Amana Appliance Manuals and Guides | Amana Amana Heating & Cooling systems are manufactured under license by Goodman Global, Inc. Please follow the link to search for your manual: amana-hac Search Tips. Search for a 10-digit model number, not a serial number or product name. Model numbers will consist of both numbers and letters. (Some older models may vary.)Troubleshooting Guides · Parts · FAQs Free Amana Furnace User Manuals | ManualsOnline Appliance manuals and free pdf instructions. Find the user manual you need for your home appliance products and more at ManualsOnline.