[C320-list] ST60 wind angle failure

[DONALD DIXON]

Last week the wind angle indicator on Stargazer (ST60) failed.  It only points forward  (from about 45 degrees port to starboard but no further back) and I am unable to recalibrate it.  Wind speed remains OK - so I presume the problem is in the vane/transducer atop the mast and not the wiring.
 
Any suggestions as to repair (haven't been up the mast, yet)?  Has anyone had to replace the unit?
 
Thanks.
 
Don Dixon
Stargazer, #605
Key West, FL