Ac Renew requested by customer. Arrived on site and checked in with customer. Was shown trane package unit on rear of house. Changed out contactor switch and added ac renew to circuit while testing. Upon completion customer explained thermostat reading about 2 degrees off temperature in home and feels this wasn't happening before previous visit. Explained capacitor changed out only provides electricity and phase shift to outdoor motors. Not related to indoor thermostat. Offered to look at thermostat settings to possibly calibrate offset for customer. Adjusted temperature offset back 2 degrees for home to stop over cooling. Customer happy with adjusting. All work is complete.