Small Appliance Repair Questions? Ask a Technician ASAP
Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.
Is the needle completely straight? Have you tried using a new, straight, sharp needle?
Also check for any buildup of lint around the mechanism underneath the sewing area.
Let me know what you find..
Ok, so you are sure that the bobbin is placed correctly and the threading is correct as per the manual, have you also tried adjusting the tension as per the manual?