XT3 GSE with a power steering problem
 

I have a 2016 Cub Cadet XT3 GSE with a power steering problem. The wheels turn to the left when the key is turned. Tried to re-calibrate and it got a little better but when cutting grass, the steering wheel binds up when turning left and if I let go of steering just for a second it frees up and turns left by itself.

Thanks for any help