Homeowners in Austin are often concerned about identifying when their AC unit requires repair or if it's time for a replacement. Common signs include unusual noises, inconsistent cooling, increased energy bills, frequent cycling on and off, and visible leaks. If the system is older, inefficient, and requiring frequent repairs, it might be more cost-effective to consider a replacement. However, a professional HVAC technician can assess the system's condition and provide the most appropriate advice.