You need a blower resistor. $50 part. About $140 to have the dealer replace.
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.
Check your fuses, it might be shot
it is drawing the hot air off the engine.
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.
When you have the heater on, does it just blow any air at all? or no air?
Possible blown fuse
run a hot wire directly to the blower motor. see if it runs that way.
Tighten up your embouchure and Blow faster air.
If you are talking about the thermostat in your engine, the two have nothing to do with eachother. If there is no air at all coming out the vents, I suggest it is your blower motor.
Compressed air can blow out some of the particulates, but not all. Rather, a new filter is recommended. .
All cars suck air into their motors, they wouldn't be able to operate if they didn't...
first of all i hate to say an obvious answer but does the heater motor even turn. Does it blow air at all. The first thing i would check is if the fan motor is blowing any air at all. If not u need to put in a new heater fan motor. first of all i hate to say an obvious answer but does the heater motor even turn. Does it blow air at all. The first thing i would check is if the fan motor is blowing any air at all. If not u need to put in a new heater fan motor.