What fuse is for the ac in a 20004 expedition?

There isn't a single fuse for the entire AC system in a 2004 Ford Expedition. The AC system uses multiple fuses and relays, protecting different components like the compressor clutch, blower motor, and other related circuits.

To find the correct fuse(s), you must consult your owner's manual. The manual will have a fuse box diagram showing the location of each fuse and what circuit it protects. Look for fuses related to the A/C compressor, blower motor, and possibly the AC clutch relay.

Without the owner's manual, I cannot tell you which fuse(s) are responsible. Using the wrong information could damage your vehicle's electrical system.