I need help with my Simrad TP22 tiller autopilot. The bar that moves the tiller is Stack on Port tack. I open the unit but there are no broken parts. The bar got stuck while I was at the dock and tried to perform some navigation. Is there any way that the unit can be reset. No one in Canada seems to be able to have a fix and they are telling me that I have to buy a new unit. Thanks for the help in advance.