My machine will not turn, needle will not go up and down??

The stitch control unit is most likely seized due to dried oil.

Wheel on right side that controls the needle up and down is very tight...

It was working now it seems to be frozen the needle part wont move

How can fix stuck needle bar on my Bernina 730

If your machine is mechanical (NOT computerized), this link may be helpful:

Wheel on right side that controls the needle up and down is very tight...

...

It's possible that you have threads wound somewhere inside the machine. Likely places are the tension unit and near the hand wheel.

you may have knocked it out of time. when you heard the noise it might have been the needle hitting the fabric to hard which can sometimes knock your machine out of time. you may have to find a local sewing machine store that fixes machines. if you find one they should be able to repair it for little to no cost.

Most likely the needle was broken when a piece of cloth was under the machine right , this means that the needle was slightly bent while it went down to pick up the lower thread , in most of these cases it damaged something fornm the bottom spool.....better check carefullyfor marks and VERY genrly with a new needle in place utrn by hand and see feel where it gets stuck...then replace part or bring to shop to fix ...

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.

Please check the timing. And you go to mechanic shop or you ask the experience tailors.

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.

Hi, if your ddl-555 sewing machine the needle doesn't grab the string from the top and bottom; and it can't sew the fabric. Do you know what to do/

These machines are known to freeze up in the needle bar crank, even when only a couple of hours old. If it is less than a year old, a Brother certified service center will fix it under warranty.