I've had this maybe a month. The owners manual indicates that there will be a 'whir' when the fan is on. A whir that is super loud (IMO) and can be heard from another room. I had a tech come out to assess and he has ordered a new fan. But there is no guarantee that will resolve the problem. 

Also some items in the freezer seemed to have thawed a bit, but perhaps that was user error. I will have to monitor the issue.