How do I know if I have an existing warranty on my furnace, air conditioner or HVAC system?Findthe label on the exterior of the equipment for a manufacture date. Equipment less than five years old may have a warranty, but also may not based on the model. Warranty terms and conditions vary by manufacturer and the installing company. Service Experts Heating & Air Conditioning can verify the warranty status of your heating and cooling system via System Inspection. We also offer a Platinum PLUSTM Protection Plan for residential heating and air conditioning systems, regardless of the age of your equipment or manufacturer warranty status.