WARRANTY. Customer is concerned that system runs and cools way past cooling set point. Was sent with an S30 communicating thermostat but system is a single stage system with an M30. Checked settings and called tech support. Adjusted feels like setting to compensate for humidity. Also sealed area near wire penetration. Customer will try this out and let us know if the problem persists after this. Checked temperature accuracy and it was +/- 1 degree. Unit operational upon departure.