FREEZER OVER FREEZING AND REFRIG NOT COOLING CORRECTLY

The freezer cools the refrigerator, so you actually get very cold air passing from the freezer to the refrig. The air from the freezer enters the refrig on the top and falls to the bottom where it is drawn back into the freezer. The temperature of the refrig is regulated by a thermostat and a fan that runs when the thermostat calls for cooling. If the refrig thermostat is faulty and causes the fan to run more than it should, there will be a freezing problem in the refrig at the bottom because cold air falls and warm air rises. If the refrig is thermostat is calling for cooling constantly, this will take more cold air from the freezer than is normal. Your freezer temp might be higher than normal and the refrig will be colder then desired. If the fan from the freezer is running constantly I would suspect a bad refrig thermostat.

check the damper vent door between the refrige and freezer behind a plastic grille and make sure theres cold air coming in from the freezer,sometimes they freeze shut from condensation and can't open to cool the refrige

check the damper vent door between the refrige and freezer and make sure its opening up to let cold air from freezer into the refrige,sometimes they freeze up and cant open and close when called upon to do so,if so deice it with a hair dryer,the side being hot is good telling you the compressor is operating correctly

check the damper vent door between the refrige and freezer compartment and make sure its not frozen shut and the refrige control that you set the refrige temp with is opening and closing it correctly as this door channels the cold air in from the freezer

the damper vent door between the refrige and freezer is not opening and letting in cold air from the freezer,they freeze up or the cold control isnt working to control the damper door

check that the damper door between the refrige and freezer is operating with the refrige adjust control,sometimes they ice up in a position and cant let cold air in to the refrige,deice it with a hair dryer and then adjust that control and watch if it moves open or closed

check the damper door and see if its iced up this is between the refrige and freezer compartments and lets cold into refrige from freezer,if it ices up in the open condition the refrige control cant change the temp,defrost the door and then see if the control moves the door,if so also check the door seals to make sure they are sealing good so as not to let warm air in that can condense and freeze things like the damper door

you do not hear the fan ? your evaporator fan is not working - shut off everything and remove freezer panel look for any excess ice or frust blocking the fan - if everything is clear try spinning the fan blades with your hands, is there any resistence or it spins freely ? Put back cover and turn it on - if fan fails to spin then you have to get it serviced and change the evap fan motor assembly or check the control board.
your unit won't cool if the fan is not working or working erratically.

thermostat problem replace that if you know how to do that or call a technician who will help you

Really need to know what motor(s) are running (compressor, evap fan inside freezer compartment, condenser fan under fridge)?? Of course, check your temperature (thermostat) settings. Side-by-sides usually have 2 of them. They should be labled for refridgerator and freezer. The freezer control usually only opens a baffle from the freezer compartment to the refridge compartment. The refrigerator temp control is the one that controls the compressor on-off cycles and the temp of refrig compartment (this keeps the refrig compartment from freezing the milk and cokes) If the freezer control/baffle is set too far open, this will cause the refrig temp control to shut off too soon for the freezer temp to get low enough. These controls can get bumped out of the correct setting accidently from time to time.
To check the following, the fridge has to be running, or in a condition where it "should be" running: If compressor is running (condenser fan should be too), check if evaporator fan (inside freezer) is running. Open (freezer) door and hold door light switch in when you check evaporator fan operation (some fans stop when door is open) If it is not running you may have a bad evaporator fan motor. It could also be a bad defrost timer, causing the evaporator (also inside back of freezer) to ice-up. This blocks the air flow over evap. Also, there is a defrost terminator switch on the evaporator coil that stops the defrost cycle when coil is clear of ice/frost (but timer hasn't ended defrost cycle). If it is defective, that could also keep the fridge from going into the defrost cycle, or taking it out too soon. If it is the timer, change the defrost terminator as well. Depending on how handy you are, you may be able to check/change any of these parts yourself. If you don't know much about elecrical stuff, you should leave it to a repair tech. Hope this helps.