start by checking for a vacuum problem. check to see if blend door is working properly.
Hot air because it is blow out the hot air from the inside of the laptop.
its used to blow air on your face when you get hot like in the summer
check heater fan to see if it is working.
A.C. circulates air(just like a fan) and turns it cool.
Check coolant level, and radiator fan operation.
Are you low on antifreeze ?
check cooling fan
When a room is hot it is better to have the ceiling fan turned counter clockwise. This forces the air to blow down. In the winter the fan should turn clockwise to keep the warm air higher.
most likely it is the duct the factory default is the defrost mode however the fan can come off the fan motor
Away from the lamp to remove hot air. This way you are not blowing unfiltered air and dust on lamp.
Maybeyour water pipes are clogged, you need to flushthere is no power getting to your fan, check your fuses and wiring.
i own a 2001 Chevy venture warner bro. edition. and the rear air blows hot while the air is on up front.. i had it checked out and the rear has no ac its just a fan for the back..go figure. my customized Chevy express full size van does the same thing