There could be several reasons why your AC fan won't come on. It could be due to a faulty motor, a malfunctioning thermostat, a blown fuse, or a problem with the wiring. It's best to have a professional HVAC technician inspect and diagnose the issue to determine the exact cause and provide a solution.
check fan relay, fuses. jump power to fan. check freon level in a/c system.
== ==
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.
replace the fan motor
Cooling fan is designed to come on when A/C,defroster, or engine temperature exceeds 235 degrees only
Which fan? there are 4.
blower module on blower/ evap case
Which fan are you refering too? cooling fanHeater fan
The fan comes to cool the computer
It would do that if the AC is turned on.
That is normal.
check the relay / check the temp sensor / try turning the fan on by turning on the AC - fan should come on when the AC compresor turns on /