You will have to call somebody. The reason for this could be one of many. I am not trying to alarm you but after checking the basics, if you cannot get it to run at least you will not have paid for a tripped breaker or something silly like that. The question does not give enough info to lead you in any direction other than to check the silly stuff. If you do check things and have a specific question. Please repost.
The electric heating elements are probably turned on.
cold fronts is where the air is all condenced and when it is a warm front then it will push all of the cold air out of the atmosphere and it will probably be a storm
Yes, cold air does have a higher density than warm air. For example, if you turn on the fireplace, all of the warm air rises to the ceiling. On the floor, the air is cooler.
yes. If the fan can be reversed it should be set to blow air up since cold air is heavy it stays low to the ground and by reversing the fan to pull the air upward this should help keep room cooler.
This is normal; the nasal passages, mouth and eyes are all connected.
Possible blown fuse
All air conditioners work by removing energy from one liquid and putting it in another liquid. Usually, the two liquids are the same. They blow air over the cold liquid which cools the room. They blow air over the hot liquid to the outside. With valves, air conditioners can be made to blow hot air inside and cold air outside. That is called reverse cycle.
Answering "Why would the AC blow cold air on the drivers side while hot air blows on the passengers side even when all controls are set on cold 1997 Oldsmobile Aurora ?
It depends on what the weather is outside and how developed the air conditioner is. if it's hot out it may take a while to get cool or if it is scorching hot outside it may not get cold at all.
if car is blowing cold air, you need to check the thermostat,the heater core, and the heat control. the coolant will not blow cold air unless there is no coolant at all in engine,then you have bigger problem anyway
Inspect all the vacuum lines, you may have one cracked and you are loosing vacuum to operate the HVAC system.
The thermostat is stuck open and needs to be replaced.
If it does not blow at all then that is a problem, but if it is when you first start it, the Caddy will not blow air on you until it is the selected temp.
Vents are uaually operated by vacuum. Chances are, you have a vacuum leak at the directional valve or at the back of the air controller itself. All of these are in or under the dash. Good luck.
A simple way to check the air conditioning on a 2003 Hyundai Elantra is to turn on the unit in a car. If the air will not blow cold or at all the an the AC system will need to be looked at.
The electric heating elements are probably turned on.
Check your fuses, it might be shot