Arrived at customers house and began at the thermostat. Home owner stated there was nothing wrong with system and that it is working great. Indoor coil was slightly dusty, so we went ahead and cleaned it. The indoor cabinet and ductwork are clean. The wiring connections are tight and secured. The blower motor is clean and free of debris. Blower motor amps were 1.84. The filter for the unit is clean. We leaked searched the coil, there is no leaks. We headed outside and began our inspection of the outdoor. The refrigerant pressures were 141/328. The contactor was not pitted and the capacitor was within range. The cabinet was dirty, so we went ahead and cleaned it. The coil was slightly dirty so we went ahead and cleaned that as well. Fan motor amps were .59. Compressor amps were 5.26. Went over quotes with customer, he said the school takes care of everything so we emailed the estimate over.