Will not having a functional blower motor affect anything aside from no heat/AC?
Probably not. Maybe it's an easy fix. Often those motors are 5 minute jobs. Some are not so easy. Did it make strange noises before it stopped working? Just keep it turned off. If it's stuck and your fan speed switch is giving it power, it could get hot. Maybe very hot. You don't need an electrical incident. p.s. Thumbs down? I gave good advice. Somebody isn't too smart...
NO, It won't hurt anything. But you may just have a bad BLOWER RESISTOR. It's cheaper and easier to fix. It's screwed next to the blower and you can look at it to see if it's broken. Or you can just put the control on FRESH and get heat when you're moving.
