Why does my Singer Sewing Machine upper thread keep breaking?
- SStephanie SandersAug 17, 2025
There are several reasons why the upper thread might be breaking. It could be that the machine is not threaded correctly, so try rethreading it. The thread tension might be too tight; reduce it. The thread could be too thick for the needle, so select a larger needle. Ensure the needle is inserted correctly with the flat side towards the back, or the needle might be damaged and needs replacement. Also, check if the thread is wound around the spool holder pin and unwind it.