Perform one system diagnostic for packaging unit that services whole home. Found unit completely empty with no refrigerant charge. No visual evidence of leak. Recommended nitrogen leak search to locate point of leak. Customer declined at this time. Will need to speak with brother. Also recommended Charging up unit with 9 pounds of 410 a. Customer also declined at this time. Disconnect for package unit is off to protect from further damage. Unit is not operational at this time.