An audible warning system for a generator system is provided. The generator system includes a surge suppressor and a rectifier assembly. The rectifier assembly rotates along with the rotor of the generator system, and generates airflow. The surge suppressor includes a face portion. The audible warning system includes a mounting plate and an acoustic alarm device. The mounting plate is attached to the rectifier assembly to mount the surge suppressor and the acoustic alarm device. The acoustic alarm device includes an air inlet portion in engagement with a face portion of the surge suppressor. In operation, this arrangement blocks fluid communication of the airflow into the air inlet portion, in an operational state. A failure of the surge suppressor allows the airflow to pass through the air inlet portion to generate an audible alarm for an operator.