You’ll want to check for a production date. This is usually found on a label on the outside of your system.
If your equipment is under five years old, it could still be under warranty. At the same time, warranty terms and conditions vary by manufacturer and installing company.
At Knochelmann Service Experts, we can confirm your warranty status via a system inspection. We also have HVAC service memberships in Sharonville for residential heating and cooling equipment, regardless of system age or manufacturer warranty standing.