Central air conditioners usually last from 12 to 15 years. A central cooling unit may fail sooner than that if it is working to cool a space that is larger than its maximum cooling load. If you have an air conditioner that needs to be replaced, it’s incredibly important to properly dispose of your old unit. A junk removal company like LoadUp will make sure your air conditioner is disposed of in the best way possible so it doesn't end up causing water and soil pollution in a landfill.