Service diagnostic found the primary drain line was clogged. This was tripping the water safety switch and shutting off the outdoor unit. I also found the outdoor fan motor and starter are showing wear and tear. I spoke with the homeowner and she chose to have the drain line cleaned and replace the outdoor fan motor and starter. I completed the work and function tested the system. I also replaced the air filter for the homeowner. All UV lights are working. No other issues were found. The system is operational at this time.