Bobbin thread will not feed

Incorrect tension for material. Old knotted thread. Bobbin thread and needle thread must match. Thread and needle size suitable for the material being sewn.
Feed dogs underneath need cleaning. Thread tangled underneath feed plate. Needle too old or bent, or blunt.. Hope this helps

maybe your machine needs to go in for servicing just to be safe it is possible some thing simple

1. thread machine correctly.
2. make sure bobbin case in spinning in the case in the correct rotation. If the bobbin is spinning off of the bobbin incorrectly, "bird nesting" is the result.

In my Brother CE-4000, it appears as though the feed dogs (which you can change to a higher position or a lower position) are allowing the bobbin case to spin all the way around and then the needle hits the bobbin case. When the feed dogs are in the lowest position, the bobbin case does not spin all the way around when the needle moves up and down (and therefore the needle does not get stuck in the bobbin case. I am wondering if this is a problem with the feed dogs/case?

There has to be a problem in your threading or your needle. You may have the needle inserted backwards, flat side has to face rear or the needle is bent. Totally unthread your machine and make sure that there are no tangles and that it feeding the right way. Watch how they show your for threading and winding the bobbin, plus threading the bobbin. Good luck, but I truly think it is in your threading.

If you have threaded the machine with the presser foot up, check the bobbin to be sure the thread is feeding from the spool in the correct direction and through the guide on the bobbin case.......... and this still happens, then machine needs to go into the shop for service.

when the needle pulls the fabric into the feed dog you dont have enough fabric behund the neelde when you srart, and the fabric gets caught in the feed and the bobbin case underneath clean it out anf change the needle they often get bent after they get tangled in the thread and fabric

This was happening to me too, I reversed the bobbin feeds and it has not tangled since then. I was orignally feeding the bobbin from the left side and now i feed the thread from the right. It works great this way.

can not thread bobbin...bobbin on top

Hi Jeanette! You have a Singer Featherweight--the best sewing machine ever made! (Mine dates from 1950/51 and I wouldn't trade it for the world.) These beautiful, sturdy machines were designed to be easily repairable at home, but you'll need a copy of the Service Manual (get the Instruction manual too, if you don't have one.) Go to www.singer-featherweight.com and check out what they have available.

I had a similar problem (needle thread not catching the bobbin thread) and the problem was that I hadn't put the needle in correctly (flat side to the left). Also, I will occasionally get thread wrapped around the bobbin housing--sewing along just great and then everything comes to a screeching halt. I'm not sure why that happens, but I'm getting pretty good at taking the bobbin housing apart. The manual is pretty clear on how to do it. You can contact me direct at [email protected] for more information.

Thanks!

Robbie