I keep getting a message to rethread the sewing machine when there is apparentl nothing wrong. This message occurs even when running with no thread in.

SOURCE: Janome memory craft 5700, purchased 2004

Take out your bobbin case and examine it for nicks, scratches and or rough spots.If the problem is not too bad it may be possible to buff out the bad spot with an emery stick or emery cloth. If that isn't possible or it makes too much noise after you buff it you will have to replace it. Look especially along the edges and underneath.
sewman7

Tally Girl

• 1134 Answers
• Posted on Oct 17, 2011

SOURCE: janome memory craft 6500 sewing machine...all of a

Has the bobbin case dislodged and moved? there should be two red marks one on the bobbin case and one on the outer holder, are they lining up? Sometimes as these cases are held by a magnet, they will get dislodged and move slightly, especially in a jam up.
Take out the bobbin case and clean under it, then replace it matching up the red marks.



If the bobbin case has actaully been struck by the needle during a dislodgement, it may well pierce the bobbin case plastic, look for burring or marks on the outer flange area. If this has occured, the thread may catch on the burr as it comes over the bobbin and jam again.

You can buy a new bobbin case if yours is damaged or maybe just file the burring with an emery board (remove it from the machine first of course).

Lastly, check your needle hasn't been bent, burred, or put in backwards, any of these can prevent a stitch from forming.

If all the above fails, then it is possible that the timing has been knocked out and you will need to get it serviced by a technician.