Customer Questions and Answers for Defrost Control Board by Whirlpool

Richard, You will want to check to make sure that the unit is defrosting. Pull the rear wall of the freezer compartment and check to make sure that the coils are not impacted with frost. If they are and you have already replaced the ADC board then you would want to replace the heater/thermostat assembly and defrost the coils. If when you replace the defrost board it was due to the coils being impacted with ice and you did not clear the coils then this would also cause the unit to continuously run.