The bobbin thread does not catch - the material feeds through, the needle works, the top stitch looks good, but there is no thread holding it together on the bottom.

Laura Waack, May 2007

Hello Laura,
The most common cause is a new needle being put in the wrong way round, or, the needle is blunt or bent, the very worst it can be is the machine is out of time but I would definitely try the needle first, get back if you want to.
Ken
drivewithken@blueyonder.co.uk

Ken Dourof, May 2007