Picture of the Honeywell RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Maximum Heat Limit- adjustment highlighted.

How to Set Temperature Range on Honeywell Thermostat

In this post, we show how to set temperature range Honeywell Thermostat RTH9580WF.  Now why would you wish to change the upper and lower temp limits on a thermostat (t-stat)?  Perhaps you are a landloard wishing to control heating and fuel costs in your tenants’ dwelling. Or, you need to keep your kids from setting the temperature too high or low to preserve your own comfort. Or, you want to save on HVAC wear and tear by disallowing ranges of temperature settings that would make it work too hard.  For any of these and perhaps many other reasons we haven’t thought of, you’d like to restrict how high and low the heating and cooling temperatures can be set.

Setting the temperature range limits on a Honeywell thermostat really a simple process once you know where to find these adjustments. Our Honeywell RTH9580WF t-stat that we’re demonstrating here, does indeed have high and low temperature range limit settings.  This is the t-stat we use in our home. So, we’ll discuss next, how to set this temperature range for better energy control and HVAC system savings from this t-stat.





How to Set Temperature Range Honeywell Thermostat

Many Honeywell t-stats support limiting how low or high their heating and cooling temperatures may be set.  So here, we show how to set the temperature range limit it on our RTH9580WF WiFi thermostat.  First, you start at the   Home   screen, as shown next.

Picture of the Honeywell RTH9580WF WiFi thermostat, showing its -Home- screen, with the -Menu-button highlighted. Set temperature range on Honeywell thermostat.
The  RTH9580WF WiFi thermostat, showing its -Home- screen, with the -Menu-button highlighted. Set temperature range on Honeywell thermostat .

1. Tap the  MENU  Button on the Thermostat Home Screen

This then brings up the RTH9580WF main menu.

We also scrolled down using the arrow buttons, to bring the  Preferences  item into view as shown next.

Picture of the -Main Menu- screen, with the -Preferences- button highlighted.
The -Main Menu- screen, with the -Preferences- button highlighted.

2. Next, Tap the   Preferences   Button

Find this button pointed at by the pink arrow in the last picture.

The  Preferences  screen then shows, as seen next.  We then scrolled down using the arrow buttons, to bring the  Advanced Preferences  item into view.

Picture of the -Preferences- screen, with the -Advanced Preferences- button highlighted.
The -Preferences- screen, with the -Advanced Preferences- button highlighted.

3. Tap the  Advanced Preferences  Button to Continue with How to Set Temperature Range on Honeywell Thermostat

This shows the first in a series of advanced settings screens then; the  Scheduling Options screen, as shown next.

Picture of the Honeywell RTH9580WF thermostat, showing its -Advanced Preferences, Scheduling Options- screen.
Our RTH9580WF thermostat, showing its -Advanced Preferences, Scheduling Options- screen.

4. Repeatedly Press Green  Next   Button Until you Reach the  Temperature Limits   Settings Screen

See this screen shown next,

Picture of the Honeywell RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen.
Honeywell RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen.




5. Set the   Minimum Cool Limit   Temperature Range Value

On the left half of the  Temperature Limits   page is the   Minimum Cool Limit   adjustment control, as circled in green in the next picture.

Picture of the RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Minimum Cool Limit- adjustment highlighted.
The RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Minimum Cool Limit- adjustment highlighted.

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 cooling system will never try to cool our home to any temp cooler than 50 degrees F.

6. Set the   Maximum Heat Limit   Temperature Range Value

On the right half of the  Temperature Limits   page is the   Maximum Heat Limit   adjustment control.  We circled this in green in the next picture.

Picture of the RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Maximum Heat Limit- adjustment highlighted.
The RTH9580WF WiFi thermostat, showing its -Temperature Limits- screen, with the -Maximum Heat Limit- adjustment highlighted.

Tap the UP and DOWN arrows until the maximum heat temperature you want shows up in the control.  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.

7. Press the Red   Done   Button to Continue with How to Set Temperature Range on Honeywell Thermostat

Once you have set both the max heat and min cool temp values, tap the   Done   button, as pointed at by the green arrow in the next picture.

Picture of the RTH9580WF WiFi thermostat, displaying its -Temperature Limits- screen, with the red -Done- button highlighted.
RTH9580WF WiFi thermostat, displaying its -Temperature Limits- screen, with the red -Done- button highlighted.

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

Picture of the RTH9580WF WiFi thermostat, showing its -Preferences- page, with the -Previous Menu- button highlighted.
The RTH9580WF WiFi thermostat, showing its -Preferences- page, with the -Previous Menu- button highlighted.

8. Next, 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.

Picture of the RTH9580WF WiFi thermostat, showing its -Main Menu- page, with the -Home- button highlighted.
Our RTH9580WF WiFi thermostat, showing its -Main Menu- page, with the -Home- button highlighted.

9. Press the   Home   Button

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

Picture of the Honeywell RTH9580WF thermostat, displaying its -Home- screen, after new temperature range limits were applied.
Honeywell RTH9580WF thermostat, displaying its -Home- screen, after new temperature range limits were applied.

11. Done with How to Set Temperature Range on Honeywell Thermostat !

We have now successfully set Honeywell thermostat temperature range limits on our RTH9580WF WiFi thermostat.  Hope this piece helps you to do the same on your thermostat.





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  2. Troubleshooting Honeywell T-Stat WiFi Problems RTH9580WF
  3. How to Connect Honeywell Thermostat to Google Home
  4. Solving Honeywell Thermostat Connection Problems
  5. Changing Time and Day on Honeywell WiFi Thermostat RTH9580WF

Suggested Reading

  1. Honeywell Touchscreen Thermostat RTH7600D Review

References for How to Set Temperature Range on Honeywell Thermostat

  1. Honeywell 9000 Series Color Thermostats User Guide   from Honeywell

Revision History

  • 2019-05-04: Tuned the targeting and added tags.
  • 2019-01-13: First published.
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