I performed a system system cooling maintenance on a 2016 gas system. I checked amps, capacitor, filter, drains, electrical, and safeties. The system is cooling to manufacture specifications. Customer is renting the house for 1 year. I offered items to protect and elevate stress on the system to reduce the risk of failure. Customer approved the installation of a hard start kit and surge protector. I installed and tested both components for proper function.