Complete 2 system a/c repair and preventative maintenance check. Change both filter, replace W/P #35 for main system humidifier. Find upstairs ac not operating due to loose ac control wire on Y, connect wire and ac operating. Find 23 year old system operating with worn contactor, stress compressor and high amp. System missing in-line water protection for system in attic. Customer want to get estimate for upstairs system. Find main system operating within manufacturer spec but needing hard start kit. Install hard start kit. Clean both system. Both system operating at this time.