I think I have a refrigerant leak. Should I repair or replace my AC?
A coolant leak is a serious issue that will prevent your AC from adequately cooling your home, so the unit needs to be repaired or replaced. If your repairs exceed the cost of a new AC unit, it’s recommended that you buy a new model. In addition, if your unit is near ten years old, you shouldn't pay for anything other than low-cost repairs, as EnergyStar recommends replacing an AC unit every 10-15 years.