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Fan at left of keyboard sounds like a weed eater. I need to replace it. What orientation determines the side of the fan? Looking at the key board or upside down?

Your machine should still be covered under warranty. If you can’t get to a store, Apple will ship you a box over night. The repair is done the same day as they get it. From the time you call till the time you get it back takes four days. Please give us your location for the correct center to call. UPDATE 12/26/2017 right and left are determined as the machine sits in a working position. So when you flip it over right and left are reversed: MacBook Pro 15" Unibody Mid 2012 Right Fan Replacement