If your air conditioner is on the fritz, you may be wondering whether it's time to replace it. AC replacement can be a costly and time-consuming process, but it may be the best option if your unit is beyond repair.Finally, consider the condition of your unit. If it's damaged or not working properly, replacement may be your best option. AC replacement can be a big investment, but it can also be a wise one. Consult with a professional HVAC contractor to determine whether replacement is the best option for you.