The fan may be stuck or just plain broken:
To clean it out and spin it, you must take off the cowl. To do this, take off the chrome trim in front of it. Then take off the 4 cowl screws (2 on the driver side and 2 on the passenger). The fan is in the middle all the way down. It's pointed upwards and you can see the blades. Make sure it isnt clogged or stuck.

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2024 CR-V Hybrid

Previous:
1972 280SE 4.5
2018 Durango R/T, 2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k