Performed a Homecare maintenance inspection on the whole home HVAC system. Tested heating and cooling from the thermostat. Measured the refrigerant pressures and electrical component readings. Inspected the safety and cleanliness of the system. Checked the AprilAire media filter. Treated the evaporator coil with pan treatment tablets. Treated the drain line with vinegar. Reported findings to the customer. Replaced the AprilAire 413 media filter. Also installed a locking cap on the system under warranty. Reported results to the customer.