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Honeywell VisionPro TH8000 touch screen will not allow changes to the schedule. Screen is unlocked and not in cleaning mode

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  • kriskleyer Sep 27, 2008

    thanks....but I can't even get the screen to go into set up mode. The whole left side of the screen is not operational



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In the set up mode are you sure the lock was not turned on. The set up mode has a different book for the installer. Do you have the book if not check with Honeywell or let me know.

Posted on Sep 27, 2008


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I have a Honeywell VisionPRO IAQ thermostat. Heat won't kick on automatically, thermostat keeps saying 'wait. Can turn system off, back on and works. Is there something I can do to fix it?

Have you tried reseting the system by throwing the breaker waiting a minute then restarting? Turning it off and on at the keypad isn't the same thing. That has happened to me and the program glitched. I'm not sure what is being displayed on the screen, so am not sure what you have done, partially completed a scheduling program, etc. However, I found the manual online.
You can look through it and see if there is something in there you aren't/are doing to keep it from working properly. There is also a 1800 number for assistance from Honeywell if your still stuck. Hope this helps.

Oct 18, 2017 | Honeywell Heating & Cooling

1 Answer

Honeywell VisionPRO IAQ thermostat. No back light. Screen shows characters, but dim. When touched, back light fails to work. All other systems function okay.

this control has an option for back light display in the set up menu. if it has never worked this may be the problem. if it did work then quit you should replace the t-stat. there are many different models as they have advanced over the years. this is a great control. see if you can find the set up manual

Oct 12, 2013 | Honeywell YTH9421C1002 VisionPRO IAQ...

1 Answer

I have the VisionPro TH8000 home touchscreen programmable thermost, which is 3 years old, and was installed with a new heating and air system. It has worked flawlessly up until this week. All of the...
Try the screen button and clean your screen in the given time.
also try and use the contact us. They will try to walk you through and fix the problem as an ac company will usually just try to sell you another. These are not cheap stats I use one myself, I've have mine for years. I know it isn't much but hope this puts you in the right direction.

May 15, 2011 | Honeywell Electronic Programmable...

1 Answer

Same problem, backlight on all the time
check out this website
if this is the touch screen tstat you have to enter installer setup
touch the SYSTEM button once
hold down what is usually the HOLD and SCREEN keys touch both keys at the same time
(hold the two blank keys on either side of the center key at the bottom)
this will bring you into the setup
change where the numboer is 0120 to 0280 and change 1 to 0 then hit done this should fix it:)

Jul 24, 2009 | Honeywell Electronic Programmable...

2 Answers

Non-deletable schedule in VisionPRO TH8000

The thermostat has a function called "Adaptive Intelligent Recovery".

This feature allows the thermostat to learn how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6.

You can turn off this function. Download the installation guide at the next link:
and look for funcion number 0530 Adaptive Intelligent Recovery. In this manual you also find the way to do a reset with the function number 0710.

I hope this solves your problem.

Nov 19, 2008 | Honeywell Programmable Thermostat Heater

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