Honeywell Smart Thermostat Wiring Instructions

The most “meaty” part of installing a new Honeywell smart thermostat, is correctly wiring it up.  One useful feature about Honeywell t-stats, is that they generally use the same wire labeling as their older models. Today’s WiFi  t-stats still use the R, Rx, C, W, Y1, Y2, et al wires in the same way.  Their … Continue reading Honeywell Smart Thermostat Wiring Instructions



Honeywell RTH9580WF Thermostat Review

The Honeywell RTH9580WF smart thermostat represents a clear advance from the RTH8580WF model, reviewed earlier.  On this model, they improved the screen from the green color so common with older thermostats with black lettering.  In this model, it’s now a full-color, brighter, higher contrast, LCD display. Honeywell RTH9580WF Smart Thermostat Introduction The Full Color Touchscreen … Continue reading Honeywell RTH9580WF Thermostat Review



Reconnecting Honeywell RTH9580WF

You might need to reconnect your Honeywell RTH9580WF smart thermostat (t-stat) to the internet, by changing a new WiFi network. Perhaps you moved the t-stat, and the WiFi it worked with before went out of range. So in this post, we cover reconnecting Honeywell Thermostat RTH9580WF to WiFi network, and offer how-to, step-by-step instructions to … Continue reading Reconnecting Honeywell RTH9580WF



How to Register Honeywell WiFi Thermostat

To control your Honeywell smart t-stat remotely, you must first register and connect to it at the  Honeywell Total Connect Comfort (TCC)   web site.  So here, we show how to register Honeywell WiFi thermostat RTH9580WF online, on that site. How to Register Honeywell WiFi Thermostat RTH9580WF Online: Prerequisite Steps 1. Install your Honeywell WiFi … Continue reading How to Register Honeywell WiFi Thermostat



How to Lock and Unlock a Honeywell Thermostat

Some models of the Honeywell smart thermostats including the RTH9580WF we discuss in this post, feature a screen lock mode.  This prevents anyone from changing thermostat settings without first entering a pass code.  You create this pass code when you request to lock your thermostat.  Subsequently, the t-stat asks you to enter this password to … Continue reading How to Lock and Unlock a Honeywell Thermostat



Change WiFi Network on Honeywell RTH9580WF

You might need to connect your Honeywell RTH9580WF smart thermostat (t-stat) to a new WiFi network.  Perhaps you moved the t-stat, and  the WiFi it worked with before went out of range.  So in this post, we cover just how you do that, how to change WiFi network on Honeywell thermostat RTH9580WF. Then maybe, you have … Continue reading Change WiFi Network on Honeywell RTH9580WF



Honeywell RTH9580WF Color Thermostat Review

The Honeywell RTH9580WF/1005 color screen thermostat is a clear advance from the RTH8580WF model, reviewed earlier. Honeywell RTH9580WF Color Thermostat Intro Honeywell has upgraded the screen from the one-color green with black lettering, to a full-color, brighter, higher contrast LCD display.  Indeed you can set screen colors to match your room décor.  Plus, the screen … Continue reading Honeywell RTH9580WF Color Thermostat Review



Unregister Honeywell Thermostat RTH9580WF

Perhaps you are moving but leaving your Honeywell smart thermostat at the old location.  Or, you wish to sell it to someone else at a different location.  Or maybe they have a different TCC account to assign the t-stat to.  But in any case, please run through the unregister Honeywell WiFi Thermostat RTH9580WF process.  Do … Continue reading Unregister Honeywell Thermostat RTH9580WF



Setting Temperature Differential on Honeywell RTH9580WF Thermostat

Temperature differential is the difference between the turn-on and turn-off temperatures on a thermostat, whether heating or cooling. It ranges between one and three degrees on common t-stats. Indeed, many of today’s t-stats let you set this value. They offer this to account for differing home types and locales, types of furnaces. In this piece, … Continue reading Setting Temperature Differential on Honeywell RTH9580WF Thermostat



How to Change Time and Day on Honeywell Thermostat

The only time you can manually set the time and date on the Honeywell RTH9580WF (or any of the 9000 series color touchscreen models), is when the thermostat is not connected to Wi-Fi (the internet).  But when it is connected, it gets the time and date from the internet.  So in the connected times, you … Continue reading How to Change Time and Day on Honeywell Thermostat