You’ll want to find a manufacture date. This is frequently located on a label on the surface of your system.
If your system is under five years old, it might still be warrantied. Having said that, warranty terms and conditions vary between manufacturer and installing company.
At Service Experts Heating & Air Conditioning, we can verify your warranty state with a system inspection. We also provide HVAC service memberships in Charlotte for residential heating and air conditioning units, regardless of equipment age or manufacturer warranty validity.