Honeywell Thermostat Wiring Diagram 4 Wire

With so many new functions on today’s thermostats (t-stats), there are many more wires to connect up when installing a new or replacement t-stat. Gone are the two-wire days.  In those times, all you needed was one wire from the furnace transformer.  Plus, you had another to feed power to a gas valve or relay … Continue reading Honeywell Thermostat Wiring Diagram 4 Wire



Honeywell Thermostat Not Cooling Down, How to Fix

A Honeywell thermostat not cooling Down can happen for lots of reasons. For example, poor thermostat placement, to a broken cooling system. Here, we discuss some of these reasons. We then offer troubleshooting methods and fixes to solve these cooling issues. First, we examine what problems happen in the thermostat itself. Then we talk about the … Continue reading Honeywell Thermostat Not Cooling Down, How to Fix



Honeywell WiFi Thermostat RTH8580WF Manual

Honeywell provides excellent documentation for their Wi-Fi thermostats, and the 8000 series RTH8580WF wireless Wi-Fi thermostat is no exception.  The supplied documentation walks you through installation, setup, and everyday usage instructions, written in non techy, easy to understand language.  These documents contain lots of picture illustrations of wiring scenarios, screen shots, and program schedule creations.  Further, these manuals are … Continue reading Honeywell WiFi Thermostat RTH8580WF Manual



How to Calibrate Honeywell Thermostat Temperature RTH9580WF

In this post, we show how to calibrate Honeywell thermostat temperature RTH9580WF.  Now why would you wish to calibrate the temp reading on a thermostat (t-stat)?  Well, perhaps your Honeywell t-stat reads warmer or cooler than the room feels.  So you’d like to bring the t-stat temp reading more inline with how it really is. … Continue reading How to Calibrate Honeywell Thermostat Temperature RTH9580WF



Troubleshooting Honeywell Thermostat WiFi Problems RTH9580WF

We’re explaining common Honeywell WiFi thermostat network problem troubleshooting, as experienced on our Honeywell RTH9580WF internet controlled thermostat, although this information applies about as well to Honeywell’s other wireless thermostats, including the RTH8580WF, VisionPRO TH8320WF, VisionPRO 8000, et al. Troubleshooting Honeywell WiFi Thermostat Connection Lost Issues By this, we mean that the thermostat will not connect … Continue reading Troubleshooting Honeywell Thermostat WiFi Problems RTH9580WF



Reset Honeywell Thermostat Settings RTH9580WF, How To

A reset Honeywell thermostat settings clears out all user changed settings.  Resetting also erases lock screen passwords and screen color changes et al. Resetting restores this Honeywell RTH9580WF touchscreen thermostat to factory default condition.  You reset by following the routine below. We suggest this reset Honeywell thermostat settings action when fixing smart thermostat issues as … Continue reading Reset Honeywell Thermostat Settings RTH9580WF, How To



Honeywell Thermostat Not Reaching Set Temperature Troubleshooting

A Honeywell thermostat not reaching set temperature can occur for many reasons.   For example, poor thermostat placement, to a broken heating / cooling system.  Here, we discuss some of the reasons why this happens.  We then offer troubleshooting tips and fixes to solve these issues.  First, we look at what problems happen in the thermostat … Continue reading Honeywell Thermostat Not Reaching Set Temperature Troubleshooting



How to Wire a Honeywell Thermostat with 4 Wires

If you’ve installed more than a few thermostats, you’re likely to have come across many that utilize four wires, as shown below in the units we’ve hooked up.  Typical 4 wire thermostat (t-stat) wiring examples follow.  Some have the common (C) wire, while others do not.  Both examples of how to wire a Honeywell thermostat with 4 wires … Continue reading How to Wire a Honeywell Thermostat with 4 Wires



Honeywell WiFi 9000 Color Touchscreen Thermostat Review

The Honeywell 9000 series Wi-Fi Smart color touchscreen thermostats represent an obvious advance from the 8000 series models.  They’ve upgraded the screen from the so-common monotone green with black text, to a full-color, brighter, higher contrast, customizable LCD display.  The color scheme displayed can be chosen to match your specific room décor. Plus, the screen features a new indoor and … Continue reading Honeywell WiFi 9000 Color Touchscreen Thermostat Review



Honeywell Thermostat Wiring Color Code

With so many new functions appearing on today’s modern thermostats (t-stats), there is of course, many more wires to connect up nowadays, when installing a new or replacement t-stat.  Gone are the two-wire days, when all you needed was one wire from the furnace transformer, and the other to feed power to a gas valve … Continue reading Honeywell Thermostat Wiring Color Code