yeah
change out everything that says Lennox!!!
Sounds like a wiring issue. You say you've replaced different components, but are you sure you installed new components that are good??? I've seen plenty of motors bad outta the box. I've also seen plenty of defrost controls bad outta the box. Time to go back to sqare one.
Also, apply for pro. We can't really help you here in open forum. So thats all I will say.
I fully support the military and the War on Terrorism.
If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.
If you do know, then do. But do it right. Otherwise, you may not be doing it long.