Alarm sounds on fridge, not cooling - Refrigerators

Is it a bottom mount machine,freezer on the bottom?if the door doesn't close all the way and the alarm is on this could be your problem,the warm air gets in and freezes up the air ducts.look on the ceiling of the freezer and on the lite,if there's ice or like snow there the door was left open.also check the inside back wall of the freezer,touch it and see if there's any ice or like snow on the inside back wall,you could have a defrost problem or like i said before the door could be stuck open,look for frozen water droplets on your food packages or on the ceiling of the freezer,if so shut down the machine,pull out the food in the freezer and with a hair dryer heat the back inside wall of the freezer for like 15 to 30 minutes,turn it on,if you can feel cold air blowing into the fridge section you should be fine,you might have a package or i've seen people install the door draw in backwards and the alarm will go off because the door isn't closing correctly.let me know what you find and where the alarm is coming from,the freezer or the fridge side.good luck and happy holidays to you.