Still under warranty, if yes, call and have local warranty depot check it out for you. Don't get too deep into it yourself and void the warranty.
Fans, compressor, ice makers are common noise makers.
I just got it last week. Everyone in the house seems to think the noise coming from the freezer is normal but it is bothering me. Maybe that's how the fridge runs. I did call Sears where I purchased it from and they suggested that I clean the fan before scheduling a tech. Not doing that since it is so new it shouldn't have dust or dirt on it. I'm going to try to return it. Thanks! Do you have any suggestions for a quiet side by side fridge with ice maker?