Found the infinity control touch screen not responsive on certain parts of the screen. Unable to switch modes for heat/cool/off. Gave customer options for replacing thermostat. They do not want the infinity thermostat installed again, offered an ECOBEE 3 lite and Honeywell t4. Customer said they will think about it and reach back out to us Ecobee thermostat needs an add-a-wire since there’s only 4 wires. Whichever thermostat the customer goes with we will need to adjust dip switch settings for the AC for airflow given they will not be using the infinity control anymore.