[C320-list] Raytheon ST60 wind anemometer not reading

[Leonard Hooks]

My wind anemometer has stopped reading and is only showing 00.0.
It is a Raytheon ST60 which was working fine.  All other instruments working fine.
The vane at the top of the mast is turning normal, just not displaying any speed.  The display is still working and the repeater inside shows the same result.

Where can I start to check?

Leonard Hooks
Revelation 2001 #856
sdg