When an appliance is broken, the Managemylife web site is a good resource to find out what could be happening and what options are available. I'm sorry to hear about the difficulties your having with your Kenmore Refrigerator. I did some research for you at ManageMyLife and found your owner's manual that may be helpful. You can also try this. Open one door.
Press Ultra Ice / Ice Plus and Ref. Temp buttons at the same time for 5 seconds. (A sound will be heard indicating Demo Mode is deactivated.)