Start with what the system is doing: weak airflow, uneven room temperatures, frequent cycling, unusual sounds, water near equipment, or a thermostat that does not seem to match the home’s comfort.
A repair-versus-replacement conversation should include system condition, repair history, comfort performance, the home, and priorities—not a one-size-fits-all answer.
Keep outdoor equipment clear of loose debris and provide the technician with safe access. Do not open electrical equipment, handle refrigerant lines, or rely on a web page to diagnose a cooling problem.