Arrived at customers house, turned on cooling and everything worked properly and was operational. The lady of the house asked for the filter to be changed in which we did change upon our visit. Filter size 20x25x5 Merv 16. Preformed all are electrical tests and checked safety limit switched all test and switches were within normal operational ranges. Lastly we cleaned return air grates and recalibrated the thermostat to a more accurate reading of the house temperature. Over system looked good and was preforming well.