Fuse blown
check heater fan to see if it is working.
Defective blower motor, switch, or resistor pack.
It depends on how the fan control circuit is wired. If you have a Fan On/Auto switch, yes it will blow cold air if the switch is put to On.
Nine out of ten times it will be the most obvious answer, that is to check for a blown fuse. Your fusebox under the dash should have a fuse named fan or fan motor. Check it, its probably the one.
your fan is shot or it could be a fuse if it the fan it is located under your dash if you buy the fan you will know what it look like pretty easy to install you can get the fan at any auto part store
either a bad fan switch or a bad blower motor. Take it to a trusted mechanic.
Replace the fan with a new or used one. A used one from a auto salvage yard can cost under half the price of the new.
For optimal air circulation in a room, a fan should blow out.
my 94 explorer wont blow heat
For optimal ventilation, a window fan should blow air out of the room.
replace the fan motor
it wont blow heat itll blow cold air