You’ll want to find the date it was made. This is typically located on a label on the surface of your equipment.
If your unit is under five years old, it could still be under warranty. At the same time, warranty terms and conditions vary between manufacturer and installing company.
At Service Experts Heating & Air Conditioning, we can check your warranty state through a system inspection in Medina for residential heating and air conditioning units, regardless of system age or manufacturer warranty standing.