P
pattersonemilyAug 27, 2025
Why does the upper thread keep breaking on my Bernina 555?
- SSherry RayAug 27, 2025
If the upper thread keeps breaking on your Bernina sewing machine, consider the following: * The needle and thread combination might be incorrect; match the needle with the thread size. * The upper thread may be too tight; reduce the upper thread tension. * The machine might be incorrectly threaded; rethread it. * The thread quality could be poor; use quality thread. * The stitch plate or hook tip may be damaged; contact a specialized BERNINA dealer for repairs. * The thread may be caught in the area of the thread take-up lever; replace the stitch plate.











