Only a Bernina dealer service tech can help
very difficult fix, possibly the small white plastic disc inside by the hand wheel is broken
no easy fix.
SOURCE: My machine Bernina 830 does not run.
Rose, most likely your machine is gummed up and needs oiling. A product called Tri-Flow is best. It can be purchased at most any hardware store. Or just use normal sewing machine oil. Open the top and put a fair amount of oil down behind the knobs and let it soak in. As it soaks just wiggle the knobs or turn them little by little back and forth until they free up. Don't force anything as something will break.
Good luck
SOURCE: Bernina Aurora 430 utomatic button hole
Take it to your local bernina dealer and have them calibrate the buttonhole foot along with the speed control.
SOURCE: bernina 830, worked fine until today... think it
there is a board inside the foot pedal that goes out sometimes you can check this by flipping the foot pedal upside down and at the top right there is a small hole where you can adjust the speed with a flat head screwdriver but be gentle it breaks easy, if its out you can take it to a bernina dealer and they might have a reapired one or they can send yours off for repair since that part is repair only
SOURCE: I have a bernina 830, I replaced the motor but
the 830 has 3 'banks' of terminals to connect to. with the motor in the cover and laying over on its side so you can see the motor and wiring, one motor wire goes to the teminal closest to the machine pulley and the other motor wire goes to the middle terminal.
scott
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