I'm not sure on your particular problem but it sounds like you found quite a great buy, good bargain hunting.
I don't know if it'd be the climate control, in a couple weeks I'll have a page on how to resolder it. I had a problem with my fan shutting off from time to time (normally after bumps), and it isn't the motor brushes. I resoldered it and no more problems. Also there is a
123 factory online manual posted there.