After you complete the DIY tasks, schedule a professional
AC maintenance visit in late April or early May. A tune-up takes 30β60 minutes and costs $150β$250.
Refrigerant pressure test: Measures how much refrigerant is in your system. Low pressure signals a leak.
Electrical system check: Tests capacitors, contactors, and motor connections. A failing capacitor can shut down your AC instantly.
Airflow and duct inspection: Measures airflow at key vents. Low airflow signals ductwork problems.
Compressor and motor inspection: Listens for abnormal sounds warning of bearing wear or motor damage.
Coil cleaning: Removes dust and debris. Clean coils improve efficiency by 5β10%.
System documentation: You receive a report showing all test results.