Originally Posted by
Nana2Sew
I would check your thread spool. Sometimes the thread gets caught on a nick on the spool end. Also, are you using a spool cap? After you thread the needle, pull the thread through the machine several times and make sure it is flowing smoothly and the needle dose not move.
Check to see if the thread is in the take up lever. When you thread the machine, the presser foot should be up.
These tips have helped me.
I had a large spool of thread that kept catching and doing the same thing, until I noticed the little nick for securing the thread, was catching it. I went and got an emery board and smoothed it, and it worked. Just wanted to share this hint.