The ice cubes made in the ice maker are turning into one block of ice. Ice cream is melting. Refrigerator section running fine unless you turn up the temp control then refrrigerator starts to freeze beverages. I'm leaning towards the "Defrost Timer" being the culprit? or could it be the Temp Control? Coils are not blocked up with frost, fans are running OK. I cleaned the coils on the bottom of the refrigerator.