Hi Russ,
This type of a sound usually comes from a motor. There are two motors - one inside the freezer (evaporator fan motor) and one at the bottom by the compressor (condenser fan motor). The model number you entered is incorrect (a digit off and probably incomplete). Double check the model number, then
find it on this list. From what you're saying, sounds like the condenser fan motor might be bad. Once you click on the right model number, find the compressor diagram (probably called "UNIT") and find the motor right next to the compressor.
Let me know if you have more questions.