11 unit Qtrly Maintenance / HVAC systems, exhaust fan and make up air units. Performed AC maintenances #5 turned the unit on to check operation of system turned on / running with no problem. Checked refrigerant pressures good, checked amp draws compressor good, outdoor fan 1.0 good, capacitors 7.5 reads 7.6 within manufacturers tolerance +/-6%. Visual inspection of electrical - wiring good no burnt or overheated wire connections, Service disconnect good, contactor - contact points slightly pitting and burnt not affecting function / normal wear. Unit operating with no problems at this time. #4 turned the unit on to check operation of system turned on. Checked refrigerant pressures good, checked amp draws compressor good, outdoor fan 9.6 good, capacitors 7.5 reads 7.5 good. Visual inspection of electrical - wiring good no burnt or overheated wire connections, Service disconnect good, contactor - contact points slightly pitting and burnt not affecting function / normal wear. Unit opera