AOA testing?

[N167EC]

Is there a way to confirm that the AOA input is changing in value.
I have tried a couple of times to do the AOA calibration. No success yet.
All I have on the display is the little red triangle at the top of the box.
I know the airspeed inpu is working, but would like to verify the AOA input is functioning too.

 

[dynonsupport]

While you're calibrating, the AOA gauge should move (it's not showing you actual AOA, but just showing AOA sensor activity) while you're calibrating. If it doesn't, suspect something with the plumbing, pitot location on the aircraft, or potentially the Dynon product (historically, this is rare, but not unheard of)