Digital readout in fridge says freezer is zero degrees but it feels warm (i put in a thermometer to check it versus the digital readout built into the fridge compartment and it went up close to 50!) and the defrost heater is so hot it glows!
Then the freezer will cycle, it will cool down to freezing, but not zero and frost will form on evaporator/defrost heater.
Refrigerator is pretty constant read of 37 and feels consistently cold, though I have not checked actual temp.
Do I need a new control board or thermostat or something else? Everything else seems fine.