Honeywell RTH9590 Quick Start Guide
![Honeywell RTH9590 Thermostat manual cover](/images/OkZJadkXalnXCqHYbSPoSGkf/thumbs/thumb175x175.webp)
To connect your thermostat to Wi-Fi, press the 'Menu' button, select 'Wi-Fi Setup', and follow the on-screen instructions to connect to your network.
Ensure the thermostat is properly connected to the power source. Check circuit breakers and wiring connections. If the issue persists, consult a professional technician.
To reset the thermostat, go to 'Menu', select 'Preferences', and choose 'Restore Factory Defaults'. Confirm the action to reset.
Access the 'Schedule' menu, and use the intuitive touch interface to set temperature changes based on time and day.
Ensure your thermostat is connected to Wi-Fi and both devices are on the same network. Update the app and restart both devices if necessary.
Utilize the programmable scheduling and smart response technology to ensure optimal temperature settings during peak and off-peak hours.
Regularly check and replace batteries if used, clean the screen, and ensure the thermostat is free of dust and debris.
Go to 'Menu', select 'Preferences', find 'Screen Lock', and follow the prompts to lock or unlock the screen.
The 'Smart Response' feature learns your heating and cooling cycle times to deliver the right temperature at the right time.
Ensure the thermostat is connected to Wi-Fi. Firmware updates are automatic and will install during off-peak hours.