Complete 2 system a/c repair and preventative maintenance check. Cleaned outdoor coils and checked all components. All electrical components tested within normal manufacturing spec. Main level secondary controller starting to become weak but is barely within manufacturing spec. Adding compressor saver to the system will extend the life of the controller, reduce stress on the compressor, and reduce energy consumption on startup. Neither system has has a drain line water safety to help prevent flooding in the case of common drain line clogs. Main level system main electrical switch has bugs and chewed up in the contacts and is causing it to burn. Both systems cooling at this time.