yeah it definitely wouldn't be the fuse if it's blinking. I would get an opinion from an a/c place but it could be a fault code warning you about the compressor like mentioned before

 

Still looking,have not forgotten about you.

 

Sounds like a bad ac control unit to me.

 

It was the EATC head... $448 plus labor, fortunately they had it in stock and this is something they are seeing more often on 04-05 F150 & Expeditions

 

I ran into the same problem. I got in my 2005 150 Lariat last night and the entire A/C display was blinking and not wokring. I unsnapped the panel just now and unplugged the power to the A/C. I plugged them (2 power cables) back in and now everything is working fine. I don't know if yours could be fixed the same way but I would definitely suggest trying it before taking it into the shop.

Good Luck

 

I had the same problem on my 05 f150. Couldn't figure it out so as a last effort before I spent a lot of money on a AC control unit. I disconnect the battery for 20 minutes and cleaned the terminals(they were corroded) reconnected them and boom. Problem solved. My AC was on and the unit stop flashing. Hope this helps someone