I performed a single system cooling maintenance on a 2023 straight cool unit. I checked amps, capacitor, filter, electrical, drains, safeties, cleanliness, and temperature differential. The system is cooling inside of manufacture specifications and is clean. The drain was not draining correctly due to not having the vent capped. This is a negative airflow system and could not drain with a vent because of the suction. The outdoor unit does not have surge protection to protect the outdoor components. The compressor isn’t over amping on start up, but it is starting under a higher load. The airhandler does not have any water safety switches to protect against water damage via draining issues. I provided options to add water protection, a hard start kit, and a surge protector.