Troubleshooting & Fixes

Struggling with sewing machine tension problems? Learn the difference between upper and lower thread tension, how to diagnose issues, and fix them step by step.

Skipping stitches is one of the most common sewing machine problems and is usually caused by a dull needle, incorrect threading, or tension issues. In this troubleshooting guide, we explain the most common reasons a sewing machine skips stitches and show simple fixes to help your machine sew smooth, even stitches again.