Faulty Function selector switch. Consider replacement.
Yeah, Cavaliers are a good car to start off with!
Low coolant? System airbound? Thermostat not operating properly? Heat control cable not operating? Selector switch not operating?
You have a bad fan clutch..............
A possible problem could be you power wire is pinched somewhere causing it to touch a ground which will blow the fuse.
Most likely a bad or disconnected vacuum hose to the defrost/floor selector in the heater ducting.
you probally have a bad wire that is shorting out and blowing your fuses.
Check for a vacuum leak either under the hood or under the dash Check the operation of the vacuum actuated motors Check the operation of the selector switch
someone sabotaged your car. either that or you need to stop leaning on steering wheel to start the car. Try turning the key instead.
Check for vacuum leak either under hood or under dash Check for bad vacuum actuator under dash Check for bad selector switch in dash
There probably is a leak. Is there still freon in it? There are ares in the a/c system that are not visable. Was Dye added?
so far everyone points to actuator blender failure but check for vacuum leaks first