Yes! You have a leaking heater core. The fix is to have it replaced. Have your cooling system flushed, and refilled with a 50/50 mix of the proper anti-freeze. Also replace the thermostat at this time. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info
Maybe there is something wrong with yours or you have animals who have urined somewhere in your house.
It could have a blown gasket which causes that smell. And there could be something loose in the interior of the air conditioner.
How To Find & Fix Coolant Leaks http://www.aa1car.com/library/coolant_leaks.htm
whats wrong when your sense of smell goes wrong
Doesn't have to be anything wrong. Some condensation is a natural result of the combustion process.
A complex machine such as an air conditioner can fail in many different ways, but the most usual way is a leak of the coolant (which is probably freon).
The remains of the old coolant can cause the new coolant to fail. Using the wrong type of coolant can also damage the engine.
Because something is wrong with it. When it is off it does`nt blow anything, that `s why you only notice it when it is on.
The most common problem would be a lack of the coolant in the A/C unit. The other would be a broken condenser.
Your air conditioner may be faulty if it is not dripping water.
If your car is using oil as in you have to keep topping it up it is probably oil getting past the rings after car heats and expands. If your car is using coolant, then you may have a small coolant leak at the head gasket, allowing coolant to enter the cylinder and be burned with the gas , resulting in what looks like smoke but does not smell like oil.
No, there is nothing wrong with it at all, as long as you have permission! Make sure you ask before you do this.