You’ll want to find a manufacture date. This is usually located on a label on the surface of your system.
If your equipment is newer than five years old, it might still be protected by a warranty. However, warranty terms and conditions differ manufacturer and installing company.
At Strogen's Service Experts, we can check your warranty standing through a system inspection. We also offer HVAC service memberships in Rochester for residential heating and air conditioning systems, regardless of equipment age or manufacturer warranty standing.