If it was stuck in defrost the heater would be on and the compressor also wouldn't run. If there is not lots of frost on the coils in freezer then your don't have a defrost problem. Just a bad fan.
just called in a sears technician 150 dollar bill that was an easy fix. he says my bottom freezer kenmore fridge with warm fridge problem was due to the pathway being blocked by ice and garbage which is common with these fridges. he took off cover from the fridge bottom and poured boiling water down to the freezer. try that before you replace any parts or call in a tech. next time im getting a top freezer because the blower is on the top not in the middle with the bottom freezers and thus more problem prone.
