how to unlock my zig zag sewing machine?

Hello barbara,
It may be as simple as a piece of thread stuck in the bobbin case, take the balance wheel and turn it away from you, if there is thread stuck it will free it off, failing that make sure you start to sew with the needle out of the fabric and the takeup lever at the top, failing that it must be electrical or mechanical but probably very unlikely.
drivewithken@blueyonder.co.uk
Ken

Ken Dourof
June 2007