Automatic needle threader stuck in lower position

See troubleshooting section of manual. It will help to resolve your issue.
BERNINA-830-Limited-Edition.pdf

Similarly you can use this manual
Bernina_830_831_832_adj.pdf - iFixit

Hi there,

The needle threader hook is very tiny and easily bent or damaged.
The needle threader is designed not to turn, if the needle is not at its most upper position to protect the threader - Turn hand wheel until needle reaches its highest position.
Needle not alining with threader hook - Replace needle.
Threader hook bent - Replace with new needle threader hook.

Hope this helps.

Read more from the link I attatched.

Good luck & have a nice day!

Automatic needle threader will not work

the needle threader may need to be checked to see if there is something wrong with it

You may have a thread stuck in your bobbin area. Remove your bobbin, brush gently with a clean soft brush to remove dust and/or thread bits, then gently wiggle your hand wheel back and forth, and brush again. This should free up your machine.

A needle threader is delicate because it is very thin metal. It is likely that it is bent slightly. If it is threading then move the piece that moves through the needle and check moving parts while it is inserted. This way you can move the metal that is rubbing just slightly to get better movement. You may want to put just a very small amount of oil on the moving parts. If this doesn't work then you will need to replace the threader. Give this a try in order to save money.

Typically the threading device moves downward and then rotates sideways. Which function is stuck? Is the shaft bent? In any case, the threader apparatus is removable. If you need help disassembling, get a service manual for that model (probably about $20 on the internet).

Thanks to floraq803, we have our 11000 working again. The needle threader was stuck in the down position. We turned off the machine, and turned the wheel (which controls where the needle is) until the needle threader bar was straight (approximately 1/2 way between the needle being all the way down and all the way up). Turned on the machine and the threader came back up again. Now back to sewing.

The automatic needle threader is very tiny and easily bent or damaged; however, it is designed not to turn if needle is not at its most upper position to protect the threader. Turn the hand wheel until the needle is at the highest position. If the needle is not aligning with the threader hook, you will need to replace it. And you can replace the needle threader hook if it is bent. I hope this helps!Jimmy

take the end cap off and follow the needle bar up until you see a block with a screw in the middle of it.bring the needle bar down useing the handwheel to its lowest position loosen the screw and you should be able to move the needle bar if you have a needle threader you can use it to reset the height of the needle bar just bring the threader down and then lower the needle bar to where the threader fits into the eye of the needle like it would if it were being threaded

You are threading the top of the machine incorrectly.

Make sure the needle is in correctly with the flat side to the rear of the machine, make sure to thread the upper and lower portions of the machine correctly. If this does not solve your problem, please respond.