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Katherine NielsenAug 30, 2025
Why does the upper thread keep breaking on my Bernina Bernette 25 Sewing Machine?
- PPaula NolanAug 31, 2025
If the upper thread breaks on your Bernina Sewing Machine, several factors could be the cause. First, ensure the machine is threaded correctly; if not, rethread it. Also, check the thread tension; if it's too tight, reduce it. The thread might be too thick for the needle, so select a larger needle. Verify the needle is correctly inserted with the flat side towards the back. Make sure the thread isn't wound around the spool pin; if it is, remove the reel and wind the thread onto it. Finally, inspect the needle for damage and replace it if necessary.