On the blower, does the switch light up? If so, check the actual fan inside the blower housing itself. Try to give it a spin with your finger (switch off). When I got my boat last fall, I spent a good bit of time tracing/testing the circuit, only to find that the fan itself had seized from not being used. Once I "broke" the fan free, it worked fine for a while (but ultimately i did replace as the bearing became noisy). Got a replacement for about $30 (mine was a 3" diameter). Good luck and welcome to the forum--great folks here always willing to lend a hand and sometimes a little humor or sarcasm. Oh yeah. . .pix are kind of a big deal here too!
"This one goes to eleven." 2007 ProStar 197 TT w/MCX and Powerslot.