My Pfaff 1222 sewing machine was sewing fine until one day I switched it on to sew and it went on running before Pressed the foot control. It has not stopped. I cannot use it as it doesn't feel safe coming anywhere near it. Does anyone have an idea what has happened? Please help....

Meg, January 2017

Possibly the foot control has short circuited - nearly always the capacitor - just a spark suppressor - cut it out and don't bother replacing it.

Good Luck..., January 2017

Possibly the speed controller has failed to short circuit

xxx, January 2017