Complete 2 system a/c repair and preventative maintenance check. Found upstairs system with an old furnace. And no secondary water safety to protect the furnace from water damage. Needs inline float switch on the main drain line. Both filters are the clean left new filters for the upstairs system. Both outdoor systems have good electrical components. No signs of arcing or damage to connections. Pressures are good on both. Systems do need compressor saver and surge protector to better protect the system and increase life expectancy.