Complete 3 system A/C repair and preventative maintenance check. Mini-split working ok. Both in house systems working properly inside without secondary water safety attached. UV light upstairs still good. Changed both filters. Cleared drain lines. Blowers are clean. Outdoor units working well. Upstairs has a pitted contactor and needs to be replaced before more damage occurs. The basement system needs a compressor saver and both need surge protectors. Replaced contactor and installed inline float switches.