2 year old Kenmore side by side ref...

the freezer feeds the refridgerator with cold air,when you open the freezer door,do you hear the fan blowing,if not you need to change the evap fan motor,next take out the second from bottom food bin and touch back wall,if you feel snow or ice you have a defrost problem, you'll have to take off back wall,advance the timer till it clicks into defrost and see if the heater comes on,if so you have a bad timer,if not read out the t-stat and the heater,if there are plug in wires on t-stat unplug them and bypass the t-stat by plugging t-stat wire to heater if heater comes on change t-stat,leave the heater on to help you defrost the ice off of evap coil and use hair dryer to melt ice,hope that helps