a method is provided for cooling an engine driven , electrical generator set and for reducing the fan noise associated with operation of the same . the method includes positioning a fan on the first side of the radiator . the temperature adjacent a first side of the radiator is monitored and the fan is rotated in response to the temperature of the air on the first side of the radiator exceeding a threshold . the fan urges air through the radiator in order to cool the engine coolant flowing therethrough .