Bobbin won't wind!!

You are not exactly threading the machine when you wind the bobbin. So follow the directions for winding the bobbin, make sure the thread fits under the little revolving wheel, and make sure that the stitch part of the machine is disengaged.

Adjust the spool stopper

a part of the bobbin winder is not working and should be checked

sometimes that happens the wheel could be stripped and not tighten all the way it will not hurt your machine just make sure it is not threaded

This was really helpful for me fixing my daughter a John Lewis (janome) mini sewing machine, and now can get the bobbin thread up again, however, when you sew, the thread is not staying in stitches, just coming off the material completely. I tried forcing the gears on one more time but then it didn't pick up the bobbin thread again so went back to the other gear position. Any ideas of what to try and get it stitching again? Thanks

Did you remember to slide the bobbin winder pin all the way to the left?

here's a link for a manual
http://www.sewingpartsonline.com/instruction-manual-janome-harmony-1017.aspx

try these links about bobbin winding
http://www.youtube.com/watch?v=f3-qsUpErmA

http://www.youtube.com/watch?v=SnlU9ywfVEs

http://www.youtube.com/watch?v=Xw1HgTEK0VI

BRAND new Janome 1420qdc. New needle, doesn’t need oil. Will NOT wind a bobbin. Used almost an entire spook of thread doing this. At my wits end. HELP!

You can contact Janome for a manual here - http://www.janome.com/index.cfm/ContactUs/General_Inquiries

Most of the entry level machines will have either a clutch knob or an automatic release when the bobbin winder mechanizm is engaged (put a bobbin on and more the unit to you right). If it does not disengage the clutch automaticly then either loosen the clutch wheel by turing or pulling. Sometines you have to grab the whole clutch wheel to disenage the mechanism to free wheel while winding the bobbin. Now press you foot control to wind the bobbin.
SewTech