Freezer display shows negative 12 to 16 Fahrenheit I already changed freezer ambient thermistor and main mother board need help. Thk y put on diagnostic mode all test came out good.
You will want to check the refrigerator temp to see if it is good. Normally when the freezer is getting too cold it is an indication that the refrigerator section is not getting cold enough and the unit does not shut down. Check the refrigerator temperature and check the resistance of the thermistors. The thermistor values are as follows: 42.2K ohms at 0 degrees, 14.4K ohms at 37 degrees and 5K ohms at 77 degrees.