Reply to VCI-300 Faders

Looks like my line faders on VCI-300 is diing. When faders in top and low positions faders on screen (traktor pro) is moving. Jerk by ~10% up and down. They aren't acting like that always but more and more.

Is there is a way to replace this faders? Are they sold separately? Maybe this faders are not unique and I can use faders from another device? Or maybe there is universal faders that fit?

BTW, pitch faders and line faders have same size? Can I use it? (I mean replace hardware, not mapping).

Thx.