def METHOD_NAME(self):
    """
    Retrieves the operational status of the device
    Returns:
        A boolean value, True if device is operating properly, False if not
    """
    attr_path = HWMON_DIR + self.fan_rpm_attr
    attr_rv = self.__get_attr_value(attr_path)
    if (attr_rv != 'ERR' and attr_rv != '0.0'):
        return True
    else:
        return False