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2015 nissan altima SL, climate control center lights are out and fan is running 100%.
No buttons do anything.
I can't find a blown fuse, but don't know which one to look for. Book is not clear, so without pulling all fuses I'm stuck with hot air at full blast.

Any thoughts or next steps?
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Here's your fusebox arrangement. Fuse 14 is the battery supply to the HVAC, fuse 30 is ignition supply, fuse 25 is accessory supply. Using a test light, all three should be hot with the ignition on. Also make sure the storage switch is pushed in and the fuse inside it is good. Note that the display is not the control head, it's only switches and buttons. The HVAC Controller (A/C Auto Amp) is mounted underneath the Navi behind the display panel. The display gets power through it.
 
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