Today, I performed the annual air conditioning maintenance. I replaced the existing air filter with a new MERV 13 pleated filter to ensure proper airflow. Using a Fieldpiece SC660 clamp meter, I measured the amp draw on the compressor and condenser fan motors, confirming they were within the manufacturer's specified tolerances. The contactor contacts showed no excessive pitting or burning. I brushed the outdoor condenser coils clean of any debris. I checked the refrigerant charge using superheat and subcooling measurements, and it was at the proper level according to the unit's charging charts. All electrical connections were tightened, and the thermostat was verified for proper operation. The air conditioning system is now ready for efficient cooling performance throughout the upcoming season.