blower (no A/C) not working

[tarafied1]

I'm chasing down the electrical gremlins in my 72 Cheyenne. The PO had billy rigged a push button start switch and it seams the purple wire was just on the wrong post of the solenoid so it wouldn't start with the key. Switched wire to the correct side and it works normal now, that was an easy fix! Then I was troubleshooting fuel gauge issue and turns out it was just a bad fuse for the cluster.
So my heater blower doesn't work either, how can I test it? Does it have a fuse (the "Heat" fuse)? Probably something simple too... the lever is broke off but I can reach around and move the back side and the blower doesn't work.