Freezer works fidge dont

Some fridges only cool the freezer, there is an evaporator fan motor that then blows are from the freezer into the fridge to cool it. You may need to replace the fan. ($30) It usually starts squealing before it goes. The fan is located in the freezer section probably at the top behind a vented cover. Check to make sure it spins very freely in not replace it. It could be your drain is plugged or frozen, pull out the fridge and look at the bottom to see where the hose enters the fridge, pour some hot water down from inside the fridge to see if it is clear if not, clear the hose.