I arrived at the customer's home to perform an AC unit inspection. I ran the unit in AC mode to check for a temperature split. I checked the amps and ohms on both units to ensure they were within the manufacturer's specifications. I checked the wiring to ensure it was properly connected and not damaged. I checked the pressures on the outside unit to ensure it was operating correctly. I also performed a radon test to check for the presence of radon gas in the home.