shooting
In most cases you will be able to identify and remedy
faults by checking the following.
Check whether:
· the upper and lower threads are threaded correctly
· the needle is inserted as far up as possible with the flat
side to the back
· the needle size is correct – check the needle/thread
table
· the machine is clean – brush out any thread lint
· the hook race is clean
· any threads are trapped between the tension discs or
under the bobbin case spring
Upper thread breaks
· upper thread tension is too tight
· needle is not designed to be used with the chosen
thread
· needle has been inserted incorrectly – the flat side of
the shank must be to the back
· needle is bent or blunt
· for additional needle information, check the Creative
Consultant and the charts on pages 71–72
· poor quality, knotted or dried out thread has been used
· use the correct spool disc
· stitch plate or hook tip damaged – take your machine
to your BERNINA ® dealer
Lower thread breaks
· the lower thread tension is too tight.
· the bobbin is jamming in the bobbin case. Remove and
replace the bobbin.
· the hole in the stitch plate has been damaged by the
needle. This must be polished by an authorized
BERNINA ® service technician
· the needle is blunt or bent.
Skipped stitches
· wrong needles used – use only 130/705H system
· the needle is blunt, bent or incorrectly inserted – push
completely to the top when inserting.
· the needle point does not suit the fabric being sewn –
if necessary, use a ball point or stretch needle for
knitted fabrics and a cutting point for hard leather.
Needle breaks
· needle clamp screw loose.
· fabric taken out forward instead of behind the presser
foot.
· when sewing over thick area, the fabric was pushed
with the needle still in the fabric.
· poor quality thread, unevenly wound or knotted.
Faulty stitching
· remnants of thread between the tension discs
· remnants of thread under the bobbin case spring
· incorrect threading. Check upper and lower threads
· use the correct spool disc
Machine fails to run or runs slowly
· plug not fully inserted
· power switch in off (0) position
· machine has been standing in a cold room
· bobbin winder engaged
· remnants of thread block the hook system
Machine sews in reverse
· reverse sewing function is activated
Defective sewing-light
Caution:
· Please note that a defective CFL sewing light must
ONLY be replaced by an authorized technician. The
sewing computer must be brought to an authorized
BERNINA dealer!
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