Arrived at customers house for system inspection. On arrival customer show me to to Erin Angel is. Started on air handler on the second floor. Air handler was putting out proper delta-t. Had a bit of covering on the underside. Install put filter on rack instead of on unit. Suggested customer get an electronic filter for the proper filter place. All electric wiring was secured. Next went to upstairs air handler. Inspected evaporator coil and saw some bio growth beginning to form. Fan in electrical cabinet were clean. Unit was putting out proper delta-t. Next one to condenser units. Both units pressures and readings were of acceptable range. Both units contractors were putting out proper voltage. Capacitors with an acceptable range. All units check out. Gave report to customer and customer was please. Collected payments and signature and left. Customer happy.