You’ll want to find a production date. This is frequently found on a label on the surface of your equipment.
If your unit is less than five years old, it could still be warrantied. Having said that, warranty terms and conditions vary between manufacturer and installing company.
At D.A. Bennett Service Experts, we can verify your warranty status via a system inspection. We also offer HVAC service memberships in Albany for residential heating and air conditioning equipment, regardless of equipment age or manufacturer warranty validity.