How do I know if I have an existing warranty on my furnace, air conditioner or HVAC system?Look atthe label on the outer surface of the equipment for a manufacture date. Equipment less than five years old may have a warranty, but also may not subject to the make. Warranty terms and conditions vary by manufacturer and the installing company. Service Experts Heating & Air Conditioning can figure out the warranty status of your heating and cooling system via System Inspection. We also offer a Platinum PLUSTM Protection Plan for home heating and air conditioning systems, regardless of how old your equipment is or manufacturer warranty status.