All Machines – Most Common Issues
- Thread Bunching / Bird Nests Under Fabric: Re-thread top & bobbin with presser foot UP; use correct bobbin for your brand.
- Skipped Stitches: New needle (size 11–14), inserted flat side to back; clean bobbin area of lint.
- Needle Keeps Breaking: Wrong needle system (Schmetz 130/705H); don’t pull fabric — let feed dogs move it.
- Machine Jammed / Won’t Turn: Turn handwheel TOWARD you only; remove bobbin case and clean hook race.
Computerized Machines (Brother Innov-is, Janome Memory Craft, etc.)
- Error E1/E2/E6: Bobbin winder spindle pushed right — move it left.
- “Raise Presser Foot” Message: Lower buttonhole lever (small lever behind needle bar).
- Touch Screen Not Responding: Clean with microfiber; recalibrate screen via service menu if needed.
Mechanical & Heavy-Duty (Singer 4452, Juki TL-2010Q, etc.)
- Tension Problems: Upper tension 4–5 for most fabrics; always thread with presser foot UP.
- Handwheel Hard to Turn: Never turn backward; oil if model requires (Singer 15, 66, 201, 221, etc.).
Note: Always unplug before cleaning or oiling. Refer to your exact model manual for detailed diagrams.