I had that idea also. Haven't we all got an old computer to tear down and recycle? I'm glad I read this thread first though because I was wondering how to run a wire, There's already a hole in the cabinet. My other thought was to run a ribbon wire through the door seal somewhere but I'll get some small guage wire to feed through the drain tube.
My reasoning for the fan is that the cooling fins are building up with ice and I've been thawing it out every 4 weeks using a blower. After a couple of hours the ice buidup starts again. Always heaviest at the top right of center part of the fins.
1991 34' excella 1000, bought 05/10, oak floors, granite countertops, Marble bathroom counter and floor, 2 A/C's, 2005 Hensley.
Tow With: 2006 Dodge 2500 Quad Longbox 2WD, 5.9 Cummins, Edge Insight CTS, Smarty Jr programmer, Bilstein Shocks, Ingalls balljoints.