An air conditioner should not smell like smoke when turned on (or when turned off). I would have to suspect that the electrical insulation is burning.
because you have too many dead babies in your air conditioner tank
sounds like your air conditioner compressor is bad.
sounds like your A.C. compressor clutch is locking up
no
Assuming that the blower motor isn't on fire, it's probably the heater core. Does the smmoke smell sweet. If yes that's antifreeze. The smoke does smell like anti-freeze. Does this suggest that the heater core is the problem?
A smell coming from a reverse cycle air conditioner may be a signal that the filter needs to be cleaned. A smell like engine exhaust might be present if the air conditioner motor is in need of repair.
what color is the smoke. What does it smell like?
yes it can, often second hand smoke can make someone, and their breath if standing close enough to a person, smell like smoke to the point where you would smell like a smoker especially if you are around people who smoke fairly often
Failed compressor
The specific smell of crack cocaine smells very similar to the smell of poison ivy, and is much unlike marijuana smoke hard to get the smell out of clothes.
If it doesn't smell like smoke it could be comdensation off the evaporator core. You might have a clogged evap. case drain. If it is left unchecked it will start to smell moldy. If it is smoke, it usually be gray or black due to melting wires(also stink), afaulty blower bearings( would make noise).
bonfire smells like smoke