Honeywell Home Help & Support What do you need help with? Thermostats Security Air Quality Water Leak Detector Apps I need help with installation I need help programming my thermostat I want to replace or buy a new thermostat My device isn’t working I need to find a manual T9 and T10 Firmware Update Already own a smart thermostat? savings with your new Honeywell MagicStat® Programmable Thermostat. Your new thermostat will automatically control the temperature in your home, keeping you comfortable while saving energy when pro-grammed according to the instructions in this manual. Direct any questions concerning the application of this thermostat to Honeywell Customer About your new thermostat Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control. Features • Backlit display on RTH2300 • Displays ambient (measured) temperature at all times • One-touch access to setpoint temperature • Preset program settings thermostat that has a blank display, skip this step. 1 Turn power OFF. To protect yourself and your equipment, Turn off the power at the breaker box or switch that controls your heating/cooling system. 3 Remove the old thermostat’s faceplate. On most thermostats, you can take off the faceplate by grasping and gently pulling. Some thermostats 76zV.