This post gives the Honeywell WiFi Thermostat Factory Reset routine. We show this on the RTH9580WF Home thermostat, and this method does the following. First, it erases out all custom settings. Then, it resets the network the thermostat connects to to none. Finally, it restores the thermostat back to factory default state. So, follow the … Continue reading Honeywell WiFi Thermostat Factory Reset