You’ll want to look for a production date. This is usually located on a label on the outside of your unit.
If your system is under five years old, it may still be under warranty. However, warranty terms and conditions vary by manufacturer and installing company.
At Peitz Service Experts, we can verify your warranty status with a system inspection. We also provide HVAC service memberships in Pierre for residential heating and AC systems, regardless of unit age or manufacturer warranty standing.