You’ll want to check for a manufacture date. This is usually located on a label on the surface of your unit.
If your system is less than five years old, it may still be protected by a warranty. However, warranty terms and conditions vary by manufacturer and installing company.
At Service Experts Heating & Air Conditioning, we can confirm your warranty state via a system inspection. We also have HVAC service memberships in Columbus for residential heating and air conditioning equipment, regardless of unit age or manufacturer warranty validity.