[sluggo]

Disconnect the line going to the AC unit and then try the pump to see if anything comes out. And try blowing sir thru the AC unit.

One time on my old boat, I must have gotten some type of vapor lock in my AC unit.  Pump would come on but no water came out.  I ended up having to disconnect the input hoses and output hoses from the AC unit and let any residual water drain.  My thought was I had water, air, then more water in the line and that was somehow locking it up.

Let us know how you make out.

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thanks for the quick response.  We have done all of that, and no we are not getting any water coming out of the pump to the AC unit.  We disconnected the water line to the AC on the other pump (that goes to the AC on the helm) and it shot water out of it.  
I will try to blow some air threw there and see.