GE Profile not cooling. Fan is very noisy and intermittent

I arrived home after a 2 week trip to find a power failure had occured at some time during my abscence. The refirgerator was at 64 degrees and the freezer at 32. All the ice had melted and all the product on the upper shelf of the freezer had defrosted. The items in the lower half was starting to deforst. Fan in the back was making a very loud noise and running intemittently. Sounded like it was hitting something. I pulle the panel on the back but there is no visibility of the fan so could not really diagnose
Any sugestions?
Thanks!
M