Arrived at customers house for 2 unit system inspection. On arrival started on downstairs unit. Unit has electronic filter customers would like changed next visit. Under evaporator coil was clean. Blower cabinet was also clean. Went to compressor and hooked up gauges. All pressures and readings were of acceptable range. Capacitor was within acceptable range. Contactor was sending proper voltage. Unit was amping high on Startup. Brought this to customers attention and suggested hard start kit. Customer agreed with hard start kit. Installed. Unit is starting up much easier. Next went to upstairs unit. Changed electronic filter and standard filter for customers. Opened up unit and evaporator coil was clean. Blower cabinet was also clean. Unit was putting out proper delta T. Went to condenser and hooked up gauges. All pressures and readings were of acceptable range. Both capacitors were within acceptable range. Contactor sending proper voltage. Unit checks out. Gave report to customer and