You could have a defrost problem that is preventing the refrigerator and freezer from cooling. Here is a link for a video that provides some troubleshooting for cooling problems in a refrigerator that may help you:
Refrigerator Not Cooling Repair
. Your refrigerator has a timer in the control box that is in the roof of that refrigerator section. The parts image below shows that timer as KEY 6. You should see a hole in the bottom of that control where you can manually advance that timer to the defrost mode. Leave the refrigerator door until the compressor starts running if it is not already running. Insert a small screwdriver in that hole and slowly turn that timer until the compressor shuts off. You should be able to detect the defrost heater working in the freezer when that refrigerator is in the defrost mode. If the evaporator heater does not work, you could have a bad defrost bi-metal termination thermostat or a failed heater. If that heater works but the timer does not advance out of that defrost mode after about 45 minutes then you will probably need to replace that timer. These initial troubleshooting steps may help you with this failure based on your description of the problem. If you need more help, reply with additional details and we will assist you further.
You can order parts from the
website. Be sure that you
unplug the refrigerator
before accessing internal components.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services