You’ll want to find the date it was made. This is frequently located on a label on the exterior of your unit.
If your equipment is newer than five years old, it could still be warrantied. Having said that, warranty terms and conditions vary between manufacturer and installing company.
At Service Experts Heating & Air Conditioning, we can confirm your warranty status with a system inspection in Calgary for residential heating and cooling systems, regardless of system age or manufacturer warranty standing.