The freezer side does not freeze on the top shelf. The refrigerator freezes everything in the bottom but reads 47 degrees and doesn't cool the top shelves. The fan under the fridge runs fine.

Behind the back wall of the freezer about halfway down, probably behind the light bulb (if there is one there) there is a fan. My guess is that the fan isn't working, or is slow. To test, open the freezer door, then hold the door switch closed and listen for the fan.

This fan should be blowing air up the back of the freezer, and send some of the cold air through a vent at the top of the freezer into the fridge. The air then descends through the fridge and reenters the freezer through a vent at the bottom. If the fan is broken, or if the upper vent is somehow blocked or broken, the cold air will enter (rather than exit) the fridge side at the bottom vent. Because cold air tends to descend and warm air rises, the cold air will freeze the stuff at the bottom of the fridge, and the thermostat (at the top of the fridge) will say it is warm.