Heater control problem from a newbie help!!

[GMC"ER]

Hello I have only posted on here a few times I am now starting on my 69 GMC stepside. I will start from the beginning when I got the truck the controls were broken and a mess the blower was hooked up straight with a toggle switch... it all came out! Now I have installed a complete new heater control system w/o air by the way, new heater harness, new cables, so everything is new I did not replace the speed resistor I checked it and the coil springs were good and I also checked it with a test light to see if power was in fact going through and it was so I installed all new parts today and nothing... I checked and double checked everything that I can think of again and again? Still no blower, I even took the wire off the blower out under the hood and run it strait to the hot post on battery and the blower run so the blower is good. The only thing that I can think of maybe I got a new heater control with a bad switch? Would the speed resister be showing a false reading and not letting the blower switch work? I don't know of anyway else to check a speed resister If it has power going through both sides and the coils are not broken would that not be right? maybe I will get another new switch and a new speed resistor and see how that goes? Any advice? Does this sound right, have I missed something? Any help would be great, thanks Robert DeBord