my icepoint fridge freezer ice 178ss is gurgling but not cold at all?

my icepoint fridge freezer ice 178ss is gurgling but not cold at all. I'm guessing it is the thermostat. Does anyone know where i can get a thermostat that would work for that model? I looked at the thermostat and found a code wdf32x-101-024 and 05.d5794c.r but cant seem to find any thermostats that have those codes. can anyone help me? or point me in the direction of some who could? many thanks