Bernina 530 User Manual page 78

fault cause
Lower thread
̶ Lower thread tension too tight
breaks ̶ Stitch hole in the stitch plate has been
damaged
̶ Needle blunt or bent
needle breaks ̶ Needle not correctly inserted
̶ Fabric was pulled
̶ Fabric was pushed when thick material
used
̶ Poor-quality thread, unevenly wound
or knotted
Sewing computer
̶ Sewing computer fails to run or runs
slowly
message
̶ Internal calculation error
assert in file
repair
increase the upper thread tension
█
take the sewing computer to the nearest authorized
█
BERNINA dealer
use new needle
█
tighten the needle clamp screw
█
do not pull the fabric during sewing
█
use the correct presser foot for thick material (e.g. Jeans foot
█
No. 8) use height compensating tool when sewing over a
thick seam
use quality thread (Isacord, Mettler, Gütermann etc.)
█
plug not properly inserted
█
power switch to «0» (off)
█
sewing computer has been standing in a cold room
█
take the sewing computer to the nearest authorized
█
BERNINA dealer
switch the sewing computer off and on again
█
033471.52.04_2014-02_Manual_B530_550_EN
troubleshooting
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