How to Set Honeywell Thermostat Temperature Limits

The common Honeywell thermostat offers several ways (at least) to cut your heating and cooling costs.  Firstly, on the our test model here, you can set these temp limits.  So this allows control of just how warm and cool the t-stat will make the home. Thus in this post, we detail how to set Honeywell thermostat temperature limits. In this demo, we do this on the RTH9580WF WiFi thermostat.

How to Set Honeywell Thermostat Temperature Limits: Step by Step

1. Bring Up T-Stat   Home   Screen

Firstly, these t-stats usually display the   Home   screen by default.  But your screen may be blank, depending on how you’ve set up the backlight timeout settings.  In that case, just touch any spot on the touchscreen to turn on the display.

You should then see something like the screen we’ve shown next.

2. Tap the   Menu   Button

Secondly, find the   Menu   button near the top right corner of the page.

Tapping the   Menu  button brings up the t-stat’s main menu, as shown next.

3. Tap the   Preferences   Button

Then scroll down the main menu to find the   Preferences   option.

Tapping   Preferences  displays the   Preferences   page.

So scroll down the   Preferences   page and find the   Advances Preferences   button.

4. Tap the   Advanced Preferences   Button to Continue with How to Set Honeywell Thermostat Temperature Limits

Find the   Advanced Preferences   menu item roughly two thirds the way down the   Preferences   menu.

This then brings up the first screen in the   Advanced Preferences   list of screens.  In our t-stat, we got the   Scheduling Options   page, as shown next.

5. Repeatedly Press the Green  Next   Button Until the   Temperature Limits   Screen Appears

On ours, we had to press this button four times to reach the Temp Limits page.  See the picture of this page in the next step.

6. Set the   Minimum Cool Limit   Value

On the left half of the  Temperature Limits   page is the   Minimum Cool Limit  control.

Tap the UP and DOWN arrows until the minimum cool limit temperature you want appears.   We set ours to 50 degrees. See this in the last picture.  This means that our heating system will never try to cool our home to any temp colder than 50 degrees.

7. Set the   Maximum Heat Limit   Value to Continue with How to Set Honeywell Thermostat Temperature Limits

Then on the right half of the  Temperature Limits   page is the   Maximum Heat Limit   adjustment.

Tap the UP and DOWN arrows until the maximum heat temperature you want appears.  We set ours to 90 degrees here.  This means that our heating system will never warm our home to any temp hotter than 90 degrees.

8. Press the Red   Done   Button

Now finish setting both the max heat and min cool temp values. Then tap the   Done   button.

The RTH9580WF then returns you to the  Preferences   screen, as shown next.

9. Press the   Previous Menu   Button

Find the   Previous Menu   button in the last picture, pointed at by the green  arrow.

This takes you back to the   Main Menu,  as shown next.

10. Press the   Home   Button

This takes you back to the t-stat-s home screen.

11. Done with How to Set Honeywell Thermostat Temperature Limits !

At last, we have now successfully set Honeywell thermostat temperature limits on our model.

Other Posts About the Honeywell Thermostat

1. 1. Change WiFi Network on Honeywell Thermostat
   2. How to Change Temperature Setting
   3. Changing the Time and Day on Honeywell Thermostat
   4. Connecting Amazon Echo Dot to Honeywell Thermostats
   5. How to Find Honeywell Thermostat Firmware Version

References for How to Set Honeywell Thermostat Temperature Limits

1. 1. Honeywell Thermostat Official Support Page
   2. Where to Buy a Honeywell Thermostat