Fridge is not cold. It is cool but milk sours and I can see sweat on the jars. I have no idea where to start diagnostic or repair. Freezer is cold and ice maker working HELP>>>>>>>>>>
Pull off back panel of freezer and check frost pattern. If completely frozen locate defrost timer and turn till compressor stops. If it now defrosts, you have a bad defrost control, if not ,check your defrost thermostat and heater in freezer.
Fridge not cold Freezer is 
