Tested both the upstairs and the main level systems that were not cooling. Found the upstairs level system is leaking refrigerant and extremely low to the point of the low pressure switch tripping. Due to the system being R22 refrigerant they repairs are very expensive. Main level system has a compressor that is overheating and the windings have failed. Also on this system due to price of repairs and age along with our findings today, it might be time to think about getting a brand new system.