faulty thermostat, stuck fan relay, bad fan motor, no voltage to motor, bad circuit board, bad run capacitor...
Your car fan turns on when you have your air condition unit on because, your engine heats up more when the air is on so the fan needs to come on to cool the engine down.
The heater may not be on - but the fan still blows air through the vents when they're open !
The right hand side fan is for the air condition. If the car is on and you switch the air condition the fan will come on.
the back of the fan
There is no air conditioning fan on a 1992 dakota.
Most likely you damper is not opening or your fan motor is not running Check the fan motor if is running also look for vacuum line leak this may affect the damper
1. A bad fan clutch. 2. A dirty a/c condenser. 3. A dirty radiator. 4. A damage fan shroud..........
When you say "cooling fan", do you mean the radiator fan or the cabin air fan? If the radiator fan and the compressor are failing to come on, it could just be low refrigerant but in either case there is no guarantee that any single component would cause what you describe. It could be a fuse, relay, controls, connector or any of a number of possible causes.
heater fan broken.
The blades of the fan have a small angle tilt, so it can push down air.
AnswerThe cooling fan is not on all the time. When driving above 35 mph, ram air takes effect and the air going through the radiator is stronger than the air can be pulled by the fan.When first starting the car, it may take several minutes for the fan to come on because the engine is "warming up".The cooling fan is controlled by a thermostat. It is supposed to come on at a certain temperature. This often when the car is standing still in heavy traffic on a hot day. This causes the engine to get hotter than normal and the fan will switch on.
It might faulty temperature switch or the fan itself.