2008 Impreza heat fan, AC, rear defrost another working, no power.  Was working fine while driving and then stopped for no reason.  Fuse 22 blown for AC, tried another and blew again.  No recent electrical installs, no rodents, no accidents.  I heard maybe a bad AC relay?  All other electrical working fine.  Any thoughts would be appreciated.  

Edited January 25, 20197 yr by phillys14

could be a shorted wire in the 'boot' from the body to the hatch.

A short was my first guess, but with it coming out of nowhere with no reason, hoping maybe something else.  

you could try some ohmmeter measurements with the hatch closed, open, ...maybe  have a helper push,pull,wiggle the boot.