PQ-1500/1500S FAQs & Troubleshooting PQ-1500/1500S Not your product? Sort by Updated Date Popularity 3 Results 1. 23/10/2015 Why does the lower thread keep breaking? 2. 11/05/2006 My needle keeps breaking 3. 09/05/2006 When thread gets tangled. More FAQs (English only) Sewing (Utility Stitches) FAQs & Troubleshooting