Troobleshooting

*The lower thread doesn't come up
*Too much lower or upper thread right or wrong side of the fabric
*The handwheel is blocked
*The machine is noisy
*The light doesn't work
*The upper thread breaks
*How to wind bobbins ?
*How to change stitch selection dial ?
*How to choose the correct footcontroller for my machine ?
*How to set up the sewing guide ?
*Help me ! I would like to buy a machine but i don't know what's the difference ?