How do I fix my Bernina 830 foot pedal?

I haven't used my Bernina 830 for quite a while but today I found the light turns on but nothing happens when I push on the foot pedal. On the internet it says there are a couple different foot pedals for my model, type 213 and 232. Mine says Type 290 on the bottom. I bought it just before the newer models came out and the internal parts are set up different than the 213 or 232. It also shows 115V 60Hz 0.9A.
I wouldn't try to repair this myself but my husband has experience with other electrical appliances and with instruction may be able to repair it.
Thanks.