HI i just got a pentax winder me and i put new batts in it and when i turn it on all it wonts to do is keep winding it wont stop it worked one time now it wont stop unlless i turn it off . Thanks James

When you wind it manually (forward or clockwise) it winds the mainspring. Only need to watch it 5 or 6 times if it's completely stopped you wearing it will do the rest. If you going to get a automatic winder get one that will wind in both directions. It will give a few revolutions clockwise and then we'll go reverse counterclockwise.
Hope this answers your questions thank you.

Please take your machine out of bobbin winding mode.

Take it to a Janome dealer for repair.

I would say the film in the camera is lost.
Take it out with as little damage to the film as possible. If required cut the film and remove from the camera spool.
Try the camera with no film, does it work.
It could just be a bad roll of film, unlikely but possible.

It should stop advancing the film when the camera counter is on #1 exposure with or without film.

no idea... did you lock thread onto bobbin so it holds to wind?

Simply loosen the screw on the bobbin winder stop, no more than 1 full turn or you will drop the backing nut will fall down into your machine, move the bobbin winder stop slightly to the left then tighten the screw and see if that works. you may have to repeat this step several times until you find the right spot to stop the bobbin at the correct point.

To wind a bobbin put the cotton reel on the top pin, take the thread to the left and round the little wheel and back to the bobbin that should be on the winder, wind the thread round a few times to take a grip, release the stop motion in the balance wheel, turn the winder button so the winder moves to the balance wheel and press on the foot control slowly.
When you put the bobbin in the bobbin case make sure it turns anti clockwise.

This has happened with my pentax super program. All that was wrong is the the spool/winder was dirty. It needed to be cleaned. You open up the back of the camera. Stick something such as a small screw driver, just something to stop the film winder from turning. Now turn the top of the winder off while keeping the bottom part in place. Be very careful not to close the back of the camera while you do this. Once you have it out give it a clean with a soft cloth and then put it back in. I found it tricky to align it and get it back through the whole. But, that's me. After that it worked perfectly. Until the next time in a year or so it needed to be cleaned again. Hope this helps.

This is not a simple repair - if the wind lever is "ratcheting", parts will have to be replaced. If the wind lever is "free-wheeling", there might be no film in the camera, or the counter isn't working ( it has to be at #1 or above to cock the shutter ). It's a job for a repair shop.