I have my 48" viking refrigerator/freezer acting up. The freezer will get cold to the point an alarm sounds and it recycles until it gets too cold again.

Assuming it is not the power board, everything works. Question is would it be the low voltage control board, the one with the temperature light meter, or the thermostat or both.

Any way to test either / both? Where is the thermostat for the freezer?

Thanks in advance for any guidance.

Best,
Nelson